AD AD5554BRSZ Quad, current-output, serial-input 16-/14-bit dac Datasheet

Quad, Current-Output,
Serial-Input 16-/14-Bit DACs
AD5544/AD5554
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
VREFA B C D
VDD
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
SDI
SDO
RFBA
INPUT
REGISTER R
DAC A
REGISTER R
DAC A
IOUTA
AGNDA
RFBB
16
INPUT
REGISTER R
DAC B
REGISTER R
DAC B
IOUTB
AGNDB
RFBC
INPUT
REGISTER R
DAC C
REGISTER R
DAC C
IOUTC
AGNDC
CS
RFBD
EN
CLK
INPUT
REGISTER R
DAC A
B
C
D
2:4
DECODE
APPLICATIONS
DAC D
REGISTER R
DAC D
IOUTD
AGNDD
AD5544
POWER-ON
RESET
DGND
RS
MSB
LDAC
AGNDF
00943-001
AD5544: 16-bit resolution
INL of ±1 LSB (B Grade)
AD5554: 14-bit resolution
INL of ±0.5 LSB (B Grade)
2 mA full-scale current ± 20%, with VREF = ±10 V
0.9 µs settling time to ±0.1%
12 MHz multiplying bandwidth
Midscale glitch of −1 nV-sec
Midscale or zero-scale reset
4 separate, 4-quadrant multiplying reference inputs
SPI-compatible, 3-wire interface
Double-buffered registers enable
Simultaneous multichannel change
Internal power-on reset
Temperature range: −40°C to +125°C
Compact 28-lead SSOP and 32-lead LFCSP
VSS
Figure 1.
Automatic test equipment
Instrumentation
Digitally controlled calibration
The applied external reference input voltage (VREFx) determines
the full-scale output current. Integrated feedback resistors (RFB)
provide temperature-tracking, full-scale voltage outputs when
combined with an external I-to-V precision amplifier.
A double-buffered serial data interface offers high speed, 3-wire,
SPI- and microcontroller-compatible inputs using serial data in
(SDI), a chip select (CS), and clock (CLK) signals. In addition,
a serial data out pin (SDO) allows for daisy-chaining when multiple
packages are used. A common, level-sensitive, load DAC strobe
(LDAC) input allows the simultaneous update of all DAC outputs
from previously loaded input registers. Additionally, an internal
power-on reset forces the output voltage to 0 at system turn-on.
The MSB pin allows system reset assertion (RS) to force all registers
to zero code when MSB = 0 or to half-scale code when MSB = 1.
The EV-AD5544/45SDZ is available for evaluating DAC performance. For more information, see the UG-285 evaluation board
user guide.
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
00943-002
The AD5544/AD5554 quad, 16-/14-bit, current output, digitalto-analog converters (DACs) are designed to operate from a
2.7 V to 5.5 V supply range.
The AD5544 is packaged in the compact 28-lead SSOP and 32lead LFCSP. The AD5554 is packed in the compact 28-lead SSOP.
INL ERROR (LSB)
GENERAL DESCRIPTION
–0.1
–0.2
0
10,000
20,000
30,000 40,000
CODE
50,000
60,000
70,000
Figure 2. AD5544 INL vs. Code Plot (TA = 25°C)
Rev. G
Document Feedback
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AD5544/AD5554
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Digital-to-Analog Converter (DAC) ....................................... 13
Applications ....................................................................................... 1
Serial Data Interface ....................................................................... 15
Functional Block Diagram .............................................................. 1
Truth Tables................................................................................. 16
General Description ......................................................................... 1
Power-On Reset .......................................................................... 17
Revision History ............................................................................... 2
ESD Protection Circuits ............................................................ 17
Specifications..................................................................................... 3
Power Supply Sequence ............................................................. 17
AD5544 Electrical Characteristics ............................................. 3
Layout and Power Supply Bypassing ....................................... 18
AD5554 Electrical Characteristics ............................................. 4
Grounding ................................................................................... 18
Timing Diagrams.......................................................................... 6
Applications Information .............................................................. 19
Absolute Maximum Ratings ............................................................ 7
Reference Selection .................................................................... 19
ESD Caution .................................................................................. 7
Amplifier Selection .................................................................... 19
Pin Configurations and Function Descriptions ........................... 8
Outline Dimensions ....................................................................... 21
Typical Performance Characteristics ........................................... 10
Ordering Guide .......................................................................... 22
Theory of Operation ...................................................................... 13
REVISION HISTORY
5/13—Rev. F to Rev. G
8/09—Rev. B to Rev. C
Changes to General Description Section ...................................... 1
Deleted Evaluation Board for the AD5544 Section and
Figure 30 to Figure 35; Renumbered Sequentially ..................... 22
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 22
Change to Table 1 ..............................................................................3
Change to Table 2 ..............................................................................4
1/12—Rev. E to Rev. F
Changes to Figure 1 .......................................................................... 1
Added Figure 18; Renumbered Sequentially .............................. 11
Changes to Evaluation Board Schematics Section ..................... 22
6/11—Rev. D to Rev. E
Added 32-Lead LFCSP.................................................. Throughout
Changes to Table 1, Supply Characteristics Parameters .............. 3
Changes to Table 2, Supply Characteristics Parameters .............. 5
Added Figure 6, Renumbered Subsequent Figures, Changes
to Table 4 ............................................................................................ 7
Changed Applications Section to Applications Information
Section, Added Reference Selection and Amplifier Selection
Sections ............................................................................................ 19
Added Evaluation Board for the AD5544 Section ..................... 21
Updated Outline Dimensions ....................................................... 17
Changes to Ordering Guide .......................................................... 18
9/09—Rev. C to Rev. D
Changes to Features Section............................................................ 1
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 4
Changes to Figure 12 ........................................................................ 9
Changes to Figure 19 ...................................................................... 10
Changes to Table 8 and Table 9 ..................................................... 13
Changes to Ordering Guide .......................................................... 16
8/09—Rev. A to Rev. B
Changes to Features Section ............................................................1
Changes to Figure 2 ...........................................................................1
Changes to Table 1.............................................................................3
Changes to Table 2.............................................................................4
Moved Timing Diagram ...................................................................5
Added Figure 4; Renumbered Sequentially ...................................5
Change to Table 3 ..............................................................................6
Changes to Table 4.............................................................................7
Changes to Typical Performance Characteristics Section ...........8
Changes to Figure 19...................................................................... 10
Moved Table 5, Table 6, and Table 7 ............................................ 12
Moved Truth Tables Section ......................................................... 13
Deleted Figure 27; Renumbered Sequentially ............................ 14
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 16
12/04—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Change to Electrical Characteristics Tables ...................................4
Change to Pin Description Table ................................................. 10
Addition of Power Supply Sequence Section .............................. 19
Addition of Layout and Power Supply Bypassing Section ........ 19
Addition of Grounding Section .................................................... 19
Addition of Figure 32 ..................................................................... 19
4/00—Revision 0: Initial Version
Rev. G | Page 2 of 24
Data Sheet
AD5544/AD5554
SPECIFICATIONS
AD5544 ELECTRICAL CHARACTERISTICS
VDD = 2.7 V to 5.5 V, VSS = 0 V, IOUTx = virtual GND, AGNDx = 0 V, VREFA = VREFB = VREFC = VREFD = 10 V, TA = full operating temperature
range of −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter
STATIC PERFORMANCE 1
Resolution
Relative Accuracy
Symbol
Test Condition/Comments
N
INL
1 LSB = VREFx/216 = 153 µV when VREF = 10 V
AD5544BRSZ
AD5544ARSZ
AD5544BCPZ
AD5544ACPZ-1
AD5544BRSZ
AD5544ARSZ
AD5544BCPZ
AD5544ACPZ-1
Data = 0x0000, TA = 25°C
Data = 0x0000, TA = 85°C
Data = 0xFFFF
Differential Nonlinearity
DNL
Output Leakage Current
IOUTx
Full-Scale Gain Error
Full-Scale Tempco 2
Feedback Resistor
REFERENCE INPUT
VREFx Range
Input Resistance
Input Resistance Match
Input Capacitance2
ANALOG OUTPUT
Output Current
Output Capacitance2
LOGIC INPUT AND OUTPUT
Logic Input Low Voltage
Logic Input High Voltage
Input Leakage Current
Input Capacitance2
Logic Output Low Voltage
Logic Output High Voltage
INTERFACE TIMING2, 3
Clock Width High
Clock Width Low
CS to Clock Setup
Clock to CS Hold
Clock to SDO Propagation
Delay
Load DAC Pulse Width
Data Setup
Data Hold
Load Setup
Load Hold
SUPPLY CHARACTERISTICS
Power Supply Range
Positive Supply Current
Negative Supply Current
GFSE
TCVFS
RFBx
VREFx
RREFx
RREFx
CREFx
VDD = 5 V
Min
4
±0.75
1
6
Max
Unit
16
±1
±2
±1
±4
±1
±1.5
±1
±1
10
20
±3
Bits
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
nA
nA
mV
ppm/°C
kΩ
8
+15
8
V
kΩ
%
pF
2.5
mA
pF
0.8
4
V
V
µA
pF
V
V
tCH
tCL
tCSS
tCSH
tPD
25
25
0
25
2
ns
ns
ns
ns
ns
tLDAC
tDS
tDH
tLDS
tLDH
25
20
20
5
25
IOUTx
COUTx
VIL
VIH
IIL
CIL
VOL
VOH
VDD RANGE
IDD
ISS
−15
4
Typ
Channel-to-channel
Data = 0xFFFF
Code dependent
6
0.35
5
1.25
35
2.4
1
10
0.4
IOL = 1.6 mA
IOH = 100 µA
20
ns
ns
ns
ns
ns
2.7
Logic inputs = 0 V
Logic inputs = 0 V, VSS = −5 V
Rev. G | Page 3 of 24
0.001
5.5
5
9
V
µA
µA
AD5544/AD5554
Parameter
Power Dissipation
Power Supply Sensitivity
AC CHARACTERISTICS 4
Output Voltage Settling Time
Reference Multiplying
Bandwidth (BW)
DAC Glitch Impulse
Feedthrough Error
Crosstalk Error
Digital Feedthrough
Total Harmonic Distortion
Output Spot Noise Voltage
Data Sheet
Symbol
PDISS
PSS
Test Condition/Comments
Logic inputs = 0 V
∆VDD = ±5%
tS
BW − 3 dB
To ±0.1% of full scale, data = 0x0000 to 0xFFFF to 0x0000
VREFx = 5 V p-p, data = 0xFFFF, CFB = 2.0 pF,
0.9
12
µs
MHz
Q
VOUTx/VREFx
VOUTA/VREFB
VREFx = 8 V, data = 0x0000 to 0x8000 to 0x0000
Data = 0x0000, VREFx = 100 mV rms, f = 100 kHz
Data = 0x0000, VREFB = 100 mV rms, adjacent channel,
f = 100 kHz
CS = 1, fCLK = 1 MHz
VREFx = 5 V p-p, data = 0xFFFF, f = 1 kHz
f = 1 kHz, BW = 1 Hz
−1
−65
−90
nV-sec
dB
dB
0.6
−98
7
nV-sec
dB
nV/√Hz
Q
THD
eN
Min
Typ
Max
1.25
0.006
Unit
mW
%/%
All static performance tests (except IOUTx) are performed in a closed-loop system using an external precision OP177 I-to-V converter amplifier. The AD5544 RFB terminal
is tied to the amplifier output. Typical values represent average readings measured at 25°C.
2
These parameters are guaranteed by design and not subject to production testing.
3
All input control signals are specified with tR = tF = 2.5 ns (10% to 90% of 3 V) and timed from a voltage level of 1.5 V.
4
All ac characteristic tests are performed in a closed-loop system using an AD8038 I-to-V converter amplifier.
1
AD5554 ELECTRICAL CHARACTERISTICS
VDD = 2.7 V to 5.5 V, VSS = 0 V, IOUTx = virtual GND, AGNDx = 0 V, VREFA = VREFB = VREFC = VREFD = 10 V, TA = full operating temperature
range of −40°C to +125°C, unless otherwise noted.
Table 2.
Parameter
STATIC PERFORMANCE 1
Resolution
Relative Accuracy
Differential Nonlinearity
Output Leakage Current
Symbol
Test Condition/Comments
N
INL
DNL
IOUTx
1 LSB = VREFx/214 = 610 µV when VREFx = 10 V
Full-Scale Gain Error
Full-Scale Tempco 2
Feedback Resistor
REFERENCE INPUT
VREFx Range
Input Resistance
Input Resistance Match
Input Capacitance2
ANALOG OUTPUT
Output Current
Output Capacitance2
LOGIC INPUT AND OUTPUT
Logic Input Low Voltage
Logic Input High Voltage
Input Leakage Current
Input Capacitance2
Logic Output Low Voltage
Logic Output High Voltage
INTERFACE TIMING2, 3
Clock Width High
Clock Width Low
CS to Clock Setup
Clock to CS Hold
GFSE
TCVFS
RFBx
VREFx
RREFx
RREFx
CREFx
IOUTx
COUTx
VIL
VIH
IIL
CIL
VOL
VOH
Min
Data = 0x0000, TA = 25°C
Data = 0x0000, TA = 85°C
Data = 0x3FFF
VDD = 5 V
4
−15
4
±2
1
6
Max
Unit
14
±0.5
±1
10
20
±10
Bits
LSB
LSB
nA
nA
mV
ppm/°C
kΩ
8
+15
8
V
kΩ
%
pF
2.5
mA
pF
0.8
4
V
V
µA
pF
V
V
25
25
0
25
ns
ns
ns
ns
Channel-to-channel
Data = 0x3FFF
Code dependent
Typ
6
1
5
1.25
80
2.4
1
10
0.4
IOL = 1.6 mA
IOH = 100 µA
tCH
tCL
tCSS
tCSH
Rev. G | Page 4 of 24
Data Sheet
Parameter
Clock to SDO Propagation
Delay
Load DAC Pulse Width
Data Setup
Data Hold
Load Setup
Load Hold
SUPPLY CHARACTERISTICS
Power Supply Range
Positive Supply Current
Negative Supply Current
Power Dissipation
Power Supply Sensitivity
AC CHARACTERISTICS 4
Output Voltage Settling Time
Reference Multiplying
Bandwidth (BW)
DAC Glitch Impulse
Feedthrough Error
Crosstalk Error
Digital Feedthrough
Total Harmonic Distortion
Output Spot Noise Voltage
AD5544/AD5554
Symbol
tPD
Test Condition/Comments
tLDAC
tDS
tDH
tLDS
tLDH
Min
2
Typ
Max
20
25
20
20
5
25
Unit
ns
ns
ns
ns
ns
ns
VDD RANGE
IDD
ISS
PDISS
PSS
Logic inputs = 0 V
Logic inputs = 0 V, VSS = −5 V
Logic inputs = 0 V
∆VDD = ±5%
tS
BW − 3 dB
To ±0.1% of full scale, data = 0x0000 to 0x3FFF to 0x0000
VREFx = 5 V p-p, data = 0xFFFF, CFB = 2.0 pF
0.9
12
µs
MHz
Q
VOUTx/VREFx
VOUTA/VREFB
VREFx = 8 V, data = 0x0000 to 0x2000 to 0x0000
Data = 0x0000, VREFx = 100 mV rms, f = 100 kHz
Data = 0x0000, VREFB = 100 mV rms, adjacent channel,
f = 100 kHz
CS = 1, fCLK = 1 MHz
VREFx = 5 V p-p, data = 0x3FFF, f = 1 kHz
f = 1 kHz, BW = 1 Hz
−1
−65
−90
nV-sec
dB
dB
0.6
−98
7
nV-sec
dB
nV/√Hz
Q
THD
eN
2.7
0.001
5.5
5
9
1.25
0.006
V
µA
µA
mW
%/%
All static performance tests (except IOUT) are performed in a closed-loop system using an external precision OP177 I-to-V converter amplifier. The AD5554 RFB terminal is
tied to the amplifier output. Typical values represent average readings measured at 25°C.
These parameters are guaranteed by design and not subject to production testing.
3
All input control signals are specified with tR = tF = 2.5 ns (10% to 90% of 3 V) and timed from a voltage level of 1.5 V.
4
All ac characteristic tests are performed in a closed-loop system using an AD8038 I-to-V converter amplifier,.
1
2
Rev. G | Page 5 of 24
AD5544/AD5554
Data Sheet
TIMING DIAGRAMS
SDI
A1
A0
D15
D14
D13
D12
D11
D10
D1
D0
INPUT
REG
LD
CLK
tDS
tCSS
CS
tDH
tCH
tCL
tCSH
tLDS
LDAC
tLDH
tLDAC
00943-004
tPD
SDO
Figure 3. AD5544 Timing Diagram
A1
A0
D13
D12
D11
D10
D09
D08
D1
D0
INPUT
REG
LD
CLK
CS
tCSS
tDS
tDH
tCH
tCL
tCSH
tLDS
LDAC
tPD
SDO
Figure 4. AD5554 Timing Diagram
Rev. G | Page 6 of 24
tLDH
tLDAC
00943-005
SDI
Data Sheet
AD5544/AD5554
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
VDD to GND
VSS to GND
VREFx to GND
Logic Input and Output to GND
V(IOUTx) to GND
AGNDx to DGND
Input Current to Any Pin Except Supplies
Package Power Dissipation
Thermal Resistance
28-Lead SSOP
32-Lead LFCSP
Maximum Junction Temperature (TJ Max)
Operating Temperature Range
Storage Temperature Range
Lead Temperature
Vapor Phase, 60 Sec
Infrared, 15 Sec
Rating
−0.3 V, +8 V
+0.3 V, −7 V
−18 V, +18 V
−0.3 V, +8 V
−0.3 V, VDD + 0.3 V
−0.3 V, +0.3 V
±50 mA
(TJ max − TA)/θJA
θJA
100°C/W
32.5°C/W
150°C
−40°C to +125°C
−65°C to +150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may
affect device reliability.
ESD CAUTION
215°C
220°C
Rev. G | Page 7 of 24
AD5544/AD5554
Data Sheet
27 I
OUTD
VREF A 3
26 V
REF D
RFBA 4
25 RFBD
MSB 5
24 DGND
RS 6
AD5544/
AD5554
VDD 7
1
2
3
4
5
6
7
CS 8
AGNDA
IOUTA
VREF A
RFBA
MSB
RS
VDD
23 VSS
22 AGNDF
TOP VIEW 21 LDAC
(Not to Scale)
20 SDO
18 R C
FB
VREF B 12
17 V
REF C
IOUTB 13
16 I
OUTC
AGNDB 14
15 AGNDC
NC = NO CONNECT
DGND
VSS
AGNDF
LDAC
SDO
NC
RFBC
VREF C
9
10
11
12
13
14
15
16
19 NC
AD5544
TOP VIEW
(Not to Scale)
24
23
22
21
20
19
18
17
CLK
SDI
RFBB
VREF B
IOUTB
AGNDB
AGNDC
IOUTC
SDI 10
RFBB 11
NOTES
1. NC = NO CONNECT.
2. CONNECT EXPOSED PAD TO AGND.
00943-003
CS 8
CLK 9
32
31
30
29
28
27
26
25
28 A
GNDD
IOUTA 2
00943-035
AGNDA 1
NC
NC
NC
NC
AGNDD
IOUTD
VREF D
RFBD
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 6. LFCSP Pin Configuration
Figure 5. TSSOP Pin Configuration
Table 4. Pin Function Descriptions
TSSOP
Pin No.
1
2
3
LFCSP
Pin No.
1
2
3
Mnemonic
AGNDA
IOUTA
VREFA
4
5
6
4
5
6
RFBA
MSB
RS
7
8
7
8
VDD
CS
9
10
11
12
9
10
11
12
CLK
SDI
RFBB
VREFB
13
14
15
16
17
13
14
15
16
17
IOUTB
AGNDB
AGNDC
IOUTC
VREFC
18
19
20
18
19
20
RFBC
NC
SDO
21
21
LDAC
22
23
24
25
22
23
24
25
AGNDF
VSS
DGND
RFBD
Description
DAC A Analog Ground.
DAC A Current Output.
DAC A Reference Voltage Input Terminal. Establishes DAC A full-scale output voltage. This pin can be
tied to the VDD pin.
Establish the voltage output for DAC A by connecting to an external amplifier output.
MSB Bit. Set pin during a reset pulse (RS) or at system power-on if tied to ground or VDD.
Reset Pin, Active Low Input. Input registers and DAC registers are set to all 0s or half-scale code
(0x8000 for the AD5544 and 0x2000 for the AD5554), determined by the voltage on the MSB pin.
Register data = 0x0000 when MSB = 0.
Positive Power Supply Input. Specified range of operation: 5 V ± 10%.
Chip Select, Active Low Input. Disables shift register loading when high. Transfers serial register data
to the input register when CS/LDAC returns high. Does not affect LDAC operation.
Clock Input. Positive edge clocks data into the shift register.
Serial Data Input. Input data loads directly into the shift register.
Establish the voltage output for DAC B by connecting to an external amplifier output.
DAC B Reference Voltage Input Terminal. Establishes DAC B full-scale output voltage. This pin can be
tied to the VDD pin.
DAC B Current Output.
DAC B Analog Ground.
DAC C Analog Ground.
DAC C Current Output.
DAC C Reference Voltage Input Terminal. Establishes DAC C full-scale output voltage. This pin can be
tied to the VDD pin.
Establish the voltage output for DAC C by connecting to an external amplifier output.
No Connect. Leave the pin unconnected.
Serial Data Output. Input data loads directly into the shift register. Data appears at SDO at 19 clock
pulses for the AD5544 and 17 clock pulses for the AD5554 after input at the SDI pin.
Load DAC Register Strobe, Level Sensitive Active Low. Transfers all input register data to DAC
registers. Asynchronous active low input. See Table 8 and Table 9 for operation.
High Current Analog Force Ground.
Negative Bias Power Supply Input. Specified range of operation: −5.5 V to +0.3 V.
Digital Ground Pin.
Establish the voltage output for DAC D by connecting to an external amplifier output.
Rev. G | Page 8 of 24
Data Sheet
AD5544/AD5554
TSSOP
Pin No.
26
LFCSP
Pin No.
26
Mnemonic
VREFD
27
28
N/A
N/A
N/A
N/A
N/A
27
28
29
30
31
32
33
IOUTD
AGNDD
NC
NC
NC
NC
EPAD
Description
DAC D Reference Voltage Input Terminal. Establishes DAC D full-scale output voltage. This pin can be
tied to the VDD pin.
DAC D Current Output.
DAC D Analog Ground.
Do not connect.
Do not connect.
Do not connect.
Do not connect.
Connect the exposed pad to AGNDx.
Rev. G | Page 9 of 24
AD5544/AD5554
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
1.5
0.10
1.0
0xF000
–0.05
0.5
–0.10
INL (LSB)
–0.15
–0.20
0x7FFF
0x8000
0
–0.5
–0.25
–0.30
–0.40
0
10,000
20,000
30,000 40,000
CODE
50,000
60,000
–1.5
–2000
70,000
0.15
0.75
0.10
0.50
0.05
0.25
DNL (LSB)
1.00
0
–0.50
–0.15
–0.75
00943-007
–0.10
6000
500
1000
1500
2000
–1.00
–1000
8000 10,000 12,000 14,000 16,000 18,000
CODE
VDD = 5V
VREF = 10V
0x0FFF
–0.25
4000
0
0
–0.05
2000
–500
Figure 10. AD5544 Integral Nonlinearity Error vs. Op Amp Offset
0.20
0
–1000
OFFSET VOLTAGE (µV)
Figure 7. AD5544 DNL vs. Code, TA = 25°C
–0.20
–1500
00943-009
00943-006
–1.0
–0.35
0xF000
0x8000
–750
–500
–250
0
250
500
750
1000
OP AMP OFFSET (µV)
00943-0 11
DNL ERROR (LSB)
0
INL ERROR (LSB)
VDD = 5V
VREF = 10V
0x0FFF
0.05
Figure 11. AD5544 Differential Nonlinearity Error vs. Op Amp Offset
Figure 8. AD5554 INL vs. Code, TA = 25°C
0.10
10
VDD = 5V
VREF = 10V
5
GAIN ERROR (LSB)
0
–0.05
–0.10
0
–5
–10
–0.15
0
2000
4000
6000
8000 10,000 12,000 14,000 16,000 18,000
CODE
–20
–1500
–1000
–500
0
500
1000
OP AMP OFFSET (µV)
Figure 12. AD5544 Gain Error vs. Op Amp Offset
Figure 9. AD5554 DNL vs. Code, TA = 25°C
Rev. G | Page 10 of 24
1500
00943-013
–15
00943-008
DNL ERROR (LSB)
0.05
Data Sheet
AD5544/AD5554
10,000
–3.88
–3.90
–3.92
1000
–3.96
IDD (µA)
VOUT (V)
–3.94
–3.98
–4.00
ZERO SCALE
MIDSCALE
FULL SCALE
0x5555
100
–4.02
10
–4.04
1
1k
0.4
0.5
0.6
0.7
0.8
0.9
TIME (µs)
1.0
1.2
1.1
00943–012
–4.08
Figure 13. AD5544 Midscale Transition
10k
100k
1M
CLOCK FREQUENCY (Hz)
10M
100M
00943-015
–4.06
Figure 16. AD5544 Power Supply Current vs. Clock Frequency
100
VDD = 5V
VREF = 10V
VDD = 5V
VREF = 10V
90
80
VOUT
PSRR (dB)
5V/DIV
70
LDAC
60
50
40
30
00943- 018
20
0
100
1k
10k
100k
1M
FREQUENCY (Hz)
Figure 14. AD5544 Large Signal Settling Time
0.1
00943-020
10
Figure 17. AD5544/AD5554 Power Supply Rejection vs. Frequency
4
20
0
0
0
POWER SPECTRUM (dB)
–20
–8
–0.1
LDAC (V)
VOUT (V)
–4
–12
–40
–60
–80
–100
–120
–16
0
2
4
6
8
TIME (µs)
–20
10
–160
0
5k
10k
15k
FREQUENCY (Hz)
20k
Figure 18. AD5544/AD5554 Analog THD
Figure 15. AD5544 Small Signal Settling Time
Rev. G | Page 11 of 24
25k
00943- 118
–0.2
–2
00943-019
–140
AD5544/AD5554
Data Sheet
300
SUPPLY CURRENT (µA)
250
200
150
100
0
0
0.5
1.0
1.5
2.0
2.5
3.0
LOGIC INPUT (V)
3.5
4.0
4.5
5.0
00943-017
50
Figure 19. AD5544/AD5554 Power Supply Current vs. Logic Input Voltage
Rev. G | Page 12 of 24
Data Sheet
AD5544/AD5554
THEORY OF OPERATION
DIGITAL-TO-ANALOG CONVERTER (DAC)
Each part contains four current-steering R-R ladder DACs.
Figure 20 shows a typical equivalent DAC. Each DAC contains
a matching feedback resistor for use with an external I-to-V
converter amplifier. The RFBx pin connects to the output of the
external amplifier. The IOUTx terminal connects to the inverting
input of the external amplifier. The AGNDx pin should be Kelvinconnected to the load point, requiring full 16-bit accuracy. These
DACs are designed to operate with both negative and positive
reference voltage.
The VDD power pin is used only by the logic to drive the DAC
switches on and off. Note that a matching switch is used in series
with the internal 5 kΩ feedback resistor. If users attempt to
measure the value of RFB, power must be applied to VDD to achieve
continuity. An additional VSS bias pin is used to guard the substrate
during high temperature applications, minimizing zero-scale
leakage currents that double every 10°C. The DAC output
voltage is determined by VREF and the digital data (D) in the
following equations:
VOUT   VREF
D
for the AD 5544

65,536
(1)
D
for the AD 5554
16,384
(2)
VOUT   VREF 
These DACs are also designed to accommodate ac reference input
signals. Both the AD5544 and the AD5554 accommodate input
reference voltages in the range of −15 V to +15 V. The reference
voltage inputs exhibit a constant nominal input resistance of 5 kΩ ±
30%. On the other hand, the IOUTA, IOUTB, IOUTC, and IOUTD
DAC outputs are code dependent and produce various output
resistances and capacitances. The choice of external amplifier
should take into account the variation in impedance generated by
the AD5544/AD5554 on the inverting input node of the amplifier.
The feedback resistance, in parallel with the DAC ladder resistance,
dominates output voltage noise. For multiplying mode applications,
an external feedback compensation capacitor, CFB, may be needed
to provide a critically damped output response for step changes in
reference input voltages. Figure 21 shows the gain vs. frequency
performance at various attenuation settings using a 23 pF external
feedback capacitor connected across the IOUTx and RFBx terminals
for the AD5544 and the AD5554, respectively. To maintain good
analog performance, power supply bypassing of 0.01 μF, in parallel
with 1 μF, is recommended. Under these conditions, a clean power
supply with low ripple voltage capability should be used. Switching
power supplies is usually not suitable for this application due to
the higher ripple voltage and PSS frequency-dependent characteristics. It is best to derive the supply of the AD5544/AD5554
from system analog supply voltages. Do not use the digital
supply (see Figure 22).
2
0
GAIN (dB)
The AD5544 and the AD5554 contain four 16-bit and 14-bit,
current output DACs, respectively. Each DAC has its own independent multiplying reference input. Both the AD5544 and the
AD5554 use a 3-wire, SPI-compatible serial data interface, with
a configurable asynchronous RS pin for half-scale (MSB = 1) or
zero-scale (MSB = 0) preset. In addition, an LDAC strobe enables
4-channel, simultaneous updates for hardware synchronized
output voltage changes.
Note that the output polarity is opposite the VREF polarity for dc
reference voltages.
–2
–4
–6
2R
R
R
2R
2R
–8
100k
RFBX
R
5kΩ
S2
10M
100M
FREQUENCY (Hz)
Figure 21. AD5554 Reference Multiplying Bandwidth vs. Code
S1
IOUTX
AGNDF
AGNDX
FROM OTHER DACS AGND
DGND
DIGITAL INTERFACE CONNECTIONS OMITTED FOR CLARITY.
SWITCHES S1 AND S2 ARE CLOSED, AND VDD MUST BE POWERED.
00943-025
VSS
1M
Figure 20. Typical Equivalent DAC Channel
Rev. G | Page 13 of 24
00943-026
VDD
R
VREF X
AD5544/AD5554
Data Sheet
15V
2R
5V
+
ANALOG
POWER
SUPPLY
R
VDD
AD5544
RR
VREF X
2R
RFBX
R
2R
2R
R
5kΩ
15V
S2
S1
VCC
IOUTX
AGNDF
AGNDX
VOUT
A1
+
VEE
FROM OTHER DACS AGND
LOAD
DIGITAL INTERFACE CONNECTIONS OMITTED.
FOR CLARITY SWITCHES S1 AND S2 ARE CLOSED,
AND VDD MUST BE POWERED.
Figure 22. Recommended Kelvin-Sensed Hookup
Rev. G | Page 14 of 24
00943-028
DGND
VSS
Data Sheet
AD5544/AD5554
SERIAL DATA INTERFACE
Similarly, two right-justified data bytes can be written to the
AD5554. Keeping the CS line low between the first and second
byte transfer results in a successful serial register update.
The AD5544/AD5554 use a 3-wire (CS, SDI, CLK), SPI-compatible
serial data interface. Serial data of the AD5544/AD5554 is clocked
into the serial input register in an 18-bit and 16-bit data-word
format, respectively. The MSB bits are loaded first. Table 5 defines
the 18 data-word bits for the AD5544, and Table 6 defines the
16 data-word bits for the AD5554. Data is placed on the SDI pin
and clocked into the register on the positive clock edge of CLK,
subject to the data setup and data hold time requirements specified
in the interface timing specifications (see Table 1 and Table 2).
When the data is properly aligned in the shift register, the positive edge of the CS initiates the transfer of new data to the target
DAC register, determined by the decoding of Address Bit A1
and Address Bit A0. For the AD5544, Table 5, Table 7, Table 8,
and Figure 3 define the characteristics of the software serial
interface.
Data can be clocked in only while the CS chip select pin is active
low. For the AD5544, only the last 18 bits clocked into the serial
register are interrogated when the CS pin returns to the logic high
state; extra data bits are ignored. For the AD5554, only the last
16 bits clocked into the serial register are interrogated when the
CS pin returns to the logic high state. Because most microcontrollers output serial data in 8-bit bytes, three right-justified data
bytes can be written to the AD5544. Keeping the CS line low
between the first, second, and third byte transfers results in a
successful serial register update.
For the AD5554, Table 6, Table 7, Table 9, and Figure 4 define
the characteristics of the software serial interface. Figure 23 and
Figure 24 show the equivalent logic interface for the key digital
control pins for the AD5544. The AD5554 has a similar configuration, except that it has 14 data bits. Two additional pins, RS and
MSB, provide hardware control over the preset function and
DAC register loading. If these functions are not needed, the RS
pin can be tied to logic high. The asynchronous input RS pin
forces all input and the DAC registers to either the zero-code
state (MSB = 0) or the half-scale state (MSB = 1).
Table 5. AD5544 Serial Input Register Data Format (Data Is Loaded in the MSB-First Format) 1
MSB
B17
A1
1
B16
A0
B15
D15
B14
D14
B13
D13
B12
D12
B11
D11
B10
D10
B9
D9
B8
D8
B7
D7
B6
D6
B5
D5
B4
D4
B3
D3
B2
D2
B1
D1
LSB
B0
D0
Only the last 18 bits of data clocked into the serial register (address + data) are inspected when the positive edge of the CS line returns to logic high. At this point, an
internally generated load strobe transfers the serial register data contents (Bit D15 to Bit D0) to the decoded DAC input register address determined by Bit A1 and Bit A0.
Any extra bits clocked into the AD5544 shift register are ignored; only the last 18 bits clocked in are used. If double-buffered data is not needed, the LDAC pin can be
tied logic low to disable the DAC registers.
Table 6. AD5554 Serial Input Register Data Format (Data Is Loaded in the MSB-First Format) 1
MSB
B15
A1
1
B14
A0
B13
D13
B12
D12
B11
D11
B10
D10
B9
D9
B8
D8
B7
D7
B6
D6
B5
D5
B4
D4
B3
D3
B2
D2
B1
D1
LSB
B0
D0
Only the last 16 bits of data clocked into the serial register (address + data) are inspected when the positive edge of the CS line returns to logic high. At this point, an
internally generated load strobe transfers the serial register data contents (Bit D13 to Bit D0) to the decoded DAC input register address determined by Bit A1 and Bit A0.
Any extra bits clocked into the AD5554 shift register are ignored; only the last 16 bits clocked in are used. If double-buffered data is not needed, the LDAC pin can be
tied logic low to disable the DAC registers.
Table 7. Address Decode
A1
0
0
1
1
A0
0
1
0
1
DAC Decoded
DAC A
DAC B
DAC C
DAC D
Rev. G | Page 15 of 24
AD5544/AD5554
Data Sheet
TRUTH TABLES
Table 8. AD5544 1 Control Logic Truth Table
CS
High
Low
Low
CLK
X
Low
↑ +3
LDAC
High
High
High
RS
High
High
High
MSB 2
X
X
X
Serial Shift Register Function 3
No effect
No effect
Shift register data advanced one bit
Input Register Function
Latched
Latched
Latched
DAC Register
Latched
Latched
Latched
Low
High
Low
High
High
High
High
X
X
No effect
No effect
Latched
Latched
High
High
High
X
X
X
Low
High
↑ +3
High
High
High
X
X
X
No effect
No effect
No effect
Latched
Selected DAC updated with
current shift register contents 4
Latched
Latched
Latched
High
High
X
X
High
High
Low
Low
0
High
No effect
No effect
Latched data = 0x0000
Latched data = 0x8000
Latched data = 0x0000
Latched data = 0x8000
↑+
3
Transparent
Latched
Latched
For the AD5544, data appears at the SDO pin 19 clock pulses after input at the SDI pin.
X = don’t care.
3
↑ + is a positive logic transition.
4
At power-on, both the input register and the DAC register are loaded with all 0s.
1
2
Table 9. AD5554 1 Control Logic Truth Table
RS
High
High
High
MSB 2
Serial Shift Register Function 3
Input Register Function3
DAC Register
↑ +3
LDAC
High
High
High
X
X
X
No effect
No effect
Shift register data advanced one bit
Latched
Latched
Latched
Latched
Latched
Latched
↑ +3
High
Low
High
High
High
High
X
X
No effect
No effect
Latched
Latched
High
High
High
X
X
X
Low
High
↑ +3
High
High
High
X
X
X
No effect
No effect
No effect
Latched
Selected DAC updated with
current shift register contents 4
Latched
Latched
Latched
High
High
X
X
High
High
Low
Low
0
High
No effect
No effect
Latched data = 0x0000
Latched data = 0x2000
Latched data = 0x0000
Latched data = 0x2000
CS
High
Low
Low
Low
CLK
X
L
For the AD5554, data appears at the SDO pin 17 clock pulses after input at the SDI pin.
X = don’t care.
3
↑ + is a positive logic transition.
4
At power-on, both the input register and the DAC register are loaded with all 0s.
1
2
Rev. G | Page 16 of 24
Transparent
Latched
Latched
Data Sheet
AD5544/AD5554
VREF A B C D
CS
EN
AD5544
VDD
CLK
SDI
SDO
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
RFBA
16
INPUT
REGISTER R
DAC A
REGISTER R
DAC A
IOUTA
AGNDA
RFBB
INPUT
REGISTER R
DAC B
REGISTER R
DAC B
IOUTB
AGNDB
DAC A
B
C
D
2:4
DECODE
RFBC
INPUT
REGISTER R
DAC C
REGISTER R
DAC C
IOUTC
AGNDC
RFBD
INPUT
REGISTER R
DAC D
REGISTER R
DAC D
IOUTD
AGNDD
SET
MSB
SET
MSB
DGND
MSB
LDAC
00943-029
AGNDF
POWERON
RESET
VSS
RS
Figure 23. System Level Digital Interfacing
ESD PROTECTION CIRCUITS
TO INPUT REGISTER
All logic input pins contain back-biased ESD protection Zener
diodes that are connected to ground (DGND) and VDD, as
shown in Figure 25.
EN
VDD
SHIFT REGISTER
SDI
19TH/17TH
CLOCK
SDO
DIGITAL
INPUTS
5kΩ
00943-030
CLK
DGND
Figure 24. AD5544/AD5554 Equivalent Logic Interface
00943-031
ADDRESS
DECODER
CS
A
B
C
D
Figure 25. Equivalent ESD Production Circuits
POWER-ON RESET
When the VDD power supply is turned on, an internal reset strobe
forces all the input and DAC registers to the zero-code state or
half-scale state, depending on the MSB pin voltage. The VDD power
supply should have a smooth positive ramp without drooping to
have consistent results, especially in the region of VDD = 1.5 V to
2.3 V. The VSS supply has no effect on the power-on reset performance. The DAC register data stays at a zero-scale or half-scale
setting until a valid serial register data load takes place.
POWER SUPPLY SEQUENCE
As standard practice, it is recommended that VDD, VSS, and ground
be powered up prior to any reference. The ideal power-up sequence
is as follows: AGNDx, DGND, VDD, VSS, VREFx, and the digital inputs.
A noncompliance power-up sequence may elevate the reference
current, but the devices resume normal operation once VDD and
VSS are powered up.
Rev. G | Page 17 of 24
AD5544/AD5554
Data Sheet
AD5544/AD5554
LAYOUT AND POWER SUPPLY BYPASSING
VDD
It is good practice to employ a compact, minimum lead length
layout design. The leads to the input should be as direct as possible
with a minimum conductor length. Ground paths should have
low resistance and low inductance.
C4
10µF
VSS
+
C1
0.1µF
C2
0.1µF
VDD
AGNDX
VSS
DGND
00943-032
Similarly, it is good practice to bypass the power supplies with
quality capacitors for optimum stability. Supply leads to the device
should be bypassed with 0.01 μF to 0.1 μF disc or chip ceramic
capacitors. Low ESR 1 μF to 10 μF tantalum or electrolytic capacitors should also be applied at VDD to minimize any transient
disturbance and filter any low frequency ripple (see Figure 26).
Users should not apply switching regulators for VDD due to the
power supply rejection ratio (PSRR) degradation over frequency.
C3
10µF
Figure 26. Power Supply Bypassing and Grounding Connection
GROUNDING
The DGND and AGNDx pins of the AD5544/AD5554 serve as
digital and analog ground references. To minimize the digital
ground bounce, the DGND terminal should be joined remotely
at a single point to the analog ground plane (see Figure 26).
Rev. G | Page 18 of 24
Data Sheet
AD5544/AD5554
APPLICATIONS INFORMATION
REFERENCE SELECTION
The AD5544/AD5554 are, inherently, two-quadrant multiplying
DACs. That is, they can be easily set up for unipolar output
operation. The full-scale output polarity is the inverse of the
reference input voltage.
In some applications, it may be necessary to generate the full
four-quadrant multiplying capability or a bipolar output swing.
This is easily accomplished using an additional external amplifier (A2) configured as a summing amplifier (see Figure 27).
10kΩ
10kΩ
10V
5kΩ
VREF
A2
VOUT
AD588
–10V < VOUT < +10V
VREFX
ONE CHANNEL
RFBX
IOUTX
AD5544
VSS
AGNDF
A1
AGNDX
DIGITAL INTERFACE CONNECTIONS
OMITTED FOR CLARITY.
00943-0-033
VDD
Figure 27. Four-Quadrant Multiplying Application Circuit
In this circuit, the first and second amplifiers (A1 and A2)
provide a total gain of 2, which increases the output voltage span
to 20 V. Biasing the external amplifier with a 10 V offset from
the reference voltage results in a full four-quadrant multiplying
circuit. The transfer equation of this circuit shows that both
negative and positive output voltages are created as the input
data (D) is incremented from code zero (VOUT = −10 V) to
midscale (VOUT = 0 V) to full scale (VOUT = 10 V).
 D

VOUT 
− 1 × − VREF (for the AD 5544 )
 32,768

(3)
D
− 1 × − VREF (for the AD 5554 )
VOUT 
 8192

(4)
When selecting a reference for use with the AD55xx series
of current output DACs, pay attention to the output voltage,
temperature coefficient specification of the reference. Choosing
a precision reference with a low output temperature coefficient
minimizes error sources. Table 10 lists some of the references
available from Analog Devices, Inc., that are suitable for use
with this range of current output DACs.
AMPLIFIER SELECTION
The primary requirement for the current-steering mode is an
amplifier with low input bias currents and low input offset voltage.
Because of the code-dependent output resistance of the DAC,
the input offset voltage of an op amp is multiplied by the variable
gain of the circuit. A change in this noise gain between two
adjacent digital fractions produces a step change in the output
voltage due to the amplifier’s input offset voltage. This output
voltage change is superimposed upon the desired change in
output between the two codes and gives rise to a differential
linearity error, which, if large enough, can cause the DAC to be
nonmonotonic.
The input bias current of an op amp also generates an offset at
the voltage output because of the bias current flowing in the
feedback resistor, RFB.
Common-mode rejection of the op amp is important in voltageswitching circuits because it produces a code-dependent error
at the voltage output of the circuit.
Provided that the DAC switches are driven from true wideband,
low impedance sources (VIN and AGND), they settle quickly.
Consequently, the slew rate and settling time of a voltage-switching
DAC circuit is determined largely by the output op amp. To obtain
minimum settling time in this configuration, minimize capacitance
at the VREF node (the voltage output node in this application) of
the DAC. This is done by using low input capacitance buffer
amplifiers and careful board design.
Analog Devices offers a wide range of amplifiers for both precision
dc and ac applications, as listed in Table 11 and Table 12.
Rev. G | Page 19 of 24
AD5544/AD5554
Data Sheet
Table 10. Suitable Analog Devices Precision References
Part No.
ADR01
ADR01
ADR02
ADR02
ADR03
ADR03
ADR06
ADR06
ADR420
ADR421
ADR423
ADR425
ADR431
ADR435
ADR391
ADR395
Output Voltage (V)
10
10
5.0
5.0
2.5
2.5
3.0
3.0
2.048
2.50
3.00
5.00
2.500
5.000
2.5
5.0
Initial Tolerance (%)
0.05
0.05
0.06
0.06
0.1
0.1
0.1
0.1
0.05
0.04
0.04
0.04
0.04
0.04
0.16
0.10
Maximum Temperature
Drift (ppm/°C)
3
9
3
9
3
9
3
9
3
3
3
3
3
3
9
9
ISS (mA)
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.5
0.8
0.8
0.12
0.12
Output Noise (μV p-p)
20
20
10
10
6
6
10
10
1.75
1.75
2
3.4
3.5
8
5
8
Package(s)
SOIC-8
TSOT-5, SC70-5
SOIC-8
TSOT-5, SC70-5
SOIC-8
TSOT-5, SC70-5
SOIC-8
TSOT-5, SC70-5
SOIC-8, MSOP-8
SOIC-8, MSOP-8
SOIC-8, MSOP-8
SOIC-8, MSOP-8
SOIC-8, MSOP-8
SOIC-8, MSOP-8
TSOT-5
TSOT-5
Table 11. Suitable Analog Devices Precision Op Amps
Part No.
OP97
OP1177
AD8675
AD8671
ADA4004-1
AD8603
AD8607
AD8605
AD8615
AD8616
Supply Voltage (V)
±2 to ±20
±2.5 to ±15
±5 to ±18
±5 to ±15
±5 to ±15
1.8 to 5
1.8 to 5
2.7 to 5
2.7 to 5
2.7 to 5
VOS Maximum
(μV)
25
60
75
75
125
50
50
65
65
65
IB Maximum
(nA)
0.1
2
2
12
90
0.001
0.001
0.001
0.001
0.001
0.1 Hz to 10 Hz
Noise (μV p-p)
0.5
0.4
0.1
0.077
0.1
2.3
2.3
2.3
2.4
2.4
Supply
Current (μA)
600
500
2300
3000
2000
40
40
1000
2000
2000
Package(s)
SOIC-8, PDIP-8
MSOP-8, SOIC-8
MSOP-8, SOIC-8
MSOP-8, SOIC-8
SOIC-8, SOT-23-5
TSOT-5
MSOP-8, SOIC-8
WLCSP-5, SOT-23-5
TSOT-5
MSOP-8, SOIC-8
VOS (Max) (μV)
1500
1500
1000
3000
35
5000
5000,
6000
6000
10,000
IB (Max) (nA)
0.006
0.006
10,500
750
100
500
500
350
350
7000
Package(s)
SOIC-8, SOT-23-5
SOIC-8, MSOP-8
SOIC-8, MSOP-8
SOIC-8, SC70-5
LFCSP-8, SOIC-8
SOT-23-5, SOIC-8
SOIC-8, MSOP-8
SOT-23-5, SOIC-8
SOIC-8, MSOP-8
SOIC-8, PDIP-8
Table 12. Suitable Analog Devices High Speed Op Amps
Part No.
AD8065
AD8066
AD8021
AD8038
ADA4899-1
AD8057
AD8058
AD8061
AD8062
AD9631
Supply Voltage (V)
5 to 24
5 to 24
5 to 24
3 to 12
5 to 12
3 to 12
3 to 12
2.7 to 8
2.7 to 8
±3 to ±6
BW at ACL (MHz)
145
145
490
350
600
325
325
320
320
320
Slew Rate
(V/μs)
180
180
120
425
310
1000
850
650
650
1300
Rev. G | Page 20 of 24
Data Sheet
AD5544/AD5554
OUTLINE DIMENSIONS
10.50
10.20
9.90
15
28
5.60
5.30
5.00
1
8.20
7.80
7.40
14
0.65 BSC
0.38
0.22
8°
4°
0°
SEATING
PLANE
0.95
0.75
0.55
060106-A
0.05 MIN
COPLANARITY
0.10
0.25
0.09
1.85
1.75
1.65
2.00 MAX
COMPLIANT TO JEDEC STANDARDS MO-150-AH
Figure 28. 28-Lead Shrink Small Outline Package [SSOP]
(RS-28)
Dimensions shown in millimeters
0.30
0.25
0.18
32
25
1
24
0.50
BSC
0.80
0.75
0.70
SEATING
PLANE
0.50
0.40
0.30
3.65
3.50 SQ
3.45
EXPOSED
PAD
8
17
TOP VIEW
16
0.05 MAX
0.02 NOM
COPLANARITY
0.08
0.20 REF
9
BOTTOM VIEW
0.25 MIN
3.50 REF
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
COMPLIANT TO JEDEC STANDARDS MO-220-WHHD.
Figure 29. 32-Lead Lead Frame Chip Scale Package [LFCSP_WQ]
5 mm × 5 mm Body, Very Very Thin Quad
(CP-32-11)
Dimensions shown in millimeters
Rev. G | Page 21 of 24
PIN 1
INDICATOR
04-02-2012-A
PIN 1
INDICATOR
5.10
5.00 SQ
4.90
AD5544/AD5554
Data Sheet
ORDERING GUIDE
Model 1
AD5544ARS
AD5544ARSZ
AD5544ARSZ-REEL7
AD5544BRSZ
AD5544BRSZ-REEL7
AD5544ACPZ-1-R2
AD5544ACPZ-1-RL7
AD5544BCPZ-R2
AD5544BCPZ-RL7
AD5554BRSZ
EV-AD5544/45SDZ
1
RES Bit
16
16
16
16
16
16
16
16
16
14
INL LSB
±2
±2
±2
±1
±1
±4
±4
±1
±1
±0.5
DNL LSB
±1.5
±1.5
±1.5
±1
±1
±1
±1
±1
±1
±1
Temperature
Range
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
Z = RoHS Compliant Part.
Rev. G | Page 22 of 24
Package Description
28-Lead Shrink Small Outline Package [SSOP]
28-Lead Shrink Small Outline Package [SSOP]
28-Lead Shrink Small Outline Package [SSOP]
28-Lead Shrink Small Outline Package [SSOP]
28-Lead Shrink Small Outline Package [SSOP]
32-Lead LFCSP_WQ
32-Lead LFCSP_WQ
32-Lead LFCSP_WQ
32-Lead LFCSP_WQ
28-Lead Shrink Small Outline Package [SSOP]
Evaluation Board
Package
Option
RS-28
RS-28
RS-28
RS-28
RS-28
CP-32-11
CP-32-11
CP-32-11
CP-32-11
RS-28
Data Sheet
AD5544/AD5554
NOTES
Rev. G | Page 23 of 24
AD5544/AD5554
Data Sheet
NOTES
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
©2000–2013 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D00943-0-5/13(G)
Rev. G | Page 24 of 24
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