DAC81401中文资料德州仪器数据手册PDF规格书

1 Features

• Exceptional performance: 1 LSB INL/DNL

(maximum)

• Ultra-low glitch energy: 1 nV-s

• Wide power supply:

– Unipolar mode: +4.5 V to +41.5 V

– Bipolar mode: ±4.5 V to ±21.5 V

• 14 user-programmable output ranges

– ±5 V, ±10 V, ±20 V

– 0 V to 5 V, 0 V to 10 V, 0 V to 20 V, 0 V to 40 V

– 20 overrange (except ±20 V and 0 V to 40 V)

• Integrated 10 ppm/°C, 2.5-V precision reference

• Reliability features:

– Cyclic redundancy check (CRC)

– Fault pin

• 50-MHz, 4-wire SPI-compatible interface

– Readback

– Daisy-chain

• Temperature range: –40°C to +125°C

• Packages:

– 20-pin TSSOP (PW)

2 Applications

• Semiconductor test and ATE

• Lab and field instrumentation

• PLC, DCS, and PAC

• Analog output module

• Servo drive control module

3 Description

The 16-bit DAC81401 and 12-bit DAC61401

(DACx1401) devices are a pin-compatible family of

single-channel, buffered, high-voltage output digitalto-

analog converters (DACs) with an integrated

2.5‑V internal reference. These devices are specified

monotonic and provide an exceptional linearity of less

than 1 LSB (maximum).

The DACx1401 offer bipolar output voltages of ±20 V,

±10 V, ±5 V, and full-scale unipolar output voltages

of 40 V, 10 V, and 5 V. The DAC output range is

programmable.

The DACx1401 incorporate a power-on-reset (POR)

circuit that powers up the DAC output and keeps

the device in power-down mode until the outputs are

enabled.

Communication to the devices is done through

a high-speed, 4-wire serial interface compatible

with industry-standard microprocessors and

microcontrollers supporting 1.7‑V to 5.5‑V operation.

The DACx1401 are characterized for operation over

the temperature range of –40°C to +125°C, and are

available in a small 20-pin TSSOP package.