深圳市中立信电子科技有限公司

AD7682BCPZRL7

模数转换器 - ADC 16-Bit 4Ch/8Ch 250kSPS 16-Bit, 8-Channel,  250 kSPS PulSAR ADC

GENERAL DESCRIPTION AD7682BCPZRL7

The AD7682BCPZRL7 AD7689-KGD is a 8-channel, 16-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single power supply, VDD.

The AD7689-KGD contains all components for use in a multichannel, low power data acquisition system, including a true 16-bit SAR ADC with no missing codes; an 8-channel low crosstalk multiplexer that is useful for configuring the inputs as single-ended (with or without ground sense), differential, or bipolar; an internal low drift reference (selectable 2.5 V or 4.096 V) and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order.

FEATURES AD7682BCPZRL7

16-bit resolution with no missing codes

8-channel multiplexer with choice of inputs

Unipolar single-ended

Differential (GND sense)

Pseudobipolar

Throughput: 250 kSPS

INL: −2.5 LSB minimum, ±0.4 LSB typical, +2.5 LSB maximum

Dynamic range: 93.8 dB

SINAD: 91 dB typical at 20 kHz, VREF = 5 V

THD: −100 dB at 20 kHz

Analog input range: 0 V to VREF with VREF up to VDD