Product Details
●The AD7328 is an 8-channel, 12-bit plus sign, successive approximation ADC designed on the iCMOS (industrial CMOS) process._ i_CMOS is a process combining high voltage silicon with submicron CMOS and complementary bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, _i_CMOS components can accept bipolar input signals while providing increased performance, dramatically reduced power consumption, and reduced package size.
●The AD7328 can accept true bipolar analog input signals. The AD7328 has four software-selectable input ranges, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V. Each analog input channel can be independently programmed to one of the four input ranges. The analog input channels on the AD7328 can be programmed to be single-ended, true differential, or pseudo differential.
●The ADC contains a 2.5 V internal reference. The AD7328 also allows for external reference operation. If a 3 V reference is applied to the REFIN/OUT pin, the AD7328 can accept a true bipolar ±12 V analog input. Minimum ±12 V VDD and VSS supplies are required for the ±12 V input range. The ADC has a high speed serial interface that can operate at throughput rates up to 1 MSPS.
●Product Highlights
● 1. The AD7328 can accept true bipolar analog input signals, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V unipolar signals
● 2. The eight analog inputs can be configured as eight single-ended inputs, four true differential input pairs, four pseudo differential inputs, or seven pseudo differential inputs
● 3. 1 MSPS serial interface. SPI®-/QSPI™-/DSP-/MICROWIRE™-compatible interface
● 4. Low power, 30 mW, at a maximum throughput rate of 1 MSPS
● 5. Channel sequencer
●### Features and Benefits
● 12-Bit plus Sign SAR ADC
● True Bipolar Input Ranges
● Software Selectable Input Ranges: ± 10V, ± 5V, ± 2.5V, 0 to 10V
● Eight Analog Input Channels with Channel Sequencer
● Single Ended, True Differential and Pseudo Differential Analog Input Capability
● High Analog Input Impedance
● Low Power: 26 mW
● Full Power Signal Bandwidth: >13 MHz
● Internal 2.5 V Reference
● High Speed Serial Interface - 1 MSPS Throughput
● For four and two channel equivalent devices, see AD7324, AD7322
