FEATURES Dual 12-bit/14-bit, 2-channel ADC True bipolar analog inputs Programmable input ranges: ±10 V, ±5 V, 0 V to 10 V ±12 V with 3 V external reference Throughput rate: 1 MSPS Simultaneous conversion with read in less than 1μs High analog input impedance Low current consumption: 8.3 mA typical in normal mode 320nA typical in shutdown mode AD7366 72 dB SNR at 50 kHz input frequency 12-bit no missing codes AD7367 76 dB SNR at 50 kHz input frequency 14-bit no missing codes Accurate on-chip reference: 2.5 V ±0.2% –40°C to +85°C operation High speed serial interface SPI-/QSPI?-/MICROWIRE?-/DSP-compatible iCMOS? process technology Available in a 24-lead TSSOP
GENERAL DESCRIPTION The AD7366/AD7367 1 are dual, 12/14-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs) that feature throughput rates up to 1 MSPS. The device contains two ADCs, each preceded by a 2-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier. The AD7366/AD7367 are fabricated on the Analog Devices, Inc. industrial CMOS process (iCMOS? 2 ), which is a technology platform combining the advantages of low and high voltage CMOS. The process allows the AD7366/AD7367 to accept high voltage bipolar signals in addition to reducing power consumption and package size. The AD7366/AD7367 can accept true bipolar analog input signals in the ±10 V range, ±5 V range, and 0 V to 10 V range. The AD7366/AD7367 have an on-chip 2.5 V reference that can be disabled to allow the use of an external reference. If a 3 V reference is applied to the DCAPA andDCAPB pins, the AD7366/AD7367 can accept a true bipolar ±12 V analog input. Minimum ±12 V VDD and VSS supplies are required for the ±12 V input range. PRODUCT HIGHLIGHTS 1. The AD7366/AD7367 can accept true bipolar analog input signals, as well as ±10 V, ±5 V, ±12 V (with external reference), and 0 V to +10 V unipolar signals. 2. Two complete ADC functions allow simultaneous sampling and conversion of two channels. 3. 1 MSPS serial interface; SPI-/QSPI-/DSP-/MICROWIREcompatible interface.
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