AD7994 4 Channel, 12-Bit ADC with I2C Compatible Interface in 16-Lead TSSOP

The AD7994 is a 4 channel, 12-bit, high speed, low power, successive-approximation ADC. The part operates from a single 2.7 V to 5.5 V power supply and features a conversion time of 2 µs. The part contains a four channel multiplexer and track/hold amplifier.

The AD7994 provides a two-wire serial interface which is compatible with I2C interfaces. The part comes in two versions, AD7994-0 and AD7994-1. Each version allows for a minimum of two different I2C addresses. The I2C interface on the AD7994-0 supports Standard and Fast I2C Interface Modes. The I2C interface on the AD7994-1 supports Standard, Fast and two High-Speed I2C Interface Modes.

Features and Benefits
  • 12-Bit ADC with Fast Conversion Time: 2 µs
  • Four Single-Ended Analog Input Channels
  • Specified for VDD of 2.7 V to 5.5 V
  • Low Power Consumption
  • Fast Throughput Rate: - 188 kSPS
  • Sequencer Operation
  • Automatic Cycle Mode
  • I2C® Compatible Serial Interface
  • I2C® Interface supports:
  • Standard, Fast, and High-Speed Modes
  • Out of Range Indicator
  • Pin-Selectable Addressing via AS
  • Automatic Shutdown Mode: - 1 µA max
Analog to Digital Converters
Software & Systems Requirements
Data Sheets
Documentnote
AD7993/AD7994: 4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP Data Sheet (Rev. 0)PDF 1073 kB
AD7994/AD7993: Errata Sheet (Rev. A)PDF 52 kB
Application Notes
Documentnote
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)PDF 299 kB
AN-686: Implementing an I2C® Reset (Rev. 0)PDF 44 kB
Product Highlight
Documentnote
8- to 18-Bit SAR ADCs ... From the Leader in High Performance AnalogPDF 1885 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7994BRU-0 Last Time Buy16 ld TSSOPOTH 96-40 to 125C00N
AD7994BRU-0REEL Last Time Buy16 ld TSSOPREEL 2500-40 to 125C00N
AD7994BRUZ-0 Production16 ld TSSOPOTH 96-40 to 125C4.784.01Y
AD7994BRUZ-0REEL Production16 ld TSSOPREEL 2500-40 to 125C04.01Y
AD7994BRUZ-1 Production16 ld TSSOPOTH 96-40 to 125C5.154.32Y
AD7994BRUZ-1REEL Production16 ld TSSOPREEL 2500-40 to 125C04.32Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-AD7994EBZEvaluation Board59Y
Reference Materials
AD7993/AD7994: 4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP Data Sheet (Rev. 0) ad7993
AD7994/AD7993: Errata Sheet (Rev. A) ad7993
AD7993/AD7994 Evaluation Software ad7993
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0) ad7476
AN-686: 实现I²C®复位 (Rev. 0) adg729
AN-931: 了解PulSAR ADC支持电路 (Rev. 0) ad7476
AN-686: Implementing an I2C® Reset (Rev. 0) ad7993
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog ad7893
MS-2210:高速ADC的电源设计 ad9861