1 Features

1• Sample rate: 100 kHz

• No latency output

• Unipolar, single-ended input range:

0 to +VREF

• SPI™-compatible serial interface with

daisy-chain option

• Excellent AC and DC performance:

– SNR: 93 dB, THD: –108 dB

– INL: ±1.0 LSB (typ), ±2.0 LSB (max)

– DNL: ±1.0 LSB (max), 16-bit NMC

• Wide operating range:

– AVDD: 2.7 V to 3.6 V

– DVDD: 1.65 V to 3.6 V

(independent of AVDD)

– REF: 2.5 V to 5 V (independent of AVDD)

– Operating temperature: –40°C to +85°C

• Low-power dissipation:

– 0.7 mW at 100 kSPS

– 70 μW at 10 kSPS

• Power-down current (AVDD): 50 nA

• Full-scale step settling to 16 Bits: 1200 ns

• Packages: VSSOP-10 and VSON-10

2 Applications

• Automatic test equipment (ATE)

• Instrumentation and process controls

• Precision medical equipment

• Low-power, battery-operated instruments

3 Description

The ADS8866 is a 16-bit, 100-kSPS, single-ended

input, analog-to-digital converter (ADC). The device

operates with a 2.5-V to 5-V external reference,

offering a wide selection of signal ranges without

additional input signal scaling. The reference voltage

setting is independent of, and can exceed, the analog

supply voltage (AVDD).

The device offers an SPI-compatible serial interface

that also supports daisy-chain operation for

cascading multiple devices.

The device supports unipolar single-ended analog

inputs in the range of –0.1 V to VREF + 0.1 V.

Device operation is optimized for very low-power

operation. Power consumption directly scales with

speed. This feature makes the ADS8866 excellent for

lower-speed applications.