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MAX5236EUBMAXN/a2avaiSingle-Supply 3V/5V, Voltage-Output, Dual, Precision 10-Bit DACs
MAX5237EUBMAXN/a4avaiSingle-Supply 3V/5V, Voltage-Output, Dual, Precision 10-Bit DACs


MAX5237EUB ,Single-Supply 3V/5V, Voltage-Output, Dual, Precision 10-Bit DACsApplications Buffered Output Drives 5kΩ || 100pFIndustrial Process ControlsAutomatic Test Equipmen ..
MAX525 ,Low-Power, Quad, 12-Bit Voltage-Output DAC with Serial InterfaceApplicationsMAX525BCPP 0°C to +70°C 20 Plastic DIP ±1Industrial Process ControlsMAX525ACAP 0°C to + ..
MAX5250ACAP ,Low-Power, Quad, 10-Bit Voltage-Output DAC with Serial Interfacefeatures include software shutdown, hard- DACs to Zeroware shutdown lockout, an active-low reset th ..
MAX5250ACAP+ ,Low-Power, Quad, 10-Bit Voltage-Output DAC with Serial InterfaceApplicationsMAX5250ACPP 0°C to +70°C 20 Plastic DIP ±1/2Digital Offset and Gain AdjustmentMAX5250BC ..
MAX5250ACPP ,Low-Power, Quad, 10-Bit Voltage-Output DAC with Serial InterfaceGeneral Description __________
MAX5250AEAP ,Low-Power, Quad, 10-Bit Voltage-Output DAC with Serial InterfaceApplicationsMAX5250ACPP 0°C to +70°C 20 Plastic DIP ±1/2Digital Offset and Gain AdjustmentMAX5250BC ..
MAX9716ETA+ ,Low-Cost, Mono, 1.4W BTL Audio Power AmplifiersBlock DiagramsSINGLE SUPPLY SINGLE SUPPLY2.7V TO 5.5V 2.7V TO 5.5VBIAS BIASMAX9716 MAX9717B/C/DIN- ..
MAX9716ETA+T ,Low-Cost, Mono, 1.4W BTL Audio Power AmplifiersFeaturesThe MAX9716/MAX9717 audio power amplifiers are ideal ♦ 2.7V to 5.5V Single-Supply Operation ..
MAX9716EUA ,Low-Cost, Mono, 1.4W BTL Audio Power AmplifiersFeaturesThe MAX9716/MAX9717 audio power amplifiers are ideal♦ 2.7V to 5.5V Single-Supply Operationf ..
MAX9716EUA+T ,Low-Cost, Mono, 1.4W BTL Audio Power AmplifiersELECTRICAL CHARACTERISTICS—5V Supply(V = 5V, V = 0V, SHDN = V , T = +25°C. C = 1µF, R = R = 20kΩ (M ..
MAX9717BEUA ,Low-Cost, Mono, 1.4W BTL Audio Power AmplifiersBlock DiagramsSINGLE SUPPLY SINGLE SUPPLY2.7V TO 5.5V 2.7V TO 5.5VBIAS BIASMAX9716 MAX9717B/C/DIN- ..
MAX9718AETB ,Low-Cost, Mono/Stereo,1.4W Differential Audio Power AmplifiersBlock DiagramSINGLE SUPPLY2.7V TO 5.5VSINGLE SUPPLY2.7V TO 5.5VOUTL+INL+OUT+IN+INL-OUTL-OUTR+INR+IN ..


MAX5236EUB-MAX5237EUB
Single-Supply 3V/5V, Voltage-Output, Dual, Precision 10-Bit DACs
General Description
The MAX5236/MAX5237 precision, dual, voltage-out-
put, 10-bit digital-to-analog converters (DACs) con-
sume only 360µA from a single 5V (MAX5237) or 325µA
from a single 3V (MAX5236) supply. These devices fea-
ture output buffers that swing Rail-to-Rail®. The internal
gain amplifiers (1.6384V/V) maximize the dynamic
range of the DAC output.
The MAX5236/MAX5237 feature 13.5MHz a 3-wire seri-
al interface compatible with SPI™/QSPI™/and
MICROWIRE™. Each DAC input is organized as an
input register followed by a DAC register. A 16-bit shift
register loads data into the input registers. Input regis-
ters update the DAC registers independently or simulta-
neously. In addition, programmable control bits allow
power-down with 1kΩor 200kΩinternal loads.
The MAX5236/MAX5237 are fully specified over the
extended industrial temperature range (-40°C to +85°C)
and are available in space-saving 10-pin µMAX packages.
Applications

Industrial Process Controls
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control
µP-Controlled Systems
Features
Guaranteed 1/2LSB INL (max)Low Supply Current
325µA (Normal Operation)
0.4µA (Full Power-Down Mode)
Single-Supply Operation
3V (MAX5236)
5V (MAX5237)
Space-Saving 10-Pin µMAX PackageOutput Buffers Swing Rail-to-RailPower-On Reset Clears Registers and DACs
to Zero
Programmable Shutdown Modes with 1kΩor
200kΩInternal Loads
Resets to Zero13.5MHz SPI/QSPI/MICROWIRE-Compatible,
3-Wire Serial Interface
Buffered Output Drives 5kΩ|| 100pF
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
Pin Configuration
Ordering Information

19-2329; Rev 0; 1/02
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX5237

(VDD= +4.5V to +5.5V, GND = 0, VREFA= VREFB= +2.5V, RL= 5kΩ, CL = 100pF, TA= TMINto TMAX, unless otherwise noted. Typical
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.
VDDto GND .............................................................-0.3V to +6V
Digital Inputs to GND ..............................................-0.3V to +6V
REF_, OUT_ to GND ................................-0.3V to (VDD+ 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA= +70°C)
10-Pin µMAX (derate 5.60mW/°C above +70°C)..........444mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature Range (soldering, 10s ).....................+300°C
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
ELECTRICAL CHARACTERISTICS—MAX5237 (continued)

(VDD= +4.5V to +5.5V, GND = 0, VREFA= VREFB= +2.5V, RL= 5kΩ, CL = 100pF, TA= TMINto TMAX, unless otherwise noted. Typical
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
ELECTRICAL CHARACTERISTICS—MAX5236

(VDD= +2.7V to +3.6V, GND = 0, VREFA= VREFB= +1.25V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless otherwise noted.
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
ELECTRICAL CHARACTERISTICS—MAX5236 (continued)

(VDD= +2.7V to +3.6V, GND = 0, VREFA= VREFB= +1.25V, RL= 5kΩ, CL= 100pF, TA= TMINto TMAX, unless otherwise noted.
Typical values are at TA= +25°C.)
TIMING CHARACTERISTICS—MAX5237 (FIGURES 1 AND 2)

(VDD= +4.5V to +5.5V, GND = 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
TIMING CHARACTERISTICS—MAX5236 (FIGURES 1 AND 2)

(VDD= +2.7V to +3.6V, GND = 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
Note 1:
Accuracy is guaranteed in the following way:
Note 2:
Offset is measured at the code closest to 12mV.
Note 3:
Gain from VREF_ to VOUT_ is typically 1.638 ✕CODE/1024.
Note 4:
DC crosstalk is measured as follows: set DAC A to midscale, and DAC B to zero, and measure DAC A output; then change
DAC B to full scale and measure ∆VOUTfor DAC A. Repeat the same measurement with DAC A and DAC B interchanged.
DC crosstalk is the maximum ∆VOUTmeasured.
Note 5:
The DAC output voltage is derived by gaining up VREFby 1.638 ✕CODE/1024. This gain factor may cause VOUTto try to
exceed the supplies. The maximum value of VREFin the reference input range spec prevents this from happening at full
scale. The minimum VREFvalue of 0.25V is determined by linearity constraints, not DAC functionality.
Note 6:
Accuracy is better than 1LSB for VOUT= 12mV to VDD- 180mV.
Note 7:
Guaranteed by design. Not production tested.
Note 8:
RLOAD= ∞and digital inputs are at either VDDor GND. VOUT= full-scale output voltage.
Note 9:
This timing requirement applies only to CSrising edges, which execute commands modifying the DAC input register contents.
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs

INTEGRAL NONLINEARITY
vs. DIGITAL INPUT CODE (MAX5236)
MAX5236/7 toc01
DIGITAL INPUT CODE
INL (LSB)
INTEGRAL NONLINEARITY
vs. DIGITAL CODE (MAX5237)
MAX5236/7 toc02
DIGITAL INPUT CODE
INL (LSB)
DIFFERENTIAL NONLINEARITY
vs. DIGITAL INPUT CODE (MAX5236)
MAX5236/7 toc03
DIGITAL INPUT CODE
DNL (LSB)
DIFFERENTIAL NONLINEARITY
vs. DIGITAL INPUT CODE (MAX5237)
MAX5236/7 toc04
DIGITAL INPUT CODE
DNL (LSB)
MAX5236
SUPPLY CURRENT vs. TEMPERATURE
MAX5236/7 toc05
TEMPERATURE (°C)
SUPPLY CURRENT (
MAX5237
SUPPLY CURRENT vs. TEMPERATURE
MAX5236/7 toc06
TEMPERATURE (°C)
SUPPLY CURRENT (
MAX5236
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX5236/7 toc07
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
MAX5237
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX5236/7 toc08
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
MAX5236
FULL POWER-DOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX5236/7 toc09
TEMPERATURE (°C)
SUPPLY CURRENT (0.35
Typical Operating Characteristics

(VDD= +5V (MAX5237) VDD= +3V (MAX5236), RL= 5kΩ, CL= 100pF, VREF= +1.25V (MAX5236), VREF= +2.5V (MAX5237), CREF
= 0.1µF ceramic || 2.2µF electrolytic, both DACs on, VOUT= full scale, TA= +25°C, unless otherwise noted.)
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
Typical Operating Characteristics (continued

(VDD= +5V (MAX5237) VDD= +3V (MAX5236), RL= 5kΩ, CL= 100pF, VREF= +1.25V (MAX5236), VREF= +2.5V (MAX5237), CREF
= 0.1µF ceramic || 2.2µF electrolytic, both DACs on, VOUT= full scale, TA= +25°C, unless otherwise noted.)
MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs

2µs/div
MAX5236
DYNAMIC RESPONSE RISE TIME

1V/div
MAX5236/7 toc19
OUT_
1V/div
4µs/div
MAX5237
DYNAMIC RESPONSE RISE TIME

2V/div
MAX5236/7 toc20
OUT_
2V/div
2µs/div
MAX5236
DYNAMIC RESPONSE FALL TIME

1V/div
MAX5236/7 toc21
OUT_
1V/div
MAX5236/7 toc22
MAX5237
DYNAMIC RESPONSE FALL TIME

OUT_
2V/div
2µs/div
2V/div
2ms/div
MAX5236
CROSSTALK

OUTB
2V/div
MAX5236/7 toc23
OUTA
1mV/div
SHUTDOWN
40µs/div
MAX5237
CROSSTALK

OUTB
5V/div
MAX5236/7 toc24
OUTA
1mV/div
SHUTDOWN
40µs/div
MAX5236
DIGITAL FEEDTHROUGH

SCLK
2V/div
MAX5236/7 toc25
OUT_
1mV/div
40µs/div
MAX5237
DIGITAL FEEDTHROUGH

SCLK
5V/div
MAX5236/7 toc26
OUT_
1mV/div
1µs/div
MAX5236
MAJOR CARRY GLITCH

1V/div
MAX5236/7 toc27
OUT_
50mV/div
AC-COUPLED
Typical Operating Characteristics (continued)

(VDD= +5V (MAX5237) VDD= +3V (MAX5236), RL= 5kΩ, CL= 100pF, VREF= +1.25V (MAX5236), VREF= +2.5V (MAX5237), CREF
= 0.1µF ceramic || 2.2µF electrolytic, both DACs on, VOUT= full scale, TA= +25°C, unless otherwise noted.)
MAX5236/MAX5237
Detailed Description

The MAX5236/MAX5237 10-bit, voltage-output DACs
are easily configured with a 3-wire SPI/
QSPI/MICROWIRE serial interface. The devices include
a 16-bit data-in/data-out shift register and have an input
consisting of an input register and a DAC register. In
addition, these devices employ precision trimmed inter-
nal resistors to produce a gain of 1.6384V/V, maximiz-
ing the output voltage swing, and a programmable
shutdown output impedance of 1kΩor 200kΩ. The full-
scale output voltage is 4.092V for the MAX5237 and
2.046V for the MAX5236. These devices produce a
weighted output voltage proportional to the digital input
code with an inverted rail-to-rail ladder network (Figure 3).
External Reference

The reference inputs accept both AC and DC values
with a voltage range extending from 0.25V to 2.6V for
the MAX5237 and 0.25V to 1.5V for the MAX5236. For
proper operation do notexceed the input voltage
range limits. Determine the output voltage using the fol-
lowing equation:
VOUT_ = (VREF_ x NB / 1024) x 1.6384V/V
where NB is the numeric value of the DACs binary input
code (0 to 1023), VREF_ is the reference voltage, and
1.6384V/V is the gain of the internal output amplifier.
The code-dependent reference input impedance
ranges from a minimum of 28kΩto several GΩat code
0. The code-dependent reference input capacitance is
typically 23pF.
Output Amplifier

The output amplifiers have internal resistors that pro-
vide for a gain of 1.6384V/V. These trimmed resistors
minimize gain error. The output amplifiers have a typical
slew rate of 0.6V/µs and settle to 1/2LSB within 10µs
(typ) with a load of 5kΩin parallel with 100pF. Use the
serial interface to set the shutdown output impedance
of the amplifiers to 1kΩor 200kΩ.
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs

2µs/div
MAX5237
MAJOR CARRY GLITCH

2V/div
MAX5236/7 toc28
OUT_
50mV/div
AC-COUPLED
MAX5236
FULL-SCALE OUTPUT VOLTAGE
vs. REFERENCE VOLTAGE
MAX5236/7 toc29
VREF (V)
OUT
(V)
MAX5237
FULL-SCALE OUTPUT VOLTAGE
vs. REFERENCE VOLTAGE
MAX5236/7 toc30
VREF (V)
OUT
(V)
Typical Operating Characteristics (continued)

(VDD= +5V (MAX5237) VDD= +3V (MAX5236), RL= 5kΩ, CL= 100pF, VREF= +1.25V (MAX5236), VREF= +2.5V (MAX5237), CREF
= 0.1µF ceramic || 2.2µF electrolytic, both DACs on, VOUT= full scale, TA= +25°C, unless otherwise noted.)
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