ADT7516 Datasheet

• ADT7516 - Four 12-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: ±0.5°C typ
• Supply range: 2.7 V to 5.5 V
• DAC output range: 0 V to 2 V_REF
• Power-down current: <10 µA

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

The ADT7516 combine a 10-bit temperature-to-digital converter, a 10-bit 4-channel ADC, and a quad 12-bit DAC, respectively, in a 16-lead QSOP package. The parts also include 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 ADT7516 operate 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 V_DD, with an output voltage settling time of 7 µs typical.

The ADT7516 provide 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. They feature a standby mode that is controlled through the serial interface.

The reference for the four DACs is derived either internally or from a reference pin. The outputs of all DACs can be updated simultaneously using the software LDAC function or the external LDAC pin. The ADT7516 incorporate a power-on reset circuit, ensuring that the DAC output powers up to 0 V and remains there until a valid write takes place.

The wide supply voltage range, low supply current, and SPI-/ I²C-compatible interface of the ADT7516 make them ideal for a variety of applications, including personal computers, office equipment, and domestic appliances.