ADT7411

SPI®-/I2C®-Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC ADT7411 FEATURES 10-bit temperature-to-digital converter 10-bit 8-channel ADC DC input bandwidth Input range: 0 V to 2.25 V and 0 V to VDD Temperature range: −40°C to +120°C Temperature sensor accuracy of ±0.5°C Supply range: 2.7 V to 5.5 V Power-down current : <10 μA Internal 2.25 VREF option Double-buffered input logic I2C, SPI, QSPI™, MICROWIRE™, and DSP compatible 4-wire serial interface SMBus packet error checking (PEC) compatible 16-lead QSOP APPLICATIONS Portable battery-powered instruments PCs Smart battery chargers Telecommunications systems electronic test equipment Domestic appliances Process controls GENERAL DESCRIPTION The ADT74111 combines a 10-bit temperature-to-digital converter and a 10-bit 8-channel ADC in a 16-lead QSOP. This 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 ADT7411 operates from a single 2.7 V to 5.5 V supply. The input voltage on the ADC channels has a range of 0 V to 2.25 V and the input bandwidth is dc. The reference for the ADC channels is derived internally. The ADT7411 provides two serial interface options: a 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, and a 2-wire SMBus/I2C interface. It features a standby mode that is controlled via the serial interface. PIN CONFIGURATION AIN6 1 AIN5 2 NC 3 CS 4 GND 5 VDD 6 D+/AIN1 7 D–/AIN2 ...