AD7091R-5
PRODUCTION4-Channel, I2C, Ultralow Power 12-Bit ADC in 20-Lead LFCSP/TSSOP
- Part Models
- 4
- 1ku List Price
- Starting From $2.59
Part Details
- 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 MUXOUT and ADCIN 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
Documentation
Data Sheet 1
User Guide 1
Video 1
Circuit Note 1
Device Drivers 2
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) | ||
| AD7091R-5BCPZ-RL7 | 20-Lead LFCSP (4mm x 4mm w/ EP) | ||
| AD7091R-5BRUZ | 20-Lead TSSOP | ||
| AD7091R-5BRUZ-RL7 | 20-Lead TSSOP |
| 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 |
||
| AD7091R-5BRUZ | PRODUCTION | |
| AD7091R-5BRUZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 2
Evaluation Software 0
Can't find the software or driver you need?
Tools & Simulations
IBIS Model 1
Evaluation Kits
AD7091R-5 Evaluation Board
Resources
Reference Designs
Ultralow Power, General-Purpose, Multichannel Data Acquisition System with Energy Harvesting Circuit and Alert Function