MAXIM MAX509ACAP

19-0155; Rev 2; 1/96
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
____________________________Features
♦
♦
♦
♦
♦
_______________Functional Diagrams
Ordering Information continued on last page.
* Dice are specified at +25°C, DC parameters only.
**Contact factory for availability and processing to MIL-STD-883.
CLR
DOUT
LDAC AGND DGND VSS VDD REFB
DECODE
CONTROL
REFA
OUTA
DAC
REG A
DAC A
INPUT
REG B
DAC
REG B
DAC B
TEMP. RANGE
PIN-PACKAGE
TUE
(LSB)
MAX509ACPP
0°C to +70°C
20 Plastic DIP
±1
MAX509BCPP
MAX509ACWP
MAX509BCWP
MAX509ACAP
MAX509BCAP
MAX509BC/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
20 Plastic DIP
20 Wide SO
20 Wide SO
20 SSOP
20 SSOP
Dice*
±1 1/2
±1
±1 1/2
±1
±1 1/2
±1 1/2
INPUT
REG C
DAC
REG C
DAC C
OUTB 1
20 OUTC
OUTA 2
19 OUTD
V SS 3
DAC
REG D
DAC D
REFC
REFD
Functional Diagrams continued at end of data sheet.
18 V DD
MAX509
17 REFC
REFA 5
16 REFD
AGND 6
15 CS
N.C. 7
OUTD
INPUT
REG D
TOP VIEW
REFB 4
OUTC
CS DIN SCLK
PART
_________________Pin Configurations
OUTB
SR
CONTROL
______________Ordering Information
MAX509
INPUT
REG A
12-BIT
SHIFT
REGISTER
Single +5V or Dual ±5V Supply Operation
Output Buffer Amplifiers Swing Rail-to-Rail
Reference Input Range Includes Both Supply Rails
Calibrated Offset, Gain, and Linearity (1LSB TUE)
10MHz Serial Interface, Compatible with SPI, QSPI
(CPOL = CPHA = 0) and Microwire
♦ Double-Buffered Registers for Synchronous
Updating
♦ Serial Data Output for Daisy-Chaining
♦ Power-On Reset Clears Serial Interface and Sets
All Registers to Zero
14 N.C.
DGND 8
13 SCLK
LDAC 9
12 DIN
DOUT 10
11 CLR
DIP/SO/SSOP
Pin Configurations continued at end of data sheet.
Microwire is a trademark of National Semiconductor. SPI and QSPI are trademarks of Motorola.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX509/MAX510
_______________General Description
The MAX509/MAX510 are quad, serial-input, 8-bit voltage-output digital-to-analog converters (DACs). They
operate with a single +5V supply or dual ±5V supplies.
Internal, precision buffers swing rail-to-rail. The reference input range includes both supply rails.
The MAX509 has four separate reference inputs, allowing each DAC's full-scale range to be set independently.
20-pin DIP, SSOP, and SO packages are available. The
MAX510 is identical to the MAX509 except it has two reference inputs, each shared by two DACs. The MAX510
is housed in space-saving 16-pin DIP and SO packages.
The serial interface is double-buffered: A 12-bit input
shift register is followed by four 8-bit buffer registers and
four 8-bit DAC registers. A 12-bit serial word is used to
load data into each register. Both input and DAC registers can be updated independently or simultaneously
with single software commands. Two additional asynchronous control pins provide simultaneous updating
(LDAC) or clearing (CLR) of input and DAC registers.
The interface is compatible with MicrowireTM and SPI/
QSPITM. All digital inputs and outputs are TTL/CMOS
compatible. A buffered data output provides for readback or daisy-chaining of serial devices.
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
ABSOLUTE MAXIMUM RATINGS
VDD to DGND ..............................................................-0.3V, +6V
VDD to AGND...............................................................-0.3V, +6V
VSS to DGND ...............................................................-6V, +0.3V
VSS to AGND ...............................................................-6V, +0.3V
VDD to VSS .................................................................-0.3V, +12V
Digital Input Voltage to DGND ......................-0.3V, (VDD + 0.3V)
REF_....................................................(VSS - 0.3V), (VDD + 0.3V)
OUT_..............................................................................VDD, VSS
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C) ....842mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C) .........762mW
16-Pin CERDIP (derate 10.00mW/°C above +70°C) ........800mW
20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW
20-Pin Wide SO (derate 10.00mW/°C above +70°C) .......800mW
20-Pin SSOP (derate 10.00mW/°C above +70°C) ............800mW
20-Pin CERDIP (derate 11.11mW/°C above +70°C) ........889mW
Operating Temperature Ranges:
MAX5_ _ _C_ _ .....................................................0°C to +70°C
MAX5_ _ _E_ _ ..................................................-40°C to +85°C
MAX5_ _ _MJ_ ................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note: The outputs may be shorted to VDD, VSS, or AGND if the package power dissipation is not exceeded. Typical short-circuit current
to AGND is 50mA. Do not bias AGND more than +1V above DGND, or more than 2.5V below DGND.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +5V ±10%, VSS = 0V to -5.5V, VREF = 4V, AGND = DGND = 0V, RL = 10kΩ, CL = 100pF, TA = TMIN to TMAX,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
STATIC ACCURACY
Resolution
8
Total Unadjusted Error
TUE
Differential Nonlinearity
DNL
MAX5_ _A
±1
MAX5_ _B
±1.5
VREF = -4V,
VSS = -5V ±10%
MAX5_ _A
±1
MAX5_ _B
±1.5
Guaranteed monotonic
Code = 00 hex,
VSS = 0V
Zero-Code Error
ZCE
Code = 00 hex,
VSS = -5V ±10%
±1
MAX5_ _C
14
MAX5_ _E
16
MAX5_ _M
20
MAX5_ _C
±14
MAX5_ _E
±16
MAX5_ _M
±20
Zero-Code-Error Supply Rejection
Code = 00 hex, VDD = 5V ±10%,
VSS = 0V or -5V ±10%
Zero-Code
Temperature Coefficient
Code = 00 hex
Full-Scale Error
Code = FF hex
Full-Scale-Error Supply Rejection
Full-Scale-Error
Temperature Coefficient
2
Bits
VREF = +4V,
VSS = 0V or -5V ±10%
Code = FF hex,
VDD = +5V ±10%,
VSS = 0V or -5V ±10%
Code = FF hex
1
2
±10
±14
1
MAX5_ _E
1
8
MAX5_ _M
1
12
_______________________________________________________________________________________
LSB
mV
mV
µV/°C
MAX5_ _C
±10
LSB
mV
4
mV
µV/°C
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
MAX509/MAX510
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±10%, VSS = 0V to -5.5V, VREF = 4V, AGND = DGND = 0V, RL = 10kΩ, CL = 100pF, TA = TMIN to TMAX,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VDD
V
REFERENCE INPUTS
Input Voltage Range
VSS
MAX509
16
24
MAX510
8
12
Input Resistance (Note 1)
Code = 55 hex
Input Capacitance (Note 2)
Code = 00 hex
Channel-to-Channel Isolation
(Note 3)
-60
dB
AC Feedthrough
(Note 4)
-70
dB
MAX509
15
MAX510
30
kΩ
pF
DAC OUTPUTS
Full-Scale Output Voltage
VSS
Resistive Load
VREF = 4V, load regulation ≤ 1/4LSB
2
VREF = -4V, VSS = -5V ±10%,
load regulation ≤ 1/4LSB
2
VREF = VDD MAX5_ _C/E,
load regulation ≤ 1LSB
10
VREF = VDD MAX5_ _M,
load regulation ≤ 2LSB
10
VDD
V
kΩ
DIGITAL INPUTS
Input High Voltage
VIH
Input Low Voltage
VIL
Input Current
IIN
Input Capacitance
2.4
V
0.8
V
VIN = 0V or VDD
1.0
µA
CIN
(Note 5)
10
pF
Output High Voltage
VOH
ISOURCE = 0.2mA
Output Low Voltage
VOL
ISINK = 1.6mA
DIGITAL OUTPUTS
VDD - 0.5
V
0.4
V
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Positive and negative
MAX5_ _C
1.0
MAX5_ _E
0.7
MAX5_ _M
0.5
V/µs
Output Settling Time (Note 6)
To 1/2LSB, 10kΩ II 100pF load
6
µs
Digital Feedthrough
Code = 00 hex, all digital inputs
from 0V to VDD
5
nV-s
Digital-to-Analog Glitch Impulse
Code 128➝127
12
nV-s
Signal-to-Noise + Distortion Ratio
VREF = 4Vp-p at 1kHz, VDD = 5V,
code = FF hex
87
VREF = 4Vp-p at 20kHz, VSS = -5V ±10%
74
VREF = 0.5Vp-p, 3dB bandwidth
1
60
Multiplying Bandwidth
Wideband Amplifier Noise
SINAD
dB
MHz
µVRMS
_______________________________________________________________________________________
3
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±10%, VSS = 0V to -5.5V, VREF = 4V, AGND = DGND = 0V, RL = 10kΩ, CL = 100pF, TA = TMIN to TMAX,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
POWER SUPPLIES
Positive Supply Voltage
Negative Supply Voltage
VDD
VSS
For specified performance
For specified performance
Positive Supply Current
IDD
Outputs unloaded, all
digital inputs = 0V or VDD
Negative Supply Current
ISS
VSS = -5V ±10%, outputs
unloaded, all digital
inputs = 0V or VDD
MIN
TYP
MAX
UNITS
V
V
MAX5_ _C/E
5
5.5
0
10
MAX5_ _M
5
12
MAX5_ _C/E
5
10
MAX5_ _M
5
12
4.5
-5.5
mA
mA
Note 1: Input resistance is code dependent. The lowest input resistance occurs at code = 55 hex.
Note 2: Input capacitance is code dependent. The highest input capacitance occurs at code = 00 hex.
Note 3: VREF = 4Vp-p, 10kHz. Channel-to-channel isolation is measured by setting the code of one DAC to FF hex and setting the
code of all other DACs to 00 hex.
Note 4: VREF = 4Vp-p, 10kHz. DAC code = 00 hex.
Note 5: Guaranteed by design.
Note 6: Output settling time is measured by taking the code from 00 hex to FF hex, and from FF hex to 00 hex.
TIMING CHARACTERISTICS
(VDD = +5V ±10%, VSS = 0V to -5V, VREF = 4V, AGND = DGND = 0V, CL = 50pF, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
LDAC Pulse Width Low
tLDW
CS Rise to LDAC Fall Setup Time
tCLL
CLR Pulse Width Low
tCLW
MIN
TYP
MAX5_ _C/E
MAX5_ _M
CONDITIONS
40
50
20
25
(Notes 7, 8)
MAX5_ _C/E
MAX5_ _M
0
40
50
20
25
MAX5_ _C/E
MAX5_ _M
40
50
0
40
0
40
50
0
MAX
UNITS
ns
ns
ns
SERIAL INTERFACE TIMING
CS Fall to SCLK Setup Time
tCSS
SCLK Fall to CS Rise Hold Time
SCLK Rise to CS Rise Hold Time
SCLK Fall to CS Fall Hold Time
tCSH2
tCSH1
tCSH0
DIN to SCLK Rise Setup Time
tDS
DIN to SCLK Rise Hold Time
tDH
SCLK Clock Frequency
fCLK
SCLK Pulse Width High
tCH
SCLK Pulse Width Low
tCL
SCLK to DOUT Valid
tDO
(Note 9)
(Note 7)
MAX5_ _C/E
MAX5_ _M
MAX5_ _C/E
MAX5_ _M
MAX5_ _C/E
MAX5_ _M
MAX5_ _C/E
MAX5_ _M
MAX5_ _C/E
MAX5_ _M
ns
ns
ns
ns
ns
ns
20
20
40
50
40
50
10
10
Note 7: Guaranteed by design.
Note 8: If LDAC is activated prior to CS's rising edge, it must stay low for tLDW or longer after CS goes high.
Note 9: Minimum delay from 12th clock cycle to CS rise.
4
_______________________________________________________________________________________
12.5
10
MHz
ns
ns
100
100
ns
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
MAX509/MAX510
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
OUTPUT SOURCE CURRENT
vs. OUTPUT VOLTAGE
VDD = VREF = +5V
VSS = GND
DIGITAL INPUT = FF HEX
-20
6
SUPPLY CURRENT (mA)
6
-15
-10
4
VDD = VREF = +5V
VSS = GND = 0V
ALL DIGITAL INPUTS = 00 HEX
0
3.6
1.2
1.0
0.8
3.8
4.0
4.2
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
VDD = +5V
ALL LOGIC
INPUTS = +5V
-20
FREQ = 20kHz
-75
THD + NOISE (dB)
0.1%
-65
-70
0
1
2
3
4
0.1%
VREF = 1Vp-p
0
-30
VDD = +5V
VSS = AGND
VREF = 2.5VDC + 0.5Vp-p SINE WAVE
1M
6
8
10
10
10M
-20
-30
VDD = +5V
VSS = AGND
VREF = 2.5VDC + 0.05Vp-p SINE WAVE
1k
10k
100k
FREQUENCY (Hz)
1M
1k
10k
100k
REFERENCE VOLTAGE INPUT
FREQUENCY RESPONSE
-10
-40
100
REFERENCE FREQUENCY (Hz)
MAX509-FG07
0
RELATIVE OUTPUT (dB)
-20
100k
4
REFERENCE VOLTAGE INPUT
FREQUENCY RESPONSE
-10
FREQUENCY (Hz)
2
REFERENCE AMPLITUDE (Vp-p)
MAX509-FG06
0
0.01%
VREF = 4Vp-p
-90
5
REFERENCE VOLTAGE INPUT
FREQUENCY RESPONSE
10k
VREF = 8Vp-p
-80
0
RELATIVE OUTPUT (dB)
-3 -2 -1
1%
-60
-85
VREF VOLTAGE (V)
1k
-50
-70
0.01%
-90
-40
-40
FREQ = 1kHz
-80
0
-5 -4
VDD = +5V
VSS = -5V
INPUT CODE = FF HEX
FREQ = SWEPT
-30
-55
-60
10%
1%
THD + NOISE (%)
MAX509-FG03
-45
THD + NOISE (dB)
IDD (mA)
2
RELATIVE OUTPUT (dB)
THD + NOISE AT DAC OUTPUT
vs. REFERENCE FREQUENCY
VDD = +5V
VSS = -5V
INPUT CODE = FF HEX
-50
3
1
TEMPERATURE (°C)
-40
VSS = 0V
VSS = -5V
20 40 60 80 100 120 140
-60 -40 -20 0
5.0
4.8
THD + NOISE AT DAC OUTPUT
vs. REFERENCE AMPLITUDE
6
4
4.6
VOUT (V)
VOUT - VSS (V)
5
4.4
MAX509-FG04
0.6
0.4
VDD = +5.5V
VSS = -5.5V
VREF = -4.75
ALL DIGITAL INPUTS = +5V
2
1
0
0.2
3
-5
0
0
IDD
ISS
MAX509-FG08
2
5
4
THD + NOISE (%)
IOUT (mA)
IOUT (mA)
8
MAX509-FG05
10
7
MAX509-FG10
-25
MAX509-FG01
12
MAX509-FG02
OUTPUT SINK CURRENT
vs. (VOUT - VSS)
-10
-20
-30
VDD = +5V
VSS = -5V
VREF = 2.5VDC + 4Vp-p SINE WAVE
-40
10M
1k
10k
100k
1M
10M
FREQUENCY (Hz)
_______________________________________________________________________________________
5
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
ZERO-CODE ERROR
vs. NEGATIVE SUPPLY VOLTAGE
VDD = +5V
VREF = +4V
4.8
REFERENCE FEEDTHROUGH AT 40kHz
WORST-CASE 1LSB DIGITAL STEP CHANGE
MAX509-FG09
5.0
ZERO-CODE ERROR (mV)
MAX509/MAX510
Quad, Serial 8-DACs
with Rail-to-Rail Outputs
2V
20mV
4.6
A
A
4.4
4.2
4.0
B
B
3.8
3.6
200nS
3.4
0
-1
-3
-2
-4
-5
A = REFA, 10Vp-p
B = OUTA, 100µV/div, UNLOADED
TIMEBASE = 10µs/div
VDD = +5V, VSS = -5V
CODE = ALL 0s
A = CS, 2V/div
B = OUTA, 20mV ˜
TIMEBASE = 200ns/div
-6
VSS (V)
REFERENCE FEEDTHROUGH AT 10kHz
REFERENCE FEEDTHROUGH AT 4kHz
5V
50µV
A
B
REFERENCE FEEDTHROUGH AT 400Hz
10
A
A
B
B
100µS
A = REFA, 10Vp-p
B = OUTA, 50µV/div, UNLOADED
TIMEBASE = 50µs/div
6
A = REFA, 10Vp-p
B = OUTA, 50µV/div, UNLOADED
TIMEBASE = 100µs/div
A = REFA, 10Vp-p
B = OUTA, 50µV/div, UNLOADED
TIMEBASE = 1ms/div
_______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
POSITIVE SETTLING TIME
(VSS = AGND OR -5V)
CLOCK FEEDTHROUGH
5V
100mV
A
A
B
B
1µS
A = DIGITAL INPUT, 5V/div
B = OUT_ , 2V/div
TIMEBASE = 1µs/div
VDD = +5V
REF_ = +4V
ALL BITS OFF TO ALL BITS ON
RL = 10kΩ, CL = 100pF
A = SCLK, 333kHz
B = OUT_, 10mV/div
TIMEBASE = 2µs/div
NEGATIVE SETTLING TIME
(VSS = AGND)
5V
NEGATIVE SETTLING TIME
(VSS = -5V)
100mV
5V
100mV
A
A
B
B
1µS
A = DIGITAL INPUT, 5V/div
B = OUT_ , 2V/div
TIMEBASE = 1µs/div
VDD = +5V
REF_ = +4V
ALL BITS ON TO ALL BITS OFF
RL = 10kΩ, CL = 100pF
1µS
A = DIGITAL INPUT, 5V/div
B = OUT_ , 2V/div
TIMEBASE = 1µs/div
VDD = +5V
REF_ = +4V
ALL BITS ON TO ALL BITS OFF
RL = 10kΩ, CL = 100pF
_______________________________________________________________________________________
7
MAX509/MAX510
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
______________________________________________________________Pin Description
PIN
MAX509 MAX510
8
NAME
FUNCTION
1
1
OUTB
DAC B Voltage Output
2
2
OUTA
DAC A Voltage Output
3
3
VSS
4
–
REFB
–
4
REFAB
5
–
REFA
Reference Voltage Input for DAC A
6
5
AGND
Analog Ground
7, 14
–
N.C.
8
6
DGND
Digital Ground
9
7
LDAC
Load DAC Input (active low). Driving this asynchronous input low (level sensitive)
transfers the contents of each input latch to its respective DAC latch.
10
8
DOUT
Serial Data Output. Can sink and source current. Data at DOUT is adjustable to be
clocked out on rising or falling edge of SCLK.
11
9
CLR
Clear DAC input (active low). Driving CLR low causes an asynchronous clear of input
and DAC registers and sets all DAC outputs to zero.
12
10
DIN
Serial Data Input. TTL/CMOS-compatible input. Data is clocked into DIN on the
rising edge of SCLK. CS must be low for data to be clocked in.
13
11
SCLK
Serial Clock Input. Data is clocked in on the rising edge and clocked out on either the
rising (default) or the falling edge.
15
12
CS
Chip-Select Input (active low). Data is shifted in and out when CS is low. Programming
commands are executed when CS rises.
16
–
REFD
–
13
REFCD
17
–
REFC
Reference Voltage Input for DAC C
18
14
VDD
Positive Power Supply, +5V ±10%
19
15
OUTD
DAC D Output Voltage
20
16
OUTC
DAC C Output Voltage
Negative Power Supply, 0V to -5V ±10%. Connect to AGND for single-supply operation.
Reference Voltage Input for DAC B
Reference Voltage Input for DACs A and B
Not Internally Connected
Reference Voltage Input for DAC D
Reference Voltage Input for DACs C and D
_______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
Serial Interface
At power-on, the serial interface and all DACs are
cleared and set to code zero. The serial data output
(DOUT) is set to transition on SCLK's rising edge.
The MAX509/MAX510 communicate with microprocessors through a synchronous, full-duplex, 3-wire interface (Figure 1). Data is sent MSB first and can be
transmitted in one 4-bit and one 8-bit (byte) packet or
in one 12-bit word. If a 16-bit control word is used, the
first four bits are ignored. A 4-wire interface adds a line
for LDAC and allows asynchronous updating. The serial
clock (SCLK) synchronizes the data transfer. Data is
transmitted and received simultaneously.
Figure 2 shows a detailed serial interface timing.
Please note that the clock should be low if it is stopped
between updates. DOUT does not go into a highimpedance state if the clock or CS is high.
Serial data is clocked into the data registers in MSBfirst format, with the address and configuration information preceding the actual DAC data. Data is
clocked in on SCLK's rising edge while CS is low. Data
at DOUT is clocked out 12 clock cycles later, either at
SCLK's rising edge (default or mode 1) or falling edge
(mode 0).
Chip select (CS) must be low to enable the DAC. If CS
is high, the interface is disabled and DOUT remains
unchanged. CS must go low at least 40ns before the
first rising edge of the clock pulse to properly clock in
the first bit. With CS low, data is clocked into the
MAX509/MAX510's internal shift register on the rising
edge of the external serial clock. SCLK can be driven
at rates up to 12.5MHz.
INSTRUCTION
EXECUTED
CS
•••
•••
SCLK
•••
DIN
A1 A0 C1 C0
D7 D6 D5 D4 D3 D2 D1 D0
MSB
A1
A1 A0 C1 C0
D7 D6 D5 D4 D3 D2
LSB
MSB
DACA
DOUT
MODE 1
(DEFAULT)
D1 D0
A1
LSB
DACD
•••
A1
A0 C1 C0
D7
D6 D5 D4 D3 D2 D1 D0
A1
A1
A0 C1 C0
DATA FROM PREVIOUS DATA INPUT
D7
D6 D5 D4 D3 D2 D1 D0
A1
DATA FROM PREVIOUS DATA INPUT
•••
DOUT
MODE 0
A1 A0 C1 C0
D7
D6 D5 D4 D3 D2 D1 D0
A1
A1
A0 C1 C0
D7
D6 D5 D4 D3 D2 D1 D0
A1
Figure 1. MAX509/MAX510 3-Wire Interface Timing
_______________________________________________________________________________________
9
MAX509/MAX510
_______________Detailed Description
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
tCLL
CS
tCSH2
•••
tCSS
tCH
tCSH0
•••
SCLK
tCL
tDS
tCSH1
tDH
•••
DIN
tDO
•••
DOUT
•••
LDAC
NOTE: TIMING SPECIFICATION tCLL IS RECOMMENDED TO MINIMIZE OUTPUT GLITCH, BUT IS NOT MANDATORY.
tLDW
Figure 2. Detailed Serial Interface Timing (Mode 0 Shown)
Table 1. Serial-Interface Programming Commands
12-Bit Serial Word
10
LDAC
Function
A1
A0
C1
C0
D7 . . . . . . . . D0
0
0
1
1
0
1
0
1
0
0
0
0
1
1
1
1
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
1
1
1
1
Load DAC A input register, DAC output unchanged.
Load DAC B input register, DAC output unchanged.
Load DAC C input register, DAC output unchanged.
Load DAC D input register, DAC output unchanged.
0
0
1
1
0
1
0
1
1
1
1
1
1
1
1
1
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
8-Bit DAC Data
1
1
1
1
Load input and DAC register A.
Load input and DAC register B.
Load input and DAC register C.
Load input and DAC register D.
X
0
0
0
8-Bit DAC Data
X
Update all DACs from shift register.
X
1
0
0
XXXXXXXX
X
No Operation (NOP), shifts data in shift register.
0
X
1
0
XXXXXXXX
X
“LDAC” Command, all DACs updated from respective
input registers.
1
1
1
0
XXXXXXXX
X
Mode 1, DOUT clocked out on rising edge of SCLK
(default). All DACs updated from respective input
registers.
1
0
1
0
XXXXXXXX
X
Mode 0, DOUT clocked out on falling edge of SCLK.
All DACs updated from input registers.
______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
This is the first bit shifted in
LSB
MSB
DOUT
A1 A0C1 C0 D7D6
Control and
Address bits
●●●
D1 D0
DIN
Update All DACs from Shift Registers
A1
A0
C1
C0
x
0
0
0
D7
D6
D5
D4
D3
D2
D1
D0
8-Bit DAC Data
(LDAC = x)
All four DAC registers are updated with shift-register
data. This command allows all DACs to be set to any
analog value within the reference range. This command
can be used to substitute CLR if code 00 hex is programmed, which clears all DACs.
No Operation (NOP)
8-bit DAC data
Figure 3. Serial Input Format
A1
A0
C1
C0
D7
D6
D5
D4
D3
D2
D1
D0
x
1
0
0
x
x
x
x
x
x
x
x
(LDAC = x)
Load Input Register, DAC Registers Unchanged
(Single Update Operation)
A1 A0
Address
C1
0
C0
1
D7
D6
D5
D4
D3
D2
D1
D0
8-Bit Data
(LDAC = H)
When performing a single update operation, A1 and A0
select the respective input register. At the rising edge
of CS, the selected input register is loaded with the current shift-register data. All DAC outputs remain
unchanged. This preloads individual data in the input
register without changing the DAC outputs.
Load Input and DAC Registers
A1 A0
Address
C1
1
C0
1
D7
D6
D5
D4 D3 D2
8-Bit Data
D1
D0
(LDAC = H)
This command directly loads the selected DAC register
at CS's rising edge. A1 and A0 set the DAC address.
Current shift-register data is placed in the selected
input and DAC registers.
For example, to load all four DAC registers simultaneously
with individual settings (DAC A = 1V, DAC B = 2V, DAC
C = 3V and DAC D = 4V), five commands are required.
First, perform four single input register update operations. Next, perform an “LDAC” command as a fifth
command. All DACs will be updated from their respective input registers at the rising edge of CS.
The NOP command (no operation) allows data to be shifted through the MAX509/MAX510 shift register without
affecting the input or DAC registers. This is useful in daisy
chaining (also see the Daisy-Chaining Devices section).
For this command, the data bits are "Don't Cares." As an
example, three MAX509/MAX510s are daisy-chained (A, B
and C), and DAC A and DAC C need to be updated. The
36-bit-wide command would consist of one 12-bit word for
device C, followed by an NOP instruction for device B and
a third 12-bit word with data for device A. At CS's rising
edge, only device B is not updated.
“LDAC” Command (Software)
A1
A0
C1
C0
D7
D6
D5
D4
D3
D2
D1
D0
0
x
1
0
x
x
x
x
x
x
x
x
(LDAC = x)
All DAC registers are updated with the contents of their
respective input registers at CS's rising edge. With the
exception of using CS to execute, this performs the
same function as the asynchronous LDAC.
Set DOUT Phase – SCLK Rising (Mode 1, Default)
A1
A0
C1
C0
D7
D6
D5
D4
D3
D2
D1
D0
1
1
1
0
x
x
x
x
x
x
x
x
(LDAC = x)
Mode 1 resets the serial output DOUT to transition at
SCLK's rising edge. This is the MAX509/MAX510’s
default setting after the supply voltage has been
applied.
The command also loads all DAC registers with the contents of their respective input registers, and is identical to
the “LDAC” command.
______________________________________________________________________________________
11
MAX509/MAX510
Serial Input Data Format and Control Codes
The 12-bit serial input format shown in Figure 3 comprises two DAC address bits (A1, A0), two control bits
(C1, C0) and eight bits of data (D0...D7).
The 4-bit address/control code configures the DAC as
shown in Table 1.
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
Set DOUT Phase – SCLK Falling (Mode 0)
A1
A0
C1
C0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
x
x
x
x
x
x
x
x
(LDAC = x)
This command resets DOUT to transition at SCLK's falling
edge. Once this command is issued, the phase of DOUT is
latched and will not change except on power-up or if the
specific command is issued that sets the phase to rising
edge.
The same command also updates all DAC registers with
the contents of their respective input registers, identical to
the “LDAC” command.
LDAC Operation (Hardware)
LDAC is typically used in 4-wire interfaces (Figure 7).
LDAC allows asynchronous hardware control of the DAC
outputs and is level-sensitive. With LDAC low, the DAC registers are transparent and any time an input register is
updated, the DAC output immediately follows.
Clear DACs with CLR
Strobing the CLR pin low causes an asynchronous clear of
input and DAC registers and sets all DAC outputs to zero.
Similar to the LDAC pin, CLR can be invoked at any time,
typically when the device is not selected (CS = H). When
the DAC data is all zeros, this function is equivalent to the
"Update all DACs from Shift Registers" command.
Digital Inputs and Outputs
Digital inputs and outputs are compatible with both TTL and
5V CMOS logic. The power-supply current (IDD) depends
on the input logic levels. Using CMOS logic to drive CS,
SCLK, DIN, CLR and LDAC turns off the internal level translators and minimizes supply currents.
Serial Data Output
DOUT is the output of the internal shift register. DOUT can be
programmed to clock out data on SCLK's falling edge (mode
0) or rising edge (mode 1). In mode 0, output data lags the
input data by 12.5 clock cycles, maintaining compatibility with
Microwire, SPI, and QSPI. In mode 1, output data lags the input
by 12 clock cycles. On power-up, DOUT defaults to mode 1
timing. DOUT never three-states; it always actively drives either
high or low and remains unchanged when CS is high.
Interfacing to the Microprocessor
The MAX509/MAX510 are Microwire, SPI, and QSPI compatible. For SPI and QSPI, clear the CPOL and CPHA configuration bits (CPOL = CPHA = 0). The SPI/QSPI CPOL = CPHA
= 1 configuration can also be used if the DOUT output is
ignored.
12
SCLK
SK
MAX509 DIN
MAX510
SO
DOUT
SI
CS
I/0
MICROWIRE
PORT
THE DOUT-SI CONNECTION IS NOT REQUIRED FOR WRITING TO THE
MAX509/MAX510, BUT MAY BE USED FOR READ-BACK PURPOSES.
Figure 4. Connections for Microwire
DOUT
MISO
MAX509 DIN
MAX510
MOSI
SCLK
CS
SPI
PORT
SCK
I/0
CPOL = 0, CPHA = 0
THE DOUT-MISO CONNECTION IS NOT REQUIRED FOR WRITING TO THE
MAX509/MAX510, BUT MAY BE USED FOR READ-BACK PURPOSES.
Figure 5. Connections for SPI
The MAX509/MAX510 can interface with Intel's
80C5X/80C3X family in mode 0 if the SCLK clock polarity is
inverted. More universally, if a serial port is not available,
three lines from one of the parallel ports can be used for bit
manipulation.
Digital feedthrough at the voltage outputs is greatly minimized by operating the serial clock only to update the registers. Also see the Clock Feedthrough photo in the Typical
Operating Characteristics section. The clock idle state is low.
Daisy-Chaining Devices
Any number of MAX509/MAX510s can be daisy-chained by
connecting the DOUT pin of one device to the DIN pin of the
following device in the chain. The NOP instruction (Table 1)
allows data to be passed from DIN to DOUT without changing the input or DAC registers of the passing device. A threewire interface updates daisy-chained or individual
MAX509/MAX510s simultaneously by bringing CS high.
______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
MAX509
MAX509
SCLK MAX510
SCLK MAX510
DIN
DIN
DIN
CS
CS
DOUT
DOUT
CS
MAX509/MAX510
MAX509
SCLK MAX510
SCLK
DOUT
DIN
CS
TO OTHER
SERIAL DEVICES
MAX509
SCLK
SCLK MAX510
DIN
DIN
CS
CS
Figure 6. Daisy-chained or individual MAX509/MAX510s are simultaneously updated by bringing CS high. Only three wires are
required.
DIN
SCLK
LDAC
CS1
TO OTHER
SERIAL
DEVICES
CS2
CS3
CS
CS
CS
LDAC MAX509
LDAC MAX509
MAX510
MAX510
LDAC MAX509
MAX510
SCLK
SCLK
SCLK
DIN
DIN
DIN
Figure 7. Multiple MAX509/MAX510 DACs sharing one DIN line. Simultaneously update by strobing LDAC, or specifically update by
enabling individual CS.
______________________________________________________________________________________
13
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
R
2R
R
R
OUT_
2R
2R
2R
2R
D0
D5
D6
D7
REF_
AGND
SHOWN FOR ALL 1 ON DAC
Figure 8. DAC Simplified Circuit Diagram
If multiple devices share a common DIN line, Figure 7's
configuration provides simultaneous update by strobing LDAC low. CS1, CS2, CS3... are driven separately,
thus controlling which data are written to devices 1, 2, 3....
Analog Section
DAC Operation
The MAX509/MAX510 contain four matched voltageoutput DACs. The DACs are inverted R-2R ladder networks that convert 8-bit digital words into equivalent
analog output voltages in proportion to the applied reference voltages. Each DAC in the MAX509 has a separate reference input, while the two reference inputs in
the MAX510 each share a pair of DACs. The two reference inputs permit different full-scale output voltage
ranges for each pair of DACs. A simplified diagram of
one of the four DACs is shown in Figure 8.
Reference Input
The MAX509/MAX510 can be used for multiplying
applications. The reference accepts both DC and AC
signals. The voltage at each REF input sets the fullscale output voltage for its respective DAC(s). If the reference voltage is positive, both the MAX509 and
MAX510 can be operated from a single supply. If dual
supplies are used, the reference input can vary from
VSS to VDD, but is always referred to AGND. The input
impedance at REF is code dependent, with the lowest
value (16kΩ for the MAX509 and 8kΩ for the MAX510)
occurring when the input code is 55 hex or 0101 0101.
The maximum value, practically infinity, occurs when
the input code is 00 hex. Since the REF input impedance is code dependent, the DAC's reference sources
must have a low output impedance (no more than 32Ω
for the MAX509 and 16Ω for the MAX510) to maintain
output linearity. The REF input capacitance is also code
14
dependent: 15pF typical for the MAX509 and 30pF
typical for the MAX510.
The output voltage for any DAC can be represented by
a digitally programmable voltage source as:
VOUT = (NB x VREF) / 256
where NB is the numerical value of the DAC's binary
input code.
Output Buffer Amplifiers
All MAX509/MAX510 voltage outputs are internally
buffered by precision unity-gain followers that slew at
up to 1V/µs. The outputs can swing from VSS to VDD.
With a 0V to +4V (or +4V to 0V) output transition, the
amplifier outputs will settle to 1/2LSB in typically 6µs
when loaded with 10kΩ in parallel with 100pF.
The buffer amplifiers are stable with any combination of
resistive loads ≥ 2kΩ and capacitive loads ≤ 300pF.
__________Applications Information
Power Supply and
Reference Operating Ranges
The MAX509/MAX510 are fully specified to operate with
VDD = 5V ±10% and VSS = 0V to -5.5V. 8-bit performance is guaranteed for both single- and dual-supply
operation. The zero-code output error is less than 14mV
when operating from a single +5V supply.
The DACs work well with reference voltages from VSS
to VDD. The reference voltage is referred to AGND.
The preferred power-up sequence is to apply VSS and
then VDD, but bringing up both supplies at the same
time is also acceptable. In either case, the voltage
applied to REF should not exceed VDD during powerup or at any other time. If proper power sequencing is
not possible, connect an external Schottky diode
between VSS and AGND to ensure compliance with the
Absolute Maximum Ratings. Do not apply signals to
the digital inputs before the device is fully powered up.
Power-Supply Bypassing
and Ground Management
In single-supply operation (AGND = DGND = VSS =
0V), AGND, DGND and V SS should be connected
together in a "star" ground at the chip. This ground
should then return to the highest quality ground available. Bypass VDD with a 0.1µF capacitor, located as
close to VDD and DGND as possible. In dual-supply
operation, bypass VSS to AGND with 0.1µF.
Careful PC board layout minimizes crosstalk among
DAC outputs, reference inputs, and digital inputs.
Figures 9 and 10 show suggested circuit board layouts
to minimize crosstalk.
______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
MAX509/MAX510
SYSTEM GND
SYSTEM GND
OUTC
OUTB
OUTD
OUTA
OUTC
OUTB
VDD
VSS
OUTD
OUTA
REFC
REFB
VDD
REFD
REFA
REFCD
VSS
REFAB
AGND
AGND
Figure 9. Suggested MAX509 PC Board Layout for Minimizing
Crosstalk (Bottom View)
Figure 10. Suggested MAX510 PC Board Layout for Minimizing
Crosstalk (Bottom View)
Unipolar-Output, 2-Quadrant Multiplication
Bipolar-Output, 2-Quadrant Multiplication
In unipolar operation, the output voltages and the reference input(s) are the same polarity. Figures 11 and 12
show the MAX509/MAX510 unipolar configurations.
Both devices can be operated from a single supply if
the reference inputs are positive. If dual supplies are
used, the reference input can vary from VSS to VDD.
Table 2 shows the unipolar code.
Bipolar-output, 2-quadrant multiplication is achieved by
offsetting AGND positively or negatively. Table 3 shows
the bipolar code.
AGND can be biased above DGND to provide an arbitrary nonzero output voltage for a 0 input code, as
shown in Figure 13. The output voltage at OUTA is:
VOUTA = VBIAS + (NB/256)(VIN),
Table 2. Unipolar Code Table
Table 3. Bipolar Code Table
DAC CONTENTS
DAC CONTENTS
ANALOG
OUTPUT
MSB
LSB
1111
1111
255
+VREF ––––
256
1000
0001
1000
MSB
LSB
ANALOG
OUTPUT
(
)
(
)
(
)
1111
1111
––––
+VREF 127
128
129
+VREF ––––
256
(
)
1000
0001
1
+VREF ––––
128
128 = +V–REF
–––
+VREF ––––
256
2
1000
0000
0V
0000
0111
1111
1
-VREF ––––
128
1111
127
+VREF ––––
256
0000
0001
127
-VREF ––––
128
0000
0001
1
+VREF ––––
256
0000
0000
0000
0000
0V
0111
(
)
(
(
)
)
(
(
)
(
)
)
128 = -V
-VREF ––––
REF
128
1 )
Note: 1LSB = (VREF) (2-8) = +VREF (––––
256
______________________________________________________________________________________
15
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
REFERENCE INPUTS (VSS TO VDD)
5
4
17
16
REFA REFB REFC REFD
+5V
18
VDD
+5V
18
VDD
5
REFA
2
DAC A
OUTA
2
DAC A
VIN
6 AGND
1
OUTB
DAC B
SERIAL
INTERFACE
NOT SHOWN
MAX509
VBIAS
20
DAC C
OUTA
VSS
3
DGND
8
-5V (OR GND)
OUTC
+5V
19
DAC D
OUTD
VSS
3
MAX509
14
VDD
4
REFAB
2
DGND
8
AGND
6
DAC A
VIN
-5V (OR GND)
OUTA
5 AGND
MAX510
Figure 11. MAX509 Unipolar Output Circuit
VBIAS
VSS
3
DGND
6
-5V (OR GND)
REFERENCE INPUTS (VSS TO VDD)
4
REFAB
+5V
14
VDD
SERIAL INTERFACE NOT SHOWN
2
DAC A
OUTA
1
OUTB
DAC B
SERIAL
INTERFACE
NOT SHOWN
16
DAC C
OUTC
15
DAC D
VSS
3
OUTD
REFCD
13
AGND
5
-5V (OR GND)
MAX510
Figure 12. MAX510 Unipolar Output Circuit
16
DGND
6
Figure 13. MAX509/MAX510 AGND Bias Circuits (Positive
Offset)
where NB represents the digital input word. Since
AGND is common to all four DACs, all outputs will be
offset by VBIAS in the same manner. Do not bias AGND
more than +1V above DGND, or more than 2.5V below
DGND.
Figures 14 and 15 illustrate the generation of negative
offsets with bipolar outputs. In these circuits, AGND is
biased negatively (up to -2.5V with respect to DGND) to
provide an arbitrary negative output voltage for a 0
input code. The output voltage at OUTA is:
OUTA = -(R2/R1)(2.5V) + (NB/256)(2.5V)(R2/R1+1)
where NB represents the digital input word. Since
AGND is common to all four DACs, all outputs will be
offset by V BIAS in the same manner. Table 3, with
VREF = 2.5V, shows the digital code vs. output voltage
for Figure 14 and 15's circuits with R1 = R2. The
ICL7612 op amp is chosen because its common-mode
range extends to both supply rails.
______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
5
+5V
4
17
MAX509/MAX510
+5V
REFERENCE INPUTS
16
0.1µF
18
VDD
SERIAL
INTERFACE
NOT SHOWN
MAX509
0.1µF
2
DAC A
R1
330k
0.1%
MAX873
R2
330k
0.1%
1
DAC B
+2.5V
OUTA
OUTB
+5V
0.1µF
2
20
DAC C
7
OUTC
6
3
ICL7611A
8
19
OUTD
DAC D
1
0.1µF
VSS
3
-5V
AGND
DGND
6
8
0.1µF
-5V
Figure 14. MAX509 AGND Bias Circuit (Negative Offset)
4-Quadrant Multiplication
Each DAC output may be configured for 4-quadrant
multiplication using Figure 16 and 17's circuit. One op
amp and two resistors are required per channel. With
R1 = R2:
VOUT = VREF [2(NB/256)-1]
where NB represents the digital word in DAC register A.
The recommended value for resistors R1 and R2 is
330kΩ (±0.1%). Table 3 shows the digital code vs. output voltage for Figure 16 and 17's circuit.
______________________________________________________________________________________
17
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
+5V
REFERENCE INPUTS
4
+5V
13
14
0.1µF
VDD
SERIAL
INTERFACE
NOT SHOWN
0.1µF
2
MAX873
4
MAX510
R1
330k
0.1%
6
2
DAC A
R2
330k
0.1%
1
DAC B
+2.5V
OUTA
OUTB
+5V
0.1µF
2
16
DAC C
7
OUTC
6
3
ICL7611A
8
15
DAC D
1
OUTD
0.1µF
VSS
AGND
3
-5V
DGND
6
5
0.1µF
-5V
Figure 15. MAX510 AGND Bias Circuit (Negative Offset)
REFERENCE INPUTS (VSS TO VDD)
5
4
17
+5V
0.1µF
+5V
18
VDD
16
MAX509
ICL7612A*
2
DAC A
R2
R1
0.1µF
VOUT
OUTA
0.1µF
+5V
1
SERIAL
INTERFACE
NOT SHOWN
DAC B
-5V
OUTB
0.1µF
20
DAC C
R1
R2
OUTC
19
DAC D
ICL7612A*
VOUT
OUTD
VSS
3
AGND
6
DGND
8
0.1µF
-5V
0.1µF
*CONNECT ICL7612A PIN 8 TO AGND
AGND OR -5V
Figure 16. MAX509 Bipolar Output Circuit
18
______________________________________________________________________________________
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
MAX509/MAX510
REFERENCE INPUTS
+5V
4
+5V
14
VDD
13
0.1µF
0.1µF
R1
MAX510
R2
2
ICL7612A*
VOUT
DAC A
OUTA
0.1µF
-5V
1
SERIAL
INTERFACE
NOT SHOWN
DAC B
OUTB
+5V
0.1µF
16
DAC C
OUTC
R1
R2
15
ICL7612A*
VOUT
DAC D
OUTD
VSS
3
0.1µF
DGND
6
AGND
5
-5V
0.1µF
*CONNECT ICL7612A PIN 8 TO AGND
AGND OR -5V
Figure 17. MAX510 Bipolar Output Circuit
__Functional Diagrams (continued)
DOUT
CLR
LDAC AGND DGND VSS VDD REFB
DECODE
CONTROL
____Pin Configurations (continued)
REFA
TOP VIEW
MAX509
OUTA
INPUT
REG A
DAC
REG A
DAC A
OUTB 1
16 OUTC
OUTA 2
15 OUTD
V SS 3
OUTB
12-BIT
SHIFT
REGISTER
INPUT
REG B
DAC
REG B
DAC B
OUTC
INPUT
REG C
DAC
REG C
DAC C
INPUT
REG D
DAC
REG D
DAC D
CS DIN SCLK
14 V DD
MAX510
REFC
13 REFCD
AGND 5
12 CS
DGND 6
11 SCLK
LDAC 7
10 DIN
DOUT 8
OUTD
SR
CONTROL
REFAB 4
9
CLR
DIP/Wide SO
REFD
______________________________________________________________________________________
19
MAX509/MAX510
Quad, Serial 8-Bit DACs
with Rail-to-Rail Outputs
_Ordering Information (continued)
PART
TEMP. RANGE
PIN-PACKAGE
TUE
(LSB)
MAX509AEPP
-40°C to +85°C
20 Plastic DIP
±1
___________________Chip Topography
MAX509/MAX510
OUTB
V SS
OUTA
MAX509BEPP
MAX509AEWP
MAX509BEWP
MAX509AEAP
MAX509BEAP
MAX509AMJP
MAX509BMJP
MAX510ACPE
-40°C to +85°C
20 Plastic DIP
±1 1/2
-40°C to +85°C
20 Wide SO
±1
-40°C to +85°C
20 Wide SO
±1 1/2
-40°C to +85°C
20 SSOP
±1
-40°C to +85°C
20 SSOP
±1 1/2
-55°C to +125°C 20 CERDIP**
±1
-55°C to +125°C 20 CERDIP**
±1 1/2
0°C to +70°C
16 Plastic DIP
±1
MAX510BCPE
0°C to +70°C
16 Plastic DIP
±1 1/2
MAX510ACWE
0°C to +70°C
16 Wide SO
±1
MAX510BCWE
0°C to +70°C
16 Wide SO
±1 1/2
MAX510AEPE
-40°C to +85°C
16 Plastic DIP
±1
MAX510BEPE
-40°C to +85°C
16 Plastic DIP
±1 1/2
MAX510AEWE
-40°C to +85°C
16 Wide SO
±1
MAX510BEWE
-40°C to +85°C
16 Wide SO
±1 1/2
MAX510AMJE
-55°C to +125°C 16 CERDIP**
±1
MAX510BMJE
-55°C to +125°C 16 CERDIP**
±1 1/2
**Contact factory for availability and processing to MIL-STD-883.
OUTC
OUTD
V DD
REFC
(REFCD)
REFD
(REFCD)
REFB
(REFAB)
CS
REFA
(REFAB)
0.121"
(3.07mm)
AGND
SCLK
DGND
LDAC
DOUT
CLR
DIN
0.128"
(3.25mm)
NOTE: LABELS IN ( ) ARE FOR MAX510 ONLY.
TRANSISTOR COUNT: 2235;
SUBSTRATE CONNECTED TO VDD.
________________________________________________________Package Information
DIM
A
A1
B
C
D
E
e
H
L
α
e
E
H
INCHES
MAX
MIN
0.078
0.068
0.008
0.002
0.015
0.010
0.009
0.005
0.289
0.278
0.212
0.205
0.0256 BSC
0.311
0.301
0.037
0.022
8˚
0˚
MILLIMETERS
MIN
MAX
1.73
1.99
0.05
0.21
0.25
0.38
0.13
0.22
7.07
7.33
5.20
5.38
0.65 BSC
7.65
7.90
0.55
0.95
0˚
8˚
21-0003A
D
α
A
0.127mm
0.004in.
B
A1
C
L
20-PIN PLASTIC
SHRINK
SMALL-OUTLINE
PACKAGE
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
20 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1996 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.