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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5230 Datasheet

3V/5V / 12-Bit / Serial Voltage-Output Dual DACs

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19-2332; Rev 2; 9/08
3V/5V, 12-Bit, Serial Voltage-Output Dual DACs
with Internal Reference
General Description
The MAX5230/MAX5231 low-power, dual 12-bit voltage-
output digital-to-analog converters (DACs) feature an
internal 10ppm/°C precision bandgap voltage reference
and precision output amplifiers. The MAX5231 operates
on a single 5V supply with an internal 2.5V reference and
features a 4.095V full-scale output range. The MAX5230
operates on a single 3V supply with an internal 1.25V ref-
erence and features a 2.0475V full-scale output range.
The MAX5231 consumes only 470µA while the MAX5230
consumes only 420µA of supply current. Both devices
feature low-power (2µA) software- and hardware-
enabled shutdown modes.
The MAX5230/MAX5231 feature a 13.5MHz SPI™-,
QSPI™-, and MICROWIRE™-compatible 3-wire serial
interface. An additional data output (DOUT) allows for
daisy-chaining and read back. Each DAC has a double-
buffered digital input. The MAX5230/MAX5231 feature
two software-selectable shutdown output impedances:
1kor 200k. A power-up reset feature sets DAC out-
puts at ground or at the midscale DAC code.
The MAX5230/MAX5231 are specified over the extended
temperature range (-40°C to +85°C) and are available in
16-pin QSOP packages.
Applications
Industrial Process Controls
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control
µP-Controlled Systems
Pin Configuration
TOP VIEW
OSA 1
OUTA 2
RSTV 3
LDAC 4
CLR 5
CS 6
DIN 7
SCLK 8
MAX5230
MAX5231
QSOP
16 OSB
15 OUTB
14 VDD
13 AGND
12 REF
11 PDL
10 DOUT
9 DGND
Features
Internal 10ppm/°C Precision Bandgap Reference
2.465V (MAX5231)
1.234V (MAX5230)
Single-Supply Operation
5V (MAX5231)
3V (MAX5230)
Low Supply Current
470µA (MAX5231)
420µA (MAX5230)
13.5MHz SPI/QSPI/MICROWIRE-Compatible,
3-Wire Serial Interface
Pin-Programmable Power-Up Reset State to Zero
or Midscale Output Voltage
Programmable Shutdown Modes with 1kor
200kInternal Output Loads
Recalls Output State Prior to Shutdown or Reset
Buffered Output Drives 5k|| 100pF Loads
Space-Saving 16-Pin QSOP Package
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX5230AEEE+
MAX5230BEEE+
-40°C to +85°C
-40°C to +85°C
16 QSOP
16 QSOP
MAX5231AEEE+
MAX5231BEEE+
-40°C to +85°C
-40°C to +85°C
16 QSOP
16 QSOP
+Denotes a lead-free/RoHS-compliant package.
INL
(LSB)
±0.5
±1
±0.5
±1
Functional Diagram appears at end of data sheet.
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 Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5230 Datasheet

3V/5V / 12-Bit / Serial Voltage-Output Dual DACs

No Preview Available !

3V/5V, 12-Bit, Serial Voltage-Output Dual DACs
with Internal Reference
ABSOLUTE MAXIMUM RATINGS
VDD to AGND, DGND ...............................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Output (DOUT) to DGND...................-0.3V to VDD + 0.3V
OUT_ to AGND .............................................-0.3V to VDD + 0.3V
OS_ to AGND...................................................-4V to VDD + 0.3V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
Operating Temperature Range ...........................-40°C to +85°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—MAX5231
(VDD = +4.5V to +5.5V, OS_ = AGND = DGND = 0, RL = 5k, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
STATIC PERFORMANCE
Resolution
N
Integral Nonlinearity (Note 1)
MAX5231A
INL
MAX5231B
Differential Nonlinearity
DNL
Offset Error (Note 2)
Offset-Temperature Coefficient (Note 3)
Full-Scale Voltage
Full-Scale Temperature Coefficient
Power-Supply Rejection
DC Crosstalk (Note 4)
VOS
TCVOS
VFS
TCVFS
PSR
Code = FFF hex, TA = +25°C
MAX5231 (Notes 3 and 6)
4.5V VDD 5.5V
REFERENCE
Output Voltage
VREF
Output-Voltage Temperature
Coefficient
TCVREF MAX5231 (Note 3)
Reference External Load Regulation
Reference Short-Circuit Current
VOUT/IOUT 0 IOUT 100µA (sourcing)
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS
VIH
VIL
VHYS
IIN
CIN
Digital inputs = 0 or VDD
Output High Voltage
Output Low Voltage
DYNAMIC PERFORMANCE
VOH
VOL
ISOURCE = 2mA
ISINK = 2mA
Voltage-Output Slew Rate
SR
MIN
12
4.070
0.7 x VDD
4.25
TYP
8
4.095
10
175
2.465
10
0.1
4
200
8
0.6
MAX
UNITS
±0.5
±1
±1
±3
4.120
55
500
100
Bits
LSB
LSB
mV
µV/°C
V
ppm/°C
µV
µV
V
ppm/°C
2 µV/µA
mA
0.3 x VDD
±1
V
V
mV
µA
pF
V
0.2 V
V/µs
2 _______________________________________________________________________________________


Part Number MAX5230
Description 3V/5V / 12-Bit / Serial Voltage-Output Dual DACs
Maker Maxim
Total Page 18 Pages
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