ADT7518

SPI/I2C Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output DAC ADT7518 FEATURES Four 8-bit DACs Buffered voltage output Guaranteed monotonic by design over all codes 10-bit temperature-to-digital converter 10-bit 4-channel ADC DC input bandwidth Input range: 0 V to 2.25 V Temperature range: –40°C to +120°C Temperature sensor accuracy of typ: ±0.5°C Supply range: 2.7 V to 5.5 V DAC output range: 0 V to 2 VREF Power-down current: 1 µA Internal 2.25 VREF option Double-buffered input logic Buffered reference input Power-on reset to 0 V DAC output Simultaneous update of outputs (LDAC function) On-chip rail-to-rail output buffer amplifier SPI®, I2C®, QSPI™, MICROWIRE™, and DSP-compatible 4-wire serial interface SMBus packet error checking (PEC)-compatible 16-lead QSOP package GENERAL DESCRIPTION The ADT75181 combines a 10-bit temperature-to-digital converter, a 10-bit 4-channel ADC, and a quad 8-bit DAC, in a 16-lead QSOP package. The part also includes a band gap temperature sensor and a 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C. The ADT7518 operates from a single 2.7 V to 5.5 V supply. The input voltage range on the ADC channels is 0 V to 2.25 V, and the input bandwidth is dc. The reference for the ADC channels is derived internally. The output voltage of the DAC ranges from 0 V to VDD, with an output voltage settling time of 7 ms typical. The ADT7518 provides two serial interface options: a 4-wire serial interface th...