Complete Dual, 16-Bit, High Accuracy,

Serial Input, ±5V DACs

Preliminary Technical Data

AD5763

Rev. PrA

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FEATURES

Complete Dual, 16-bit digital-to-analog

converters (DACs)

Programmable output range:

±4.096 V, ±4.201 V, or ±4.311 V

±1 LSB maximum INL error, ±1 LSB maximum DNL error

Low noise: 60 nV/√Hz

Settling time: 10 µs maximum

Integrated reference buffers

On-chip die temperature sensor

Output control during power-up/brownout

Programmable short-circuit protection

Simultaneous updating via LDAC

Asynchronous CLR to zero code

Digital offset and gain adjust

Logic output control pins

DSP-/microcontroller-compatible serial interface

Temperature range: −40°C to +105°C

iCMOS

APPLICATIONS

Industrial automation

Open-/closed-loop servo control

Process control

Data acquisition systems

Automatic test equipment

Automotive test and measurement

High accuracy instrumentation

GENERAL DESCRIPTION

The AD5763 is a Dual, 16-bit, serial input, bipolar voltage

output digital-to-analog converter that operates from supply

voltages of ±4.75 V up to ±5.25 V. Nominal full-scale output

range is ±4.096 V. The AD5763 provides integrated output

amplifiers, reference buffers and proprietary power-up/power-

down control circuitry. The part also features a digital I/O port,

which is programmed via the serial interface. The parts

incorporate digital offset and gain adjust registers per channel.

The AD5763 is a high performance converter that offers

guaranteed monotonicity, integral nonlinearity (INL) of ±1 LSB,

low noise, and 10 µs settling time. During power-up (when the

supply voltages are changing), the outputs are clamped to 0 V

via a low impedance path.

The AD5763 uses a serial interface that operates at clock rates of up

to 30 MHz and is compatible with DSP and microcontroller

interface standards. Double buffering allows the simultaneous

updating of all DACs. The input coding is programmable to either

twos complement or offset binary formats. The asynchronous clear

function clears all DAC registers to either bipolar zero or zero scale

depending on the coding used. The AD5763 is ideal for both

closed-loop servo control and open-loop control applications. The

AD5763 is available in a 32-lead TQFP, and offers guaranteed

specifications over the −40°C to +105°C industrial temperature

range. See Figure 1, the functional block diagram.

Table 1. Related Devices

Part No.

Description

AD5764

Complete quad, 16-bit, high accuracy, serial

input, ±10V output DAC

AD5765

Complete quad, 16-bit, high accuracy, serial

input, ±5V DAC

OEMs who need high performance ICs at higher voltage levels, iCMOS is a

technology platform that enables the development of analog ICs capable of

30 V and operating at ±15 V supplies, allowing dramatic reductions in power

consumption and package size, and increased ac and dc performance.