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.
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
APPLICATIONS
Portable battery-powered instruments
Personal computers
Smart battery chargers
Telecommunications systems
Electronic text equipment
Domestic appliances
Process control