__________________General Description

The +5V MAX5250 combines four low-power, voltage-

output, 10-bit digital-to-analog converters (DACs) and

four precision output amplifiers in a space-saving, 20-

pin package. In addition to the four voltage outputs,

each amplifier’s negative input is also available to the

user. This facilitates specific gain configurations, remote

sensing, and high output drive capacity, making the

MAX5250 ideal for industrial-process-control applica-

tions. Other features include software shutdown, hard-

ware shutdown lockout, an active-low reset that clears

all registers and DACs to zero, a user-programmable

logic output, and a serial-data output.

Each DAC has a double-buffered input organized as an

input register followed by a DAC register. A 16-bit serial

word loads data into each input/DAC register. The

3-wire serial interface is compatible with SPI™/QSPI™

and Microwire™. It allows the input and DAC registers to

be updated independently or simultaneously with a sin-

gle software command. All logic inputs are TTL/CMOS-

logic compatible.

________________________Applications

Digital Offset and Gain Adjustment

Microprocessor-Controlled Systems

Industrial Process Controls

Automatic Test Equipment

Remote Industrial Controls

Motion Control

______________________________Features

♦ Four 10-Bit DACs with Configurable

Output Amplifiers

♦ +5V Single-Supply Operation

♦ Low Supply Current: 0.85mA Normal Operation

10µA Shutdown Mode

♦ Available in 20-Pin SSOP and DIP Packages

♦ Power-On Reset Clears all Registers and

DACs to Zero

♦ SPI/QSPI and Microwire Compatible

♦ Simultaneous or Independent Control of DACs

via 3-Wire Serial Interface

♦ User-Programmable Digital Output

♦ Schmitt-Trigger Inputs for Direct Optocoupler

Interface

♦ 12-Bit Upgrade Available: MAX525

MAX5250

Low-Power, Quad, 10-Bit Voltage-Output DAC

with Serial Interface

________________________________________________________________

Maxim Integrated Products

MAX5250

OUTA

FBA

FBB

FBC

FBD

DAC A

DAC B

DAC C

DAC D

REFAB

DAC

DECODE

CONTROL

INPUT

DAC

INPUT

DAC

INPUT

DAC

INPUT

16-BIT

SHIFT

SR

CONTROL

LOGIC

OUTPUT

DIN

SCLK

OUTB

OUTC

OUTD

DOUT

PDL

AGND

DGND

UPO REFCD

_________________________________________________________________________Functional Diagram

19-1171; Rev 0; 12/96

_________________Ordering Information

Ordering Information continued on last page.

Pin Configuration appears at end of data sheet.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.

PART

MAX5250ACPP

MAX5250BCPP

MAX5250ACAP 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

20 Plastic DIP

20 SSOP

INL

(LSB)

±1/2

±1

±1/2

MAX5250BCAP 0°C to +70°C 20 SSOP ±1

MAX5250

Low-Power, Quad, 10-Bit Voltage-Output DAC

with Serial Interface

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +5V ±10%, AGND = DGND = 0V, REFAB = REFCD = 2.5V, R

= 5kΩ, C

= 100pF, T

= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

= +25°C. Output buffer connected in unity-gain configuration (Figure 9).)

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.

to AGND............................................................-0.3V to +6V

to DGND ...........................................................-0.3V to +6V

AGND to DGND..................................................................±0.3V

REFAB, REFCD to AGND...........................-0.3V to (V

+ 0.3V)

OUT_, FB_ to AGND...................................-0.3V to (V

+ 0.3V)

Digital Inputs to DGND.............................................-0.3V to +6V

DOUT, UPO to DGND ................................-0.3V to (V

+ 0.3V)

Continuous Current into Any Pin.......................................±20mA

Continuous Power Dissipation (T

= +70°C)

Plastic DIP (derate 8.00mW/°C above +70°C) .................640mW

SSOP (derate 8.00mW/°C above +70°C) ......................640mW

CERDIP (derate 11.11mW/°C above +70°C).................889mW

Operating Temperature Ranges

MAX5250_C_P ......................................................0°C to +70°C

MAX5250_E_P ...................................................-40°C to +85°C

MAX5250BMJP................................................-55°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10sec) .............................+300°C

PARAMETER SYMBOL MIN TYP MAX UNITS

Offset-Error Tempco 6 ppm/°C

Offset Error V

±6.0 mV

Differential Nonlinearity DNL ±1.0 LSB

Integral Nonlinearity

(Note 1)

INL

±1.0

LSB

Gain Error (Note 1) GE ±1.0 LSB

Gain-Error Tempco 1 ppm/°C

Power-Supply Rejection Ratio PSRR 100 800 µV/V

Resolution N 10 Bits

±0.25 ±0.5

Reference Input Range V

REF

- 1.4 V

Reference Input Resistance R

REF

10 kΩ

Reference -3dB Bandwidth 650 kHz

Signal-to-Noise Plus

Distortion Ratio

SINAD 72 dB

REF

= 0.67Vp-p

REF

= 1Vp-p at 25kHz, code = full scale

Reference Feedthrough -84 dBInput code = all 0s, V

REF

= 3.6Vp-p at 1kHz

CONDITIONS

Code dependent, minimum at code 554 hex

Guaranteed monotonic

MAX5250B

4.5V ≤ V

≤ 5.5V

MAX5250A

STATIC PERFORMANCE—ANALOG SECTION

REFERENCE INPUT

MULTIPLYING-MODE PERFORMANCE

MAX5250

Low-Power, Quad, 10-Bit Voltage-Output DAC

with Serial Interface

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +5V ±10%, AGND = DGND = 0V, REFAB = REFCD = 2.5V, R

= 5kΩ, C

= 100pF, T

= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

= +25°C. Output buffer connected in unity-gain configuration (Figure 9).)

Note 1: Guaranteed from code 3 to code 1023 in unity-gain configuration.

Note 2: Accuracy is better than 1LSB for V

OUT

= 6mV to V

- 60mV, guaranteed by a power-supply rejection test at the

end points.

Note 3: R

= ∞, digital inputs at DGND or V

PARAMETER SYMBOL MIN TYP MAX UNITS

Output High Voltage V

- 0.5 V

Input Capacitance C

8 pF

Input Leakage Current I

0.01 ±1.0 µA

Reference Current in Shutdown 0.01 ±1 µA

Output Low Voltage V

0.13 0.4 V

Voltage Output Slew Rate SR 0.6 V/µs

Input High Voltage V

2.4 V

Input Low Voltage V

0.8 V

Output Settling Time 10 µs

Output Voltage Swing 0 to V

Current into FB_ 0 0.1 µA

OUT_ Leakage Current

in Shutdown

0.01 ±1 µA

Start-Up Time Exiting

Shutdown Mode

15 µs

Digital Feedthrough 5 nV-s

Digital Crosstalk 5 nV-s

Supply Voltage V

4.5 5.5 V

Supply Current I

0.85 0.98 mA

Supply Current in Shutdown 10 20 µA

CONDITIONS

To ±1/2LSB, V

STEP

= 2.5V

SOURCE

= 2mA

Rail-to-rail (Note 2)

= 0V or V

SINK

= 2mA

= ∞

CS = V

, DIN = 100kHz

(Note 3)

DIGITAL INPUTS

DIGITAL OUTPUTS

DYNAMIC PERFORMANCE

POWER SUPPLIES

Part #	MAX5250AEPP
Description	IC DAC QUAD +5V LP 10BIT 20-DIP
Category	IC
Availability	In Stock
Qty	2

MAX5250AEPP

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