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2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
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Data Sheet 2.7 V to 5.25 V, Micropower, 2-Channel,
125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887 FEATURES FUNCTIONAL BLOCK DIAGRAM Specified for VDD of 2.7 V to 5.25 V
Flexible power/throughput rate management
Shutdown mode: 1 μA max
One or two single-ended inputs
Serial interface: SPI®/QSPI™/MICROWIRE™/DSP compatible
8-lead narrow SOIC and MSOP packages
Qualified for automotive applications AD7887 AIN0 I/P
MUX T/H AIN1/
VREF VDD APPLICATIONS 2.5V
REF
AIN1/VREF
SOFTWARE
CONTROL
LATCH COMP BUF GND CHARGE
REDISTRIBUTION
DAC Battery-powered systems (personal digital assistants,
medical instruments, mobile communications)
Instrumentation and control systems
High speed modems SAR + ADC
CONTROL LOGIC DIN CS DOUT SCLK 06191-001 SPORT Figure 1. GENERAL DESCRIPTION
The AD7887 is a high speed, low power, 12-bit analog-to-digital …