Applications Battery powered systems Personal digital assistants Medical instruments Mobile communications Instrumentation and control systems Data acquisition systems Optical sensors Diagnostic/monitoring functions
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.
Features and Benefits
| Analog to Digital ConvertersIBIS Models
Reference Designs |
Document | note |
AD7091R-5: 4-Channel, I2C, Ultralow Power, 12-Bit ADC in 20-Lead LFCSP/TSSOP Data Sheet (Rev. 0) | PDF 692.35 K |
Document | note |
UG-667: Evaluating the EVAL-AD7091R-5SDZ 12-Bit Monitor and Control System | PDF 1.31 M |
Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
---|---|---|---|---|---|---|
AD7091R-5BCPZ Production | 20 ld LFCSP (4x4mm 2.5EP) | OTH 490 | 2.48 | 2.1 | Y | |
AD7091R-5BCPZ-RL7 Production | 20 ld LFCSP (4x4mm 2.5EP) | REEL 1500 | 0 | 2.1 | Y | |
AD7091R-5BRUZ Production | 20 ld TSSOP | OTH 75 | 2.91 | 2.47 | Y | |
AD7091R-5BRUZ-RL7 Production | 20 ld TSSOP | REEL 1000 | 0 | 2.47 | Y |
Part Number | Description | Price | RoHS |
---|---|---|---|
EVAL-AD7091R-5SDZ | Evaluation Board | 99 | Y |
EVAL-SDP-CB1Z | Evaluation Controller Board SDP | 99 | Y |