Datasheet Analog Devices AD7890SQ-2 — 数据表

LC2MOS 8-Channel, 12-Bit
Serial Data Acquisition System
AD7890
FUNCTIONAL BLOCK DIAGRAM Fast 12-bit ADC with 5.9 μs conversion time
Eight single-ended analog input channels
Selection of input ranges:
±10 V for AD7890-10
0 V to 4.096 V for AD7890-4
0 V to 2.5 V for AD7890-2
Allows separate access to multiplexer and ADC
On-chip track/hold amplifier
On-chip reference
High-speed, flexible, serial interface
Single supply, low-power operation (50 mW maximum)
Power-down mode (75 μW typ) GENERAL DESCRIPTION VDD VIN1 SIGNAL
SCALING1 VIN2 SIGNAL
SCALING1 VIN3 SIGNAL
SCALING1 VIN4 SIGNAL
SCALING1 VIN5 SIGNAL
SCALING1 VIN6 SIGNAL
SCALING1 VIN7 SIGNAL
SCALING1 VIN8 SIGNAL
SCALING1 AD7890 The AD7890 is an 8-channel 12-bit data acquisition system. The …