The AD7684 is a 16-bit, 100 kSPS differential ADC from Analog Devices. It features 16-bit resolution, 100 kSPS throughput, ±1 LSB typical full-scale linearity, ±3 LSB maximum full-scale linearity, ±VREF differential input range, 2.7 V to 5.5 V single-supply operation, SPI-®/QSPI-™/MICROWIRE-™/DSP-compatible serial interface, 4 mW @ 5 V, 1.5 mW @ 2.7 V, 150 µW @ 2.7 V/10 kSPS power consumption, 1 nA standby current, and an 8-lead MSOP package. The AD7684 is primarily used in battery-powered equipment, data acquisition, instrumentation, medical instruments, and process control applications.
The AD7684 from Analog Devices is a 16‑bit successive‑approximation ADC that operates from a single supply (2.7 V to 5.5 V). It offers a throughput of 100 kSPS, no missing codes, and a low standby current of 1 nA. The device is supplied in an 8‑lead MSOP package and is suited for battery‑powered equipment, data acquisition, instrumentation, medical instruments, and process control.
The datasheet provides detailed electrical specifications, timing diagrams, pin descriptions, and absolute maximum ratings. It also includes an ordering guide, package dimensions, and terminology definitions for key performance parameters such as INL, DNL, SNR, and ENOB.
| Resolution | 16 Bits |
|---|---|
| Power Supply Voltage (VDD) | 2.7 V to 5.5 V |
| Power Dissipation (5 V) | 4 mW |
| Standby Current | 1 nA |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 8‑lead MSOP |
| Integral Linearity Error (INL) | +1 LSB typ, +3 LSB max |
The AD7684 provides a 16‑bit resolution with no missing codes.
It operates from a single supply voltage between 2.7 V and 5.5 V.
Power dissipation is 4 mW when powered at 5 V.
The standby current is specified as 1 nA.