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AD7091R-5

Analog Devices
Part Number AD7091R-5
Manufacturer Analog Devices
Description 12-Bit ADC
Published Mar 30, 2020
Detailed Description Data Sheet 4-Channel, I2C, Ultra Low Power, 12-Bit ADC in 20-Lead LFCSP/TSSOP AD7091R-5 12093-001 FEATURES I2C-compat...
Datasheet PDF File AD7091R-5 PDF File

AD7091R-5
AD7091R-5

Overview
Data Sheet 4-Channel, I2C, Ultra Low Power, 12-Bit ADC in 20-Lead LFCSP/TSSOP AD7091R-5 12093-001 FEATURES I2C-compatible serial interface supports standard and fast modes Ultra low power: 90 µW typical at 3 V in fast mode Specified for VDD of 2.
7 V to 5.
25 V On-chip accurate 2.
5 V reference, 5 ppm/°C typical drift 4 single-ended analog input channels ALERT function BUSY function Autocycle mode Wide input bandwidth 68 dB signal-to-noise ratio (SNR) typical at input frequency of 1 kHz Flexible power/throughput rate management No pipeline delays Power-down mode 550 nA typical at VDD = 5.
25 V 435 nA typical at VDD = 3 V 20-lead LFCSP and TSSOP packages Temperature range: −40°C to +125°C APPLICATIONS Battery-powered systems Personal digital assistants Medical instruments Mobile communications Instrumentation and control systems Data acquisition systems Optical sensors Diagnostic/monitoring functions GENERAL DESCRIPTION The AD7091R-5 is a 12-bit, multichannel, ultra low power, successive approximation analog-to-digital converter (ADC).
The AD7091R-5 operates from a single 2.
7 V to 5.
25 V power supply and typically consumes only 24 µA at a 3 V supply in fast mode.
The AD7091R-5 provides a 2-wire serial interface compatible with I2C interfaces.
The conversion process can be controlled by a sample mode via the CONVST/GPO1 pin, an autocycle mode selected through software control, or a command mode in which conversions occur across I2C write operations.
The device contains a wide bandwidth track-and-hold amplifier that can handle input frequencies up to 1.
5 MHz.
The AD7091R-5 also features an on-chip conversion clock, an on-chip accurate 2.
5 V reference, and a programmable out of bounds user alert function.
FUNCTIONAL BLOCK DIAGRAM MUXOUT ADCIN VDD RREEFFOINU/T REGCAP VIN0 VIN1 VIN2 VIN3 INPUT MUX 2.
5V VREF 12-BIT T/H SUCCESSIVE APPROXIMATION ADC CHANNEL SEQUENCER ON-CHIP OSC AD7091R-5 CONTROL LOGIC I2C INTERFACE RESET CONVST/GPO1 SDA SCL AS0 AS1 VDRIVE GN...


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