max5661 Maxim Integrated Products, Inc., max5661 Datasheet

max5661

Manufacturer Part Number

max5661

Description

Single 16-bit Dac With Current And Voltage Outputs For Industrial Analog Output Modules

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5661.pdf (39 pages)

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The MAX5661 single 16-bit DAC with precision high-

voltage amplifiers provides a complete solution for pro-

grammable current and voltage-output applications.

The output amplifiers swing to industry-standard levels

of ±10V (voltage output) or source from 0mA (or from

4mA) to 20mA (current output). The voltage output

(OUTV) drives resistive loads greater than 2kΩ and

capacitive loads of up to 1.2µF. Voltage-output force-

sense connections compensate for series protection

resistors and field-wiring resistance. Short-circuit pro-

tection on the voltage output limits output current to

10mA (typ) sourcing or -11.5mA (typ) sinking. The cur-

rent output (OUTI) drives resistive loads up to 37.5V

(max) and inductive loads up to 1H.

The MAX5661 provides either a current output or a volt-

age output. Only one output is active at any given time,

regardless of the configuration. The MAX5661 voltage

output operates with ±13.48V to ±15.75V supplies

single +13.48V to +40V supply (V

+5.25V digital supply (V

nal circuitry. A buffered reference input accepts an

external +4.096V reference voltage.

Update the DAC outputs using software commands or

the asynchronous LDAC input. An asynchronous CLR

input sets the DAC outputs to the value stored in the

clear register or to zero. The FAULT output asserts

when the DAC’s current output is an open circuit, the

DAC’s voltage output is a short circuit, or when the CLR

input is low.

The MAX5661 communicates through a 4-wire 10MHz

SPI™-/QSPI™-/MICROWIRE™-compatible serial inter-

face. The DOUT output allows daisy chaining of multi-

ple devices. The MAX5661 is available in a 10mm x

10mm, 64-pin, LQFP package and operates over the

-40°C to +105°C temperature range.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

19-0741; Rev 0; 8/08

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.

DDV

Outputs for Industrial Analog Output Modules

, V

Industrial Analog Output Modules

Industrial Instrumentation

Programmable Logic Controls/Distributed

Control Systems

Process Control

SSV

Single 16-Bit DAC with Current and Voltage

) and the current output operates with a

________________________________________________________________ Maxim Integrated Products

General Description

) powers the rest of the inter-

Applications

DDI

). A +4.75V to

♦ 10-Bit Programmable Full-Scale Output

♦ Programmable Voltage Output

♦ Programmable Current Output

♦ Flexible Analog Supplies (See Table 16)

♦ Force-Sense Connections (Voltage Output)

♦ Voltage-Output Current Limit

♦ Dropout Detector Senses Out-of-Regulation

♦ CLR and LDAC Inputs for Asynchronous DAC

♦ CLR Input Resets Output to Programmed Value or

♦ FAULT Output Indicates Open-Circuited Current

♦ Temperature Drift

♦ Small 64-Pin LQFP Package (10mm x 10mm)

+ Denotes a lead-free/RoHS-compliant package.

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

Adjustment for Up to ±25% Over Range

for Differential Voltage-Output Remote Sensing

Current Output

Updates

Zero Code

Output, Short-Circuited Voltage Output, or Clear

State

MAX5661GCB+

Unipolar Range: 0 to +10.24V ±25%

Bipolar Range: ±10.24V ±25%

Unipolar Low Range: 0 to 20.45mA

Unipolar High Range: 3.97mA to 20.45mA

±13.48V to ±15.75V for Voltage Output

+13.48V to +40V for Current Output

Voltage Output: ±0.4ppm FSR/°C

Current Output: ±7.9ppm FSR/°C

PART

-40°C to +105°C

TEMP RANGE

Ordering Information

PIN-PACKAGE

Features

64 LQFP

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