ADCS8162

1.       General Description

The ADCS8162 is 16-bit, simultaneous sampling, analog-to-digital data acquisition systems (DAS) with 8-channels, respectively. Each part contains analog input clamp protection, a second-order antialiasing filter, a 16-bit charge redistribution successive approximation analog-to- digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.

The ADCS8162 operate from a single 5 V supply and can accommodate ±10 V and ±5 V true bipolar input signals while sampling at throughput rates up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ±16.5 V. The ADCS8162 has 1 MΩ analog input impedance regardless of sampling frequency. The single supply operation, on-chip filtering, and high input impedance eliminate the need for driver op amps and external bipolar supplies.

The ADCS8162 antialiasing filter has a 3 dB cutoff frequency of 22 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the 3 dB bandwidth.

2.       Features and Benefits

Single-Supply Operation from 2.5V~ 5.5V

8 simultaneously sampled inputs

True bipolar analog input ranges: ±10 V, ±5 V

Single 5 V analog supply and 2.3 V to 5 V VDRIVE

Analog input clamp protection

Input buffer with 1 MΩ analog input impedance

Second-order antialiasing analog filter

On-chip accurate reference and reference buffer with 5ppm/℃ drift

16-bit ADC with 200 kSPS on all channels

Oversampling capability with digital filter

Flexible parallel/serial interface SPI/QSP/MICROWIR /DSP  compatible

Performance

7 kV ESD rating on analog input channels 89 dB SNR, −106 dB THD

±0.5 LSB INL, ±0.5 LSB DNL

Low power: 130 mW Standby mode: 35 mW

Temperature range: −40°C to 125°C

64-lead LQFP package

3.       Applications

Power-line monitoring and protection systems

Multiphase motor control

Instrumentation and control systems

Multiaxis positioning systems

Data acquisition systems (DAS)

4.       Device Information

*Refer to the Ordering Information for more