19-3119; Rev 0; 12/03
±10V, 12-Bit, Serial, Voltage-Output DAC
General Description
The MAX5312 12-bit, serial-interface, digital-to-analog
converter (DAC) provides bipolar ±5V to ±10V outputs
from ±12V to ±15V power-supply voltages, or a unipo-
lar 5V to 10V output from a single 12V to 15V power-
supply voltage.
The MAX5312 features excellent linearity with both inte-
gral nonlinearity (INL) and differential nonlinearity (DNL)
guaranteed to ±1 LSB (max). The device also features
a fast 10µs to 0.5 LSB settling time, and a hardware-
shutdown feature that reduces current consumption to
3.5µA. The output goes to midscale at power-up in
bipolar mode (0V), and to zero scale at power-up in
unipolar mode (0V). A clear input (CLR) asynchronously
clears the DAC register and sets the output to 0V. The
output can be asynchronously updated with the load
DAC (LDAC) input.
The device features a 10MHz SPI™-/QSPI™-/
MICROWIRE™-compatible serial interface that oper-
ates with 3V or 5V logic. Additional features include a
serial-data output (DOUT) for daisy chaining and read-
back functions. The MAX5312 requires a 2V to 5.25V
external reference voltage and is available in a 16-pin
SSOP package that operates over the extended -40°C
to +85°C temperature range.
Features
♦
Unipolar or Bipolar Output-Voltage Ranges
Unipolar: 0 to (+2 x V
REF
) (Single or Dual
Supply)
Bipolar: (-2 x V
REF
) to (+2 x V
REF
) (Dual Supply)
♦
Guaranteed INL
≤
±1 LSB (max)
♦
Guaranteed Monotonic: DNL
≤
±1 LSB (max)
♦
10µs Settling Time to 0.5 LSB
♦
Low 3.5µA Shutdown Current
♦
10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial
Interface
♦
Power-On Reset Sets DAC Output to 0V
♦
Schmitt Trigger Inputs for Direct
Optocoupler Interface
♦
Serial-Data Output Allows Daisy Chaining
of Devices
♦
Small 16-Pin SSOP
MAX5312
Ordering Information
Applications
Motor Control
Industrial Process Controls
Industrial Automation
Automatic Test Equipment (ATE)
Analog I/O Boards
Data-Acquisition Systems
PART
MAX5312EAE
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
16 SSOP
Pin Configuration
TOP VIEW
SCLK 1
DIN 2
CS 3
DOUT 4
DGND 5
V
CC
6
SHDN 7
UNI/BIP 8
16 LDAC
15 CLR
14 V
DD
MAX5312
13 REF
12 V
SS
11 AGND
10 SGND
9
OUT
SSOP
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
±10V, 12-Bit, Serial, Voltage-Output DAC
MAX5312
ABSOLUTE MAXIMUM RATINGS
V
DD
to AGND..........................................................-0.3V to +17V
V
SS
to AGND ..........................................................-17V to +0.3V
V
DD
to V
SS
..........................................................................+34V
V
CC
to DGND ...........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
SGND to AGND .....................................................-0.3V to +0.3V
SCLK, DIN,
CS, SHDN,
UNI/BIP,
CLR,
LDAC,
DOUT to DGND ..........................-0.3V to (V
CC
+ 0.3V)
OUT to AGND ..................................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
REF to AGND............................................................-0.3V to +6V
Maximum Current into REF...............................................±10mA
Maximum Current into Any Pin Excluding REF.................±50mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin SSOP (derate 7.1mW/°C above +70°C) ...........571mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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 (DUAL SUPPLY)
(V
DD
= +15V ±5%, V
SS
= -15V ±5%, V
CC
= +5V ±10%, AGND = DGND = SGND = 0V, V
REF
= 5V, R
LOAD
= 2kΩ, C
LOAD
= 250pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Zero-Scale Error
Zero-Scale Temperature
Coefficient
Gain Error
Gain-Error Temperature
Coefficient
ANALOG OUTPUT (OUT)
Output Voltage Range
Resistive Load to GND
Capacitive Load to GND
DC Output Resistance
SGND INPUT (SGND)
Input Impedance
REFERENCE INPUT (REF)
Reference-Voltage Input Range
Input Resistance
Reference Bandwidth
R
REF
Code = 555hex, worst-case code
Shutdown
V
REF
= 200mV
P-P
+ 5VDC
2.00
15
22
22
200
5.25
V
kΩ
kHz
92
kΩ
R
LOAD
C
LOAD
0.5
(V
SS
+ 1.5V) < V
OUT
< (V
DD
- 1.5V)
-2 x
V
REF
2
250
+2 x
V
REF
V
kΩ
pF
Ω
N
INL
DNL
Guaranteed monotonic
Bipolar, code = 800hex
Unipolar, code = 000hex
Bipolar
Unipolar
Bipolar, no load
Unipolar, no load
Bipolar, no load
Unipolar, no load
2
2
0.3
0.5
±2
±2
12
±1
±1
±1
±2
Bits
LSB
LSB
LSB
ppm
FSR/°C
LSB
ppm
FSR/°C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
±10V, 12-Bit, Serial, Voltage-Output DAC
ELECTRICAL CHARACTERISTICS (DUAL SUPPLY) (continued)
(V
DD
= +15V ±5%, V
SS
= -15V ±5%, V
CC
= +5V ±10%, AGND = DGND = SGND = 0V, V
REF
= 5V, R
LOAD
= 2kΩ, C
LOAD
= 250pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
0.7 x
V
CC
2.4
0.6
0.8
10
10
±1
µA
±1
V
pF
TYP
MAX
UNITS
DIGITAL INPUTS (SCLK, DIN,
CS, SHDN,
UNI/BIP,
CLR, LDAC)
Input-Voltage High
V
IH
+2.7V
≤
V
CC
≤
+3.6V
+4.5V
≤
V
CC
≤
+5.5V
Input-Voltage Low
Input Capacitance
V
IL
C
+2.7V
≤
V
CC
≤
+3.6V
+4.5V
≤
V
CC
≤
+5.5V
+2.7V
≤
V
CC
≤
+3.6V
+4.5V
≤
V
CC
≤
+5.5V
0
≤
all digital inputs
≤
V
CC
,
+2.7V
≤
V
CC
≤
+3.6V
0
≤
all digital inputs
≤
V
CC
,
+4.5V
≤
V
CC
≤
+5.5V
DIGITAL OUTPUT (DOUT)
Output-Voltage High
Output-Voltage Low
Tri-State Leakage Current
Tri-State Capacitance
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Output Settling Time
Digital Feedthrough
Output-Noise Spectral Density at
10kHz
POWER SUPPLIES
Positive Analog-Supply Voltage
Negative Analog-Supply Voltage
Positive Digital-Supply Voltage
Positive Analog-Supply Current
Negative Analog-Supply Current
Digital-Supply Current
Power-Supply Rejection Ratio
(Note 2)
Shutdown Current
V
DD
V
SS
V
CC
I
DD
I
SS
I
CC
PSRR
Output unloaded, V
OUT
= FS
Output unloaded, V
OUT
= FS
All digital inputs = 0 or V
CC
Positive analog supply
Negative analog supply
Positive analog supply
Negative analog supply
Digital supply
10.80
-10.80
2.7
1.8
0.75
30
0.4
0.6
1.7
2.4
3.5
50
50
10
µA
15.75
-15.75
5.5
4
-2
200
V
V
V
mA
mA
µA
LSB/V
To
±0.5
LSB of full scale, code 000 to
code FFF
CS
= high, f
SCLK
= 10MHz, V
OUT
= 0V
2.5
10
10
130
V/µs
µs
nV-s
nV/√Hz
V
OH
V
OL
I
SOURCE
= 2mA
I
SINK
= 2mA
0.2
10
V
CC
-
0.5
0.4
V
V
µA
pF
V
MAX5312
Input Current (Note 1)
_______________________________________________________________________________________
3
±10V, 12-Bit, Serial, Voltage-Output DAC
MAX5312
ELECTRICAL CHARACTERISTICS (SINGLE SUPPLY)
(V
DD
= +15V ±5%, V
SS
= 0V, V
CC
= +5V ±10%, AGND = DGND = SGND = 0V, V
REF
= 5V, R
LOAD
= 10kΩ, C
LOAD
= 250pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Unipolar Zero-Scale Error
Unipolar Zero-Scale Temperature
Coefficient
Gain Error
Gain-Error Temperature
Coefficient
ANALOG OUTPUT (OUT)
Output Voltage Range
Resistive Load to GND
Capacitive Load to GND
DC Output Resistance
SGND INPUT (SGND)
Input Impedance
REFERENCE INPUT (REF)
Reference-Voltage Input Range
Input Resistance
Reference Input Bandwidth
Code = 555hex, worst-case code
V
REF
= 200mV
P-P
+ 5V
DC
0.7 x
V
CC
2.4
0.6
0.8
10
10
±1
±1
V
CC
-
0.5
0.4
0.2
V
pF
µA
2.00
15
22
150
5.25
V
kΩ
kHz
92
kΩ
R
LOAD
C
LOAD
0.5
0
10
250
+2 x
V
REF
V
kΩ
pF
Ω
N
INL
DNL
(Note 3)
Guaranteed monotonic
Code = 14hex
Code = 14hex
No load
No load
2
0.05
±2
12
±1
±1
±2
Bits
LSB
LSB
LSB
ppm
FSR/°C
LSB
ppm
FSR/°C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DIGITAL INPUTS (SCLK, DIN,
CS, SHDN,
UNI/BIP,
CLR, LDAC)
Input-Voltage High
V
IH
+2.7V
≤
V
CC
≤
+3.6V
+4.5V
≤
V
CC
≤
+5.5V
Input-Voltage Low
Input Capacitance
Input Current
DIGITAL OUTPUT (DOUT)
Output-Voltage High
Output-Voltage Low
Tri-State Leakage Current
V
OH
V
OL
I
SOURCE
= 2mA
I
SINK
= 2mA
V
V
µA
V
IL
C
IN
I
IN
+2.7V
≤
V
CC
≤
+3.6V
+4.5V
≤
V
CC
≤
+5.5V
+2.7V
≤
V
CC
≤
+3.6V
+4.5V
≤
V
CC
≤
+5.6V
0
≤
V
IN
≤
V
CC,
+2.7V
≤
V
CC
≤
+3.6V
0
≤
V
IN
≤
V
CC,
+4.5V
≤
V
CC
≤
+5.5V
V
4
_______________________________________________________________________________________
±10V, 12-Bit, Serial, Voltage-Output DAC
ELECTRICAL CHARACTERISTICS (SINGLE SUPPLY) (continued)
(V
DD
= +15V ±5%, V
SS
= 0V, V
CC
= +5V ±10%, AGND = DGND = SGND = 0V, V
REF
= 5V, R
LOAD
= 10kΩ, C
LOAD
= 250pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Tri-State Capacitance
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Output Settling Time
Digital Feedthrough
Output-Noise Spectral Density at
1kHz
POWER SUPPLIES
Positive Analog-Supply Voltage
Negative Analog-Supply Voltage
Positive Digital-Supply Voltage
Positive Analog-Supply Current
Negative Analog-Supply Current
Digital-Supply Current
Power-Supply Rejection Ratio
Shutdown Current
V
DD
V
SS
V
CC
I
DD
I
SS
I
CC
PSRR
Output unloaded, V
OUT
= 0
Output unloaded, V
OUT
= 0
All digital inputs = 0 or V
CC
∆V
DD
= 14.5V to 15.5V, code FFF
Analog supply
Digital supply
2.7
1.8
0.75
30
0.04
1.7
3.5
50
10
10.80
0
5.5
4
-2
200
15.75
V
V
V
mA
mA
µA
LSB/V
µA
To
±0.5
LSB of full scale, code 14hex to
code FFF
CS
= high, f
SCLK
= 10MHz, V
OUT
= 0V
2.5
10
10
130
V/µs
µs
nV-s
nV/√Hz
SYMBOL
CONDITIONS
MIN
TYP
10
MAX
UNITS
pF
MAX5312
_______________________________________________________________________________________
5
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