AFEx8101 16-Bit and 14-Bit, Low-Power DACs With Voltage Reference and Diagnostic ADC for 4-mA to 20-mA Loop-Powered Applications

1 Features

Functional Safety-Capable
- Documentation available to aid functional safety system design: AFE88101, AFE78101
Low quiescent current: 170 µA (typ)
16-bit or 14-bit monotonic high-performance DAC
- 1.8-V supply: 0.15 V to 1.25 V, 0.2 V to 1.0 V
- 5-V supply: 0.3 V to 2.5 V, 0.4 V to 2.0 V
- 4-LSB INL at 16 bits
- 0.07% FSR (max) TUE from –40°C to +125°C
12-bit 3.84-kSPS ADC for advanced diagnostics
Integrated 1.25-V reference at 10 ppm/°C
Internal 1.2288-MHz oscillator with clock output
Digital interfaces:
- Serial peripheral interface (SPI)
- Universal asynchronous receiver-transmitter (UART)
Fault detection: CRC bit error checking, windowed watchdog timer, diagnostic ADC
Wide operating temperature: –55°C to +125°C