DAC81401数据手册TI中文资料规格书

描述 Description

The 16-bit DAC81401 and 12-bit DAC61401 (DACx1401) devices are a pin-compatible family of single-channel, buffered, high-voltage output digital-to-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.

特性 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)