ADT7517-KGD Datasheet

• Four 10-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 2.28 V
• Temperature range: −40°C to +120°C
• Temperature sensor accuracy: ±3°C typical
• Supply range: 2.7 V to 5.5 V
• DAC output range: 0 V to VDD
• Power-down current: <10 μA
• Internal 2.28 V_REF 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
• Compatible with SPI, I²C, QSPI, MICROWIRE, and DSP
• Support for SMBus packet error checking (PEC)
• Known good die (KGD): a die that is tested and guaranteed over the full specifications of the data sheet 

• Process control
• Smart battery chargers
• Portable equipment

The ADT7517-KGD combines a 10-bit temperature-to-digital converter, a 10-bit, 4-channel ADC, and a quad 10-bit DAC in die form. The ADT7517-KGD 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 ADT7517-KGD operates from a single 2.7 V to 5.5 V supply. The input voltage range on the ADC channels is 0 V to 2.28 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 μs typical.

The ADT7517-KGD provides two serial interface options: a 4-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE®, and DSP interface standards, and a 2-wire SMBus/I²C interface. The ADT7517-KGD features a standby mode that is controlled through the serial interface.

The reference for the four DACs is derived either internally or from a reference pad. The outputs of all DACs can be updated simultaneously using the software LDAC function or the external LDAC pad. The ADT7517-KGD incorporates a power-on reset circuit, ensuring that the DAC output powers up to 0 V and remains at 0 V until a valid write takes place.

Additional application and technical information can be found in the ADT7517 data sheet.