The AD7366/AD7367 are dual 12-bit/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 (iCMOS1), which is a technology platform combining the advantages of low and high voltage CMOS. The iCMOS 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 and DCAPB 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-/MICROWIRE-compatible interface.
2 _i_CMOS Process Technology. For analog systems designers within industrial/instrumentation equipment OEMs who need high performance ICs at higher voltage levels, _i_CMOS is a technology platform that enables the development of analog ICs capable of 30 V and operating at ±15 V supplies while allowing dramatic reductions in power consumption and package size, and increased ac and dc performance.
### Features and Benefits
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 1 μs
Low current consumption:
8.3 mA typical in normal mode
320 nA typical in shutdown mode
High analog input impedance
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 Compatible with SPI®, QSPI™, MICROWIRE™, and DSP
