Analog Devices Inc. AD7091R-2/-4/-8 Ultralow Power 12-Bit ADCs
Analog Devices Inc. AD7091R-2/AD7091R-4/AD7091R-8 Ultralow Power 12-Bit ADCs feature multichannel 12-bit, ultralow power, successive approximation analog-to-converters (ADC) available in two, four, or eight analog input channel options. The AD7091R-2/AD7091R-4/AD7091R-8 operate from a single 2.7V to 5.25V power supply and can achieve a sampling rate of 1 mega samples per second (MSPS). The AD7091R-2/ AD7091R-4/AD7091R-8 contain a wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 1.5 MHz. The AD7091R-2/AD7091R-4/AD7091R-8 also feature an on-chip conversion clock, an on-chip accurate 2.5V reference, and a high speed serial interface.
Features
- Fast throughput rate of 1MSPS
- Specified for VDD of 2.7V to 5.25V
- Ultralow power: 467μA typical at 3V and 1 MSPS
- 2, 4, and 8 single-ended analog input channels
- Programmable channel sequencer
- ALERT function available in 4- and 8-channel versions
- BUSY indication available in 4- and 8-channel versions
- GPOx pins available in 4- and 8-channel versions
- Wide input bandwidth
- 70dB signal-to-noise ratio (SNR) typical at input frequency of 10kHz
- Flexible power/throughput rate management
- No pipeline delays
- High speed serial interface
- SPI/QSPI™/MICROWIRE™/DSP compatible
- Daisy-chain mode
- Power-down mode
- 550nA typical at VDD = 5.25V
- 435nA typical at VDD = 3V
- 16-lead, 20-lead, and 24-lead 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
Associated Products
Analog Devices Inc. AD7091 & AD7091R Ultralow Power 12-Bit ADCs
12-bit successive approximation ADCs offer ultra-low power consumption with fast throughput rates.
Functional Block Diagram
Zveřejněno: 2014-04-08
| Aktualizováno: 2022-03-11