AD7091R-5

PRODUCTION

4-Channel, I²C, Ultralow Power 12-Bit ADC in 20-Lead LFCSP/TSSOP

Data Sheet (Rev. A) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.59

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Overview

I²C-compatible serial interface supports standard and fast modes
Ultralow 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

The AD7091R-5 is a 12-bit, multichannel, ultralow 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 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.

The AD7091R-5 offers four single-ended analog input channels with a channel sequencer that allows a preprogrammed selection of channels to be converted sequentially.

The AD7091R-5 uses advanced design techniques to achieve ultralow power dissipation without compromising performance. It also features flexible power management options. An on-chip configuration register allows the user to set up different operating conditions. These include power management, alert functionality, busy indication, channel sequencing, and general-purpose output pins. The MUX_OUT and ADC_IN pins allow signal conditioning of the multiplexer output before acquisition by the ADC.

Applications

Battery powered systems
- Personal digital assistants
- Medical instruments
- Mobile communications
Instrumentation and control systems
Data acquisition systems
Optical sensors
Diagnostic/monitoring functions

Part Models: 4
1ku List Price: Starting From $2.59

Documentation

Data Sheet 1

AD7091R-5: 4-Channel, I2C, Ultra Low Power, 12-Bit ADC in 20-Lead LFCSP/TSSOP Data Sheet (Rev.A) 08/03/2015

User Guide 1

UG-667: Evaluating the EVAL-AD7091R-5SDZ 12-Bit Monitor and Control System 08/03/2015

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD7091R-5BCPZ	20-Lead LFCSP (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7091R-5BCPZ-RL7	20-Lead LFCSP (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7091R-5BRUZ	20-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7091R-5BRUZ-RL7	20-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 23, 2014 - 13_0241 Qualification of ASE Chungli as an Alternate Assembly Site for Select 16L, 20L and 24L TSSOP Packages
		PCN13_0241_Form Material_Report Detailed Change Description Qualification Results Summary Qualification Results Summary
AD7091R-5BRUZ	PRODUCTION
AD7091R-5BRUZ-RL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 2

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Tools & Simulations

IBIS Model 1

AD7091R-5 IBIS Model

Evaluation Kits

AD7091R-5 Evaluation Board

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Features and Benefits

Full featured evaluation board for the EVAL-AD7091R-5SDZ
On-board power supplies Standalone capability
System demonstration platform (SDP) compatible (EVAL-SDP-CB1Z)
PC software for control and data analysis

Product Details

The EVAL-AD7091R-5SDZ is a fully featured evaluation board designed to allow you to evaluate the features of the AD7091R-5 analog-to-digital converters (ADCs). Control of the evaluation board occurs via the SDP connector (J13). The SDP board (EVAL-SDP-CB1Z) enables control of the evaluation board through the USB port of a PC using the evaluation board software available for download from the product page.

On-board components include: the ADA4805-1 low power, low noise rail-to-rail amplifier, the AD8031 high speed precision rail-to-rail op amp, the AD8032 high speed precision rail-to-rail dual op amp, the ADP3303 high accuracy 200 mA low dropout linear regulator, and the REF193 3.0 V precision micropower, low dropout, low voltage reference.