AD7266BCPZ Analog to Digital Converters - ADC Dual 2 MSPS, 12-Bit,
3Chan Sars ADC I.C.
AD7266 Differential/Single-Ended Input, Dual 2 MSPS, 12-Bit,
3-Channel SAR ADC
Features
Dual 12-bit, 3-channel ADC
Throughput rate: 2 MSPS
Specified for VDD of 2.7 V to 5.25 V
Power consumption
9 mW at 1.5 MSPS with 3 V supplies
27 mW at 2 MSPS with 5 V supplies
Pin-configurable analog inputs
12-channel single-ended inputs
6-channel fully differential inputs
6-channel pseudo differential inputs
70 dB SNR at 50 kHz input frequency Accurate on-chip reference: 2.5
V
±0.2% maximum @ 25°C, 20 ppm/°C maximum Dual conversion with read
437.5 ns, 32 MHz SCLK
High speed serial interface SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible
−40°C to +125°C operation
Shutdown mode: 1 μA maximum 32-lead LFCSP and 32-lead TQFP
1 MSPS version, AD7265
PRODUCT HIGHLIGHTS
1. Two Complete ADC Functions Allow Simultaneous Sampling and
Conversion of Two Channels. Each ADC has three fully/pseudo
differential pairs, or six single-ended channels, as programmed.
The conversion result of both channels is simultaneously available
on separate data lines, or in succession on one data line if only
one serial port is available.
2. High Throughput with Low Power Consumption. The AD7266 offers a
1.5 MSPS throughput rate with 11.4 mW maximum power dissipation
when operating at 3 V.
3. The AD7266 offers both a standard 0 V to VREF input range and a
2 × VREF input range.
4. No Pipeline Delay. The part features two standard successive
approximation ADCs with accurate control of the sampling instant
via a CS input and once off conversion control. 1 Protected by U.S.
Patent No. 6,681,332
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