Texas Instruments AFE881H1 | Demoboard AFE881H1EVM

Description

The AFE881H1 evaluation module (EVM) is a platform for evaluating the AFE881H1, which is a highly-integrated, high-accuracy, extremely low-power, 16-bit digital-to-analog converter (DAC) with voltage outputs designed for HART®-enabled sensor transmitter applications.AFE881H1 also features cyclic redundancy check (CRC) fault detection and a 12-bit 1-kSPS analog-to-digital converter (ADC) for advanced diagnostics.The USB2ANY interface tool (sold separately) incorporates the GUI with the AFE88H1EVM and is required for use.

Features

• Functional Safety Available
• Documentation Available for Functional Safety System Design: AFE881H1, AFE781H1
• Low Quiescent Current: 180µA (Typical)
• HART® Compliant Physical Layer Modem
• 16- or 14-Bit Monotonic High-Performance DAC
• 1.8V Supply: 0.15V to 1.25V, 0.2V to 1.0V
• 5V Supply: 0.3V to 2.5V, 0.4V to 2.0V
• 4-LSB INL at 16 Bits
• 0.07% FSR TUE from 40°C to +125°C (Maximum)
• 12-Bit 3.84kSPS ADC for Advanced Diagnostics
• Integrated 1.25V Reference with 10ppm/°C Drift (Maximum)
• Internal 1.2288-MHz oscillator with clock output
• Digital interfaces
• Serial peripheral interface (SPI): shared bus for DAC and HART
• Universal asynchronous receiver/transmitter (UART): shared bus for DAC and HART
• Two: SPI for DAC and UART for HART
• Fault detection: CRC bit error checking, windowed watchdog timer, diagnostic ADC
• Digital DAC slew rate control
• Wide operating temperature range: –55°C to +125°C

Typical applications

• Process control and industrial automation
• 2-wire, 4-mA to 20-mA loop-powered transmitters, Smart transmitters

More information

• Datasheet
• IC product information