AD5689R-EP Data Sheet

FEATURES
FUNCTIONAL BLOCK DIAGRAM
VDD
VLOGIC
GND
VREF
AD5689R-EP
2.5V
REFERENCE
SCLK
SYNC
SDIN
INPUT
REGISTER
DAC
REGISTER
STRING
DAC A
VOUT A
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
VOUT B
BUFFER
SDO
LDAC RESET
POWER-ON
RESET
GAIN =
×1/×2
RSTSEL
GAIN
POWERDOWN
LOGIC
13406-001
High relative accuracy (INL): ±4 LSB maximum at 16 bits
Low drift 2.5 V reference: 4 ppm/°C typical
Tiny package: 3 mm × 3 mm, 16-lead LFCSP
Total unadjusted error (TUE): ±0.1% of FSR maximum
Offset error: ±1.5 mV maximum
Gain error: ±0.1% of FSR maximum
High drive capability: 15 mA, 0.5 V from supply rails
User-selectable gain of 1 or 2 (GAIN pin)
Reset to zero scale or midscale (RSTSEL pin)
1.8 V logic compatibility
50 MHz SPI with readback or daisy chain
Low glitch: 0.5 nV-sec
Robust 4 kV HBM and 1.5 kV FICDM ESD ratings
Low power: 3.3 mW at 3 V
2.7 V to 5.5 V power supply
INTERFACE LOGIC
Enhanced Product
Dual, 16-Bit nanoDAC+
with 4 ppm/°C Reference, SPI Interface
AD5689R-EP
Figure 1.
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC)
Temperature range: −55°C to +125°C
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Optical transceivers
Base station power amplifiers
Process control (PLC input/output cards)
Industrial automation
Data acquisition systems
GENERAL DESCRIPTION
The AD5689R-EP, a member of the nanoDAC+™ family, is a low
power, dual, 16-bit buffered voltage output digital-to-analog converter (DAC). The device includes a 2.5 V, 4 ppm/°C internal
reference (enabled by default) and a gain select pin giving a fullscale output of 2.5 V (gain = 1) or 5 V (gain = 2). The device operates
from a single 2.7 V to 5.5 V supply, is guaranteed monotonic
by design, and exhibits less than 0.1% FSR gain error and 1.5 mV
offset error performance.
The AD5689R-EP also incorporates a power-on reset circuit and a
RSTSEL pin that ensures that the DAC outputs power up to zero
scale or midscale and remains there until a valid write occurs.
The device contains a per channel power-down feature that
reduces the current consumption of the device to 4 µA at 3 V
while in power-down mode.
Rev. 0
The AD5689R-EP uses a versatile serial peripheral interface
(SPI) that operates at clock rates up to 50 MHz, and contains a
VLOGIC pin that is intended for 1.8 V/3 V/5 V logic.
Additional application and technical information can be found
in the AD5689R/AD5687R data sheet.
PRODUCT HIGHLIGHTS
1.
2.
High Relative Accuracy (INL).
±4 LSB maximum
Low Drift 2.5 V On-Chip Reference.
4 ppm/°C typical temperature coefficient
13 ppm/°C maximum temperature coefficient
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Tel: 781.329.4700
©2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
AD5689R-EP
Enhanced Product
TABLE OF CONTENTS
Features .............................................................................................. 1 Timing Characteristics .................................................................6 Enhanced Product Features ............................................................ 1 Daisy-Chain and Readback Timing Characteristics ................7 Applications ....................................................................................... 1 Absolute Maximum Ratings ............................................................9 Functional Block Diagram .............................................................. 1 ESD Caution...................................................................................9 General Description ......................................................................... 1 Pin Configuration and Function Descriptions........................... 10 Product Highlights ........................................................................... 1 Typical Performance Characteristics ........................................... 11 Revision History ............................................................................... 2 Outline Dimensions ....................................................................... 17 Specifications..................................................................................... 3 Ordering Guide .......................................................................... 17 AC Characteristics........................................................................ 5 REVISION HISTORY
8/15—Revision 0: Initial Version
Rev. 0 | Page 2 of 17
Enhanced Product
AD5689R-EP
SPECIFICATIONS
VDD = 2.7 V to 5.5 V; 1.8 V ≤ VLOGIC ≤ 5.5 V; all specifications TMIN to TMAX, unless otherwise noted. RL = 2 kΩ; CL = 200 pF.
Table 1.
Parameter
STATIC PERFORMANCE 1
Resolution
Relative Accuracy
Min
Offset Error Drift2
Gain Temperature Coefficient (TC)2
DC Power Supply Rejection Ratio2
DC Crosstalk2
LOGIC INPUTS2
Input Current
Input Voltage
Low (VINL)
High (VINH)
Pin Capacitance
±4
±5
±1
1.5
±1.5
±0.1
±0.1
±0.15
±0.1
±0.2
Unit
Test Conditions/Comments
±1
±1
0.15
Bits
LSB
LSB
LSB
mV
mV
% of FSR
% of FSR
% of FSR
% of FSR
% of FSR
µV/°C
ppm
mV/V
Of FSR/°C
DAC code = midscale, VDD = 5 V ± 10%
±2
±3
±2
µV
µV/mA
µV
Due to single channel, full-scale output change
Due to load current change
Due to powering down (per channel)
V
V
nF
nF
kΩ
µV/mA
µV/mA
mA
Ω
µs
Gain = 1
Gain = 2, see Figure 28
RL = ∞
RL = 1 kΩ
V
ppm/°C
Ω
µV p-p
nV/√Hz
At ambient
0
0
Capacitive Load Stability
Short-Circuit Current 4
Load Impedance at Rails 5
Power-Up Time
REFERENCE OUTPUT
Output Voltage 6
Reference TC 7, 8
Output Impedance2
Output Voltage Noise2
Output Voltage Noise Density2
Load Regulation Sourcing2
Load Regulation Sinking2
Output Current Load Capability2
Line Regulation2
Thermal Hysteresis2
±1
±1
0.4
+0.1
+0.01
±0.02
±0.02
±0.01
Total Unadjusted Error
Resistive Load 3
Load Regulation
Max
16
Differential Nonlinearity (DNL)
Zero-Code Error
Offset Error
Full-Scale Error
Gain Error
OUTPUT CHARACTERISTICS 2
Output Voltage Range
Typ
VREF
2 × VREF
2
10
1
80
80
40
25
2.5
2.4975
4
0.04
12
240
2.5025
13
2
All ones loaded to DAC register
Gain = 2
Gain = 1
External reference; gain = 2
Internal reference; gain = 1
5 V ± 10%, DAC code = midscale; −30 mA ≤ IOUT ≤ 30 mA
3 V ± 10%, DAC code = midscale; −20 mA ≤ IOUT ≤ 20 mA
See Figure 28
Coming out of power-down mode; VDD = 5 V
µV/mA
µV/mA
mA
µV/V
ppm
ppm
0.1 Hz to 10 Hz
At ambient; f = 10 kHz, CL = 10 nF
At ambient
At ambient
VDD ≥ 3 V
At ambient
First cycle
Additional cycles
±2
µA
Per pin
0.3 × VLOGIC
V
V
pF
20
40
±5
100
125
25
0.7 × VLOGIC
Gain = 2
Gain = 1
Guaranteed monotonic by design
All zeros loaded to DAC register
Rev. 0 | Page 3 of 17
AD5689R-EP
Parameter
LOGIC OUTPUTS (SDO)2
Output Voltage
Low (VOL)
High (VOH)
Floating State Output Capacitance
POWER REQUIREMENTS
VLOGIC
ILOGIC
VDD
VDD
IDD
Normal Mode9
All Power-Down Modes10
Enhanced Product
Min
Typ
Max
Unit
Test Conditions/Comments
0.4
V
V
pF
ISINK = 200 μA
ISOURCE = 200 μA
5.5
3
5.5
5.5
V
µA
V
V
0.7
1.3
4
6
mA
mA
μA
μA
VLOGIC − 0.4
4
1.8
2.7
VREF + 1.5
0.59
1.1
1
1
Gain = 1
Gain = 2
VIH = VDD, VIL = GND, VDD = 2.7 V to 5.5 V
Internal reference off
Internal reference on at full scale
−40°C to +85°C
−55°C to +125°C
DC specifications tested with the outputs unloaded, unless otherwise noted. Upper dead band = 10 mV and exists only when VREF = VDD with gain = 1 or when VREF/2 =
VDD with gain = 2. Linearity is calculated using a reduced code range of 256 to 65,280.
Guaranteed by design and characterization; not production tested.
3
Channel A can have an output current of up to 15 mA. Similarly, Channel B can have an output current of up to 15 mA, up to a junction temperature of 135°C.
4
VDD = 5 V. The device includes current limiting that is intended to protect the device during temporary overload conditions. Junction temperature may be exceeded
during current limit, but operation above the specified maximum operation junction temperature can impair device reliability.
5
When drawing a load current at either rail, the output voltage headroom, with respect to that rail, is limited by the 25 Ω typical channel resistance of the output
device. For example, when sinking 1 mA, the minimum output voltage = 25 Ω × 1 mA = 25 mV (see Figure 28).
6
Initial accuracy presolder reflow is ±750 μV; output voltage includes the effects of preconditioning drift. See the AD5689R/AD5687R data sheet for more information.
7
Reference is trimmed and tested at two temperatures and is characterized from −55°C to +125°C.
8
Reference temperature coefficient is calculated as per the box method. See the AD5689R/AD5687R data sheet for more information.
9
Interface inactive. Both DACs active. DAC outputs unloaded.
10
Both DACs powered down.
2
Rev. 0 | Page 4 of 17
Enhanced Product
AD5689R-EP
AC CHARACTERISTICS
VDD = 2.7 V to 5.5 V; RL = 2 kΩ to GND; CL = 200 pF to GND; 1.8 V ≤ VLOGIC ≤ 5.5 V; all specifications TMIN to TMAX, unless otherwise
noted. Guaranteed by design and characterization; not production tested.
Table 2.
Parameter 1
Output Voltage Settling Time
Slew Rate
Digital-to-Analog Glitch Impulse
Digital Feedthrough
Digital Crosstalk
Analog Crosstalk
DAC-to-DAC Crosstalk
Total Harmonic Distortion (THD) 3
Output Noise Spectral Density (NSD)
Output Noise
Signal-to-Noise Ratio (SNR)
Spurious Free Dynamic Range (SFDR)
Signal-to-Noise-and-Distortion Ratio (SINAD)
Min
Typ
5
0.8
0.5
0.13
0.1
0.2
0.3
−80
300
6
90
83
80
Max
8
See the AD5689R/AD5687R data sheet.
Temperature range is −55°C to +125°C, typical at 25°C.
3
Digitally generated sine wave at 1 kHz.
1
2
Rev. 0 | Page 5 of 17
Unit
µs
V/µs
nV-sec
nV-sec
nV-sec
nV-sec
nV-sec
dB
nV/√Hz
µV p-p
dB
dB
dB
Test Conditions/Comments 2
¼ to ¾ scale settling to ±2 LSB
1 LSB change around major carry
At ambient, BW = 20 kHz, VDD = 5 V, fOUT = 1 kHz
DAC code = midscale, 10 kHz; gain = 2
0.1 Hz to 10 Hz
At ambient, BW = 20 kHz, VDD = 5 V, fOUT = 1 kHz
At ambient, BW = 20 kHz, VDD = 5 V, fOUT = 1 kHz
At ambient, BW = 20 kHz, VDD = 5 V, fOUT = 1 kHz
AD5689R-EP
Enhanced Product
TIMING CHARACTERISTICS
All input signals are specified with tR = tF = 1 ns/V (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2. See Figure 2.
VDD = 2.7 V to 5.5 V, 1.8 V ≤ VLOGIC ≤ 5.5 V; VREF = 2.5 V. All specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter 1
SCLK Cycle Time
SCLK High Time
SCLK Low Time
SYNC to SCLK Falling Edge Setup Time
Data Setup Time
Data Hold Time
SCLK Falling Edge to SYNC Rising Edge
Minimum SYNC High Time
SYNC Rising Edge to SYNC Rising Edge (DAC Register Update/s)
SYNC Falling Edge to SCLK Fall Ignore
LDAC Pulse Width Low
SYNC Rising Edge to LDAC Rising Edge
SYNC Rising Edge to LDAC Falling Edge
LDAC Falling Edge to SYNC Rising Edge
Minimum Pulse Width Low
Pulse Activation Time
Power-Up Time 2
2
2.7 V ≤ VLOGIC ≤ 5.5 V
Min
Max
20
10
10
10
5
5
10
20
1.8
10
15
20
30
1.5
30
30
4.5
Maximum SCLK frequency is 50 MHz at VDD = 2.7 V to 5.5 V, 1.8 V ≤ VLOGIC ≤ VDD. Guaranteed by design and characterization; not production tested.
Time to exit power-down to normal mode of AD5689R-EP operation, 32nd clock edge to 90% of DAC midscale value, with output unloaded.
t10
t1
SCLK
t8
t3
t4
t2
t7
t14
SYNC
t9
t6
t5
SDIN
DB23
DB0
t11
t13
LDAC1
t12
LDAC2
RESET
VOUT
t15
t16
13406-003
1
1.8 V ≤ VLOGIC < 2.7 V
Min
Max
33
16
16
15
5
5
15
20
2.2
16
25
50
30
1.9
30
30
4.5
Symbol
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
t13
t14
t15
t16
1ASYNCHRONOUS LDAC UPDATE MODE.
2SYNCHRONOUS LDAC UPDATE MODE.
Figure 2. Serial Write Operation
Rev. 0 | Page 6 of 17
Unit
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
µs
ns
ns
µs
Enhanced Product
AD5689R-EP
DAISY-CHAIN AND READBACK TIMING CHARACTERISTICS
All input signals are specified with tR = tF = 1 ns/V (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2. See Figure 4
and Figure 5. VDD = 2.7 V to 5.5 V, 1.8 V ≤ VLOGIC ≤ 5.5 V; VREF = 2.5 V. All specifications TMIN to TMAX, unless otherwise noted. VDD =
2.7 V to 5.5 V.
Table 4.
1.8 V ≤ VLOGIC < 2.7 V
Max
Symbol
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
Min
66
33
33
33
5
5
15
60
60
15
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
SYNC Rising Edge to SCLK Rising Edge
t12
15
10
ns
1
Min
40
20
20
20
5
5
10
30
30
2.7 V ≤ VLOGIC ≤ 5.5 V
Max
Parameter 1
SCLK Cycle Time
SCLK High Time
SCLK Low Time
SYNC to SCLK Falling Edge
Data Setup Time
Data Hold Time
SCLK Falling Edge to SYNC Rising Edge
Minimum SYNC High Time
Minimum SYNC High Time
SDO Data Valid from SCLK Rising Edge
SCLK Falling Edge to SYNC Rising Edge
40
29
Maximum SCLK frequency is 25 MHz or 15 MHz at VDD = 2.7 V to 5.5 V, 1.8 V ≤ VLOGIC ≤ VDD. Guaranteed by design and characterization; not production tested.
Circuit and Timing Diagrams
200µA
VOH (MIN)
CL
20pF
200µA
13406-004
TO OUTPUT
PIN
IOL
IOH
Figure 3. Load Circuit for Digital Output (SDO) Timing Specifications
SCLK
24
48
t11
t8
t12
t4
SYNC
SDIN
t6
DB23
DB0
INPUT WORD FOR DAC N
DB23
DB0
t10
INPUT WORD FOR DAC N + 1
DB23
SDO
UNDEFINED
DB0
INPUT WORD FOR DAC N
Figure 4. Daisy-Chain Timing Diagram
Rev. 0 | Page 7 of 17
13406-005
t5
AD5689R-EP
Enhanced Product
t1
SCLK
24
1
t8
t4
t3
24
1
t7
t2
t9
SYNC
t6
t5
DB23
DB0
DB23
INPUT WORD SPECIFIES
REGISTER TO BE READ
SDO
DB23
DB0
NOP CONDITION
t10
DB0
DB23
UNDEFINED
DB0
SELECTED REGISTER DATA
CLOCKED OUT
Figure 5. Readback Timing Diagram
Rev. 0 | Page 8 of 17
13406-006
SDIN
Enhanced Product
AD5689R-EP
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 5.
Parameter
VDD to GND
VLOGIC to GND
VOUT to GND
VREF to GND
Digital Input Voltage to GND
Operating Temperature Range
Storage Temperature Range
Junction Temperature
16-Lead LFCSP, θJA Thermal
Impedance, 0 Airflow (4-Layer
Board)
Reflow Soldering Peak Temperature,
Pb Free (J-STD-020)
ESD 1
FICDM
1
Rating
−0.3 V to +7 V
−0.3 V to +7 V
−0.3 V to VDD + 0.3 V
−0.3 V to VDD + 0.3 V
−0.3 V to VLOGIC + 0.3 V
−55°C to +125°C
−65°C to +150°C
135°C
70°C/W
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
ESD CAUTION
260°C
4 kV
1.5 kV
Human body model (HBM) classification.
Rev. 0 | Page 9 of 17
AD5689R-EP
Enhanced Product
13 RESET
14 RSTSEL
16 NC
15 VREF
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
VOUTA 1
GND 2
VDD 3
12 SDIN
AD5689R-EP
11 SYNC
10 SCLK
9 VLOGIC
GAIN 8
LDAC 7
SDO 6
VOUTB 5
NC 4
NOTES
1. THE EXPOSED PAD MUST BE TIED TO GND.
2. NC = NO CONNECT. DO NOT CONNECT TO
THIS PIN.
13406-007
TOP VIEW
(Not to Scale)
Figure 6. 16-Lead LFCSP Pin Configuration
Table 6. Pin Function Descriptions
Pin No
1
2
3
Mnemonic
VOUTA
GND
VDD
4
5
6
NC
VOUTB
SDO
7
LDAC
8
GAIN
9
10
VLOGIC
SCLK
11
SYNC
12
SDIN
13
RESET
14
RSTSEL
15
VREF
16
17
NC
EPAD
Description
Analog Output Voltage from DAC A. The output amplifier has rail-to-rail operation.
Ground Reference Point for All Circuitry on the AD5689R-EP.
Power Supply Input. The AD5689R-EP can be operated from 2.7 V to 5.5 V. Decouple the supply with a 10 µF
capacitor in parallel with a 0.1 µF capacitor to GND.
No Connect. Do not connect to this pin.
Analog Output Voltage from DAC B. The output amplifier has rail-to-rail operation.
Serial Data Output. SDO can be used to daisy-chain a number of AD5689R-EP devices together, or it can be used
for readback. The serial data is transferred on the rising edge of SCLK and is valid on the falling edge of the clock.
LDAC can be operated in two modes: asynchronously and synchronously. Pulsing this pin low allows either or
both DAC registers to be updated if the input registers have new data; both DAC outputs can be updated
simultaneously. This pin can also be tied permanently low.
Gain Select. When this pin is tied to GND, both DACs output a span from 0 V to VREF. If this pin is tied to VLOGIC,
both DACs output a span of 0 V to 2 × VREF.
Digital Power Supply. Voltage ranges from 1.8 V to 5.5 V.
Serial Clock Input. Data is clocked into the input shift register on the falling edge of the serial clock input. Data
can be transferred at rates of up to 50 MHz.
Active Low Control Input. This is the frame synchronization signal for the input data. When SYNC goes low, data
is transferred in on the falling edges of the next 24 clocks.
Serial Data Input. This device has a 24-bit input shift register. Data is clocked into the register on the falling edge
of the serial clock input.
Asynchronous Reset Input. The RESET input is falling edge sensitive. When RESET is low, all LDAC pulses are
ignored. When RESET is activated, the input register and the DAC register are updated with zero scale or midscale,
depending on the state of the RSTSEL pin.
Power-On Reset Select. Tying this pin to GND powers up both DACs to zero scale. Tying this pin to VLOGIC powers
up both DACs to midscale.
Reference Voltage. The AD5689R-EP has a common reference pin. When using the internal reference, this is the
reference output pin. When using an external reference, this is the reference input pin. The default for this pin is
as a reference output.
No Connect. Do not connect to this pin.
Exposed Pad. The exposed pad must be tied to GND.
Rev. 0 | Page 10 of 17
Enhanced Product
AD5689R-EP
TYPICAL PERFORMANCE CHARACTERISTICS
2.5015
2.5010
1600
DEVICE 1
DEVICE 2
DEVICE 3
DEVICE 4
DEVICE 5
VDD = 5V
1400
1200
1000
NSD (nV/ Hz)
VREF (V)
2.5005
2.5000
2.4995
800
600
2.4990
400
2.4985
200
–20
0
20
40
60
80
100
120
TEMPERATURE (°C)
0
10
13406-009
2.4980
–40
VDD = 5V
TA = 25°C
100
1k
10k
100k
1M
FREQUENCY (MHz)
13406-013
2.5020
Figure 10. Internal Reference Noise Spectral Density (NSD) vs. Frequency
Figure 7. Internal Reference Voltage (VREF) vs. Temperature
2.5020
2.5015
2.5010
DEVICE 1
DEVICE 2
DEVICE 3
DEVICE 4
DEVICE 5
VDD = 5V
TA = 25°C
T
VREF (V)
2.5005
2.5000
1
2.4995
2.4990
VDD = 5V
–20
0
20
40
60
80
100
120
TEMPERATURE (°C)
13406-010
2.4980
–40
CH1 10µV
M1.0s
A CH1
160mV
13406-014
2.4985
Figure 11. Internal Reference Noise, 0.1 Hz to 10 Hz
Figure 8. VREF vs. Temperature
90
2.5000
VDD = 5V
VDD = 5V
TA = 25°C
80
2.4999
2.4998
VREF (V)
60
50
40
2.4997
2.4996
30
2.4995
20
0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
TEMPERATURE DRIFT (ppm/°C)
5.0
Figure 9. Reference Output Temperature Drift Histogram
2.4993
–0.005
–0.003
–0.001
0.001
0.003
ILOAD (A)
Figure 12. VREF vs. Load Current (ILOAD)
Rev. 0 | Page 11 of 17
0.005
13406-015
2.4994
10
13406-011
NUMBER OF UNITS
70
Enhanced Product
10
10
8
8
6
6
4
4
ERROR (LSB)
2
0
–2
2
INL
0
DNL
–2
–4
–4
–6
VDD = 5V
TA = 25°C
REFERENCE = 2.5V
–10
0
10000
20000
VDD = 5V
TA = 25°C
REFERENCE = 2.5V
–8
30000
40000
50000
60000
CODE
–10
–40
13406-017
–8
0.6
6
0.4
4
ERROR (LSB)
8
0.2
0
–0.2
2
DNL
–2
–4
–0.6
–6
V = 5V
–0.8 DD
TA = 25°C
REFERENCE = 2.5V
–1.0
0
10000
20000
–8
60000
CODE
INL
0
–0.4
VDD = 5V
TA = 25°C
REFERENCE = 2.5V
–10
13406-019
DNL (LSB)
10
0.8
50000
110
Figure 16. INL Error and DNL Error vs. Temperature
1.0
40000
60
TEMPERATURE (°C)
Figure 13. Integral Nonlinearity (INL) vs. Code
30000
10
13406-021
–6
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
VREF (V)
5.0
13406-022
INL (LSB)
AD5689R-EP
Figure 17. INL Error and DNL Error vs. VREF
Figure 14. Differential Nonlinearity (DNL) vs. Code
10
2.5002
TA = 25°C
8
D1
2.5000
6
4
ERROR (LSB)
D3
2.4996
2.4994
2
INL
0
DNL
–2
–4
–6
–8
D2
2.4990
2.5
3.0
3.5
4.0
4.5
5.0
VDD (V)
5.5
Figure 15. VREF vs. Supply Voltage (VDD)
VDD = 5V
TA = 25°C
REFERENCE = 2.5V
–10
2.7
3.2
3.7
4.2
4.7
5.2
SUPPLY VOLTAGE (V)
Figure 18. INL Error and DNL Error vs. Supply Voltage
Rev. 0 | Page 12 of 17
13406-023
2.4992
13406-016
VREF (V)
2.4998
Enhanced Product
AD5689R-EP
1.5
0.10
0.08
1.0
0.04
0.5
FULL-SCALE ERROR
0.02
0
ERROR (mV)
GAIN ERROR
–0.02
OFFSET ERROR
–1.0
60
80
100
120
TEMPERATURE (°C)
–1.5
2.7
13406-024
40
4.7
5.2
0.8
0.6
ZERO-CODE ERROR
0.2
20
40
60
80
100
120
TEMPERATURE (°C)
13406-025
OFFSET ERROR
VDD = 5V
0.09 TA = 25°C
INTERNAL REFERENCE = 2.5V
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
–40
0.10
0.08
TOTAL UNADJUSTED ERROR (% of FSR)
0.10
0.06
0.04
0.02
GAIN ERROR
0
FULL-SCALE ERROR
–0.04
4.7
5.2
13406-026
–0.06
SUPPLY VOLTAGE (V)
20
40
60
80
100
120
Figure 23. Total Unadjusted Error (TUE) vs. Temperature
0.08
VDD = 5V
–0.08 T = 25°C
A
INTERNAL REFERENCE = 2.5V
–0.10
2.7
3.2
3.7
4.2
0
TEMPERATURE (°C)
Figure 20. Zero-Code Error and Offset Error vs. Temperature
–0.02
–20
13406-028
TOTAL UNADJUSTED ERROR (% of FSR)
1.0
0
4.2
0.10
1.2
–20
3.7
Figure 22. Zero-Code Error and Offset Error vs. Supply Voltage
VDD = 5V
1.4 T = 25°C
A
REFERENCE = 2.5V
0
–40
3.2
SUPPLY VOLTAGE (V)
Figure 19. Gain Error and Full-Scale Error vs. Temperature
0.4
VDD = 5V
TA = 25°C
INTERNAL REFERENCE = 2.5V
13406-027
–0.04
VDD = 5V
–0.08 T = 25°C
A
REFERENCE = 2.5V
–0.10
–40
–20
0
20
ERROR (mV)
0
–0.5
–0.06
ERROR (% of FSR)
ZERO-CODE ERROR
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
V
= 5V
–0.08 T DD= 25°C
A
INTERNAL REFERENCE = 2.5V
–0.10
2.7
3.2
3.7
4.2
4.7
SUPPLY VOLTAGE (V)
Figure 24. TUE vs. Supply, Gain = 1
Figure 21. Gain Error and Full-Scale Error vs. Supply
Rev. 0 | Page 13 of 17
5.2
13406-029
ERROR (% of FSR)
0.06
Enhanced Product
0
1.0
–0.01
0.8
–0.02
0.6
–0.03
0.4
–0.04
0.2
–0.05
–0.06
–0.2
–0.07
–0.4
–0.08
–0.6
VDD = 5V
–0.09 T = 25°C
A
INTERNAL REFERENCE = 2.5V
–0.10
0
10000
20000
30000
SOURCING 5V
SOURCING 2.7V
–0.8
40000
50000
60000 65535
CODE
–1.0
0
5
10
20
25
30
Figure 28. Headroom/Footroom vs. Load Current
7
VDD = 5V
TA = 25°C
EXTERNAL
REFERENCE = 2.5V
VDD = 5V
6 TA = 25°C
GAIN = 2
REFERENCE = 2.5V
5
20
4
15
VOUT (V)
HITS
15
LOAD CURRENT (mA)
Figure 25. TUE vs. Code
25
SINKING 5V
0
13406-033
∆VOUT (V)
SINKING 2.7V
13406-030
TOTAL UNADJUSTED ERROR (% of FSR)
AD5689R-EP
10
FULL SCALE
THREE-QUARTER SCALE
3
MIDSCALE
2
ONE-QUARTER SCALE
1
ZERO SCALE
0
5
560
580
600
620
640
IDD FULL SCALE (V)
–2
–0.06
13406-031
540
–0.04
–0.02
0
0.04
0.06
Figure 29. Source and Sink Capability at 5 V, Gain = 2
Figure 26. IDD Histogram with External Reference, VDD = 5 V
5
VDD = 5V
30 T = 25°C
A
INTERNAL
REFERENCE = 2.5V
25
VDD = 3V
TA = 25°C
4 REFERENCE = 2.5V
GAIN = 1
3
FULL SCALE
VOUT (V)
20
15
2
THREE-QUARTER SCALE
MIDSCALE
1
ONE-QUARTER SCALE
10
0
5
ZERO SCALE
–1
1000
1020
1040
1060
1080
IDD FULL SCALE (V)
1100
1120
1140
13406-032
0
Figure 27. IDD Histogram with Internal Reference, VREF = 2.5 V, Gain = 2
Rev. 0 | Page 14 of 17
–2
–0.06
–0.04
–0.02
0
0.02
0.04
LOAD CURRENT (A)
Figure 30. Source and Sink Capability at 3 V, Gain = 1
0.06
13406-035
HITS
0.02
LOAD CURRENT (A)
13406-034
–1
0
Enhanced Product
AD5689R-EP
SUPPLY CURRENT (mA)
1.4
T
1.2
FULL SCALE
1.0
ZERO CODE
0.8
1
EXTERNAL REFERENCE, FULL SCALE
0.6
0.2
10
60
13406-036
0
–40
VDD = 5V
TA = 25°C
REFERENCE = 2.5V
110
TEMPERATURE (°C)
CH1 10µV
Figure 31. Supply Current vs. Temperature
M1.0s
A CH1
802mV
13406-038
0.4
Figure 33. 0.1 Hz to 10 Hz Output Noise Plot, External Reference
2.5008
T
2.4998
CHANNEL B
TA = 25°C
VDD = 5.25V
INTERNAL REFERENCE
POSITIVE MAJOR CODE TRANSITION
ENERGY = 0.227206nV-sec
2.4993
2.4988
0
2
4
6
VDD = 5V
TA = 25°C
INTERNAL REFERENCE = 2.5V
8
10
TIME (µs)
Figure 32. Digital-to-Analog Glitch Impulse
12
CH1 10µV
M1.0s
A CH1
802mV
13406-039
1
13406-037
VOUT (V)
2.5003
Figure 34. 0.1 Hz to 10 Hz Output Noise Plot, 2.5 V Internal Reference
Rev. 0 | Page 15 of 17
AD5689R-EP
Enhanced Product
0
1600
VDD = 5V
TA = 25°C
1400 INTERNAL REFERENCE = 2.5V
FULL SCALE
MIDSCALE
ZERO SCALE
–10
BANDWIDTH (dB)
NSD (nV/ Hz)
1200
1000
800
600
–20
–30
–40
400
100
1k
10k
100k
1M
FREQUENCY (Hz)
–60
10k
13406-040
0
10
Figure 35. Noise Spectral Density (NSD)
–20
–60
–80
–100
–120
–140
–160
2000 4000 6000 8000 10000 12000 14000 16000 18000 20000
FREQUENCY (Hz)
13406-041
THD (dBV)
–40
0
1M
10M
Figure 37. Multiplying Bandwidth, External Reference = 2.5 V, ±0.1 V p-p,
10 kHz to 10 MHz
VDD = 5V
TA = 25°C
REFERENCE = 2.5V
–180
100k
FREQUENCY (Hz)
20
0
VDD = 5V
TA = 25°C
REFERENCE = 2.5V, ±0.1V p-p
13406-042
–50
200
Figure 36. Total Harmonic Distortion at 1 kHz
Rev. 0 | Page 16 of 17
Enhanced Product
AD5689R-EP
OUTLINE DIMENSIONS
PIN 1
INDICATOR
0.30
0.23
0.18
0.50
BSC
13
PIN 1
INDICATOR
16
1
12
EXPOSED
PAD
1.75
1.60 SQ
1.45
9
TOP VIEW
0.80
0.75
0.70
0.50
0.40
0.30
4
8
0.25 MIN
BOTTOM VIEW
0.05 MAX
0.02 NOM
COPLANARITY
0.08
0.20 REF
SEATING
PLANE
5
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-WEED-6.
08-16-2010-E
3.10
3.00 SQ
2.90
Figure 38. 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ]
3 mm × 3 mm Body, Very Very Thin Quad
(CP-16-22)
Dimensions shown in millimeters
ORDERING GUIDE
Model1
AD5689RTCPZ-EP-RL7
1
Resolution
16 Bits
Temperature Range
−55°C to +125°C
Z = RoHS Compliant Part.
©2015 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D13406-0-8/15(0)
Rev. 0 | Page 17 of 17
Package Description
16-Lead LFCSP_WQ
Package Option
CP-16-22
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