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Features
- Fast Throughput Rate: 1 MSPS
- Specified for VDD of 2.35 V to 5.25 V
- Low Power:
4.8 mW typ at 1 MSPS with 3 V Supplies
15.5 mW typ at 1 MSPS with 5 V Supplies - Wide Input Bandwidth:
71.4 dB min SNR at 100 kHz Input Frequency - Flexible Power/Serial Clock Speed Management
- No Pipeline Delays
- High Speed Serial Interface SPI®/QSPI™/MICROWIRE™/DSP Compatible
- Standby Mode: 1 µA max
- Daisy Chain Mode
- 8-Lead TSOT Package
- 8-Lead MSOP Package
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The AD7912 / AD7922 are 10-bit and 12-bit, high speed, low power, 2-channel, successive-approximation ADCs respectively. The parts operate from a single 2.35 V to 5.25 V power supply and feature through put rates up to 1 MSPS. The parts contain a low-noise, wide bandwidth track/hold amplifier, which can handle input frequencies in excess of 6 MHz.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipeline delays associated with the part. The channel to be converted is selected through the DIN pin and the mode of operation is controlled by CS. The serial data stream from the DOUT pin has a channel identifier bit and a mode identifier bit, which provide information about the channel converted and the current mode of operation.
As a result of the Daisy Chain mode of operation, several AD7912 / AD7922 can be connected together in Daisy Chain configuration. The Daisy Chain mode allows the user to read the conversion result from the ADCs contained in the chain.
Several AD7912 / AD7922 can be connected together in a daisy chain. The AD7912 / AD7922 feature a daisy-chain mode that allows the user to read the conversion results from the ADCs contained in the chain. The AD7912/AD7922 use advanced design techniques to achieve very low power dissipation at high throughput rates. The reference for the part is taken internally from VDD, thereby allowing the widest dynamic input range to the ADC.
PRODUCT HIGHLIGHTS
- 2-channel, 1 MSPS, 10-/12-bit ADCs in TSOT package.
- High throughput with low power consumption.
- Flexible power/serial clock speed management.
The conversion rate is determined by the serial clock. The parts also feature a power-down mode to maximize power efficiency at lower throughput rates. Average power consumption is reduced when the power-down mode is used while not converting. Current consumption is 1 µA maximum and 50 nA typically when in power-down mode. - Daisy-chain mode.
- No pipeline delay.
The parts feature a standard successive approximation ADC with accurate control of the sampling instant via a CS input and once-off conversion control.
APPLICATIONS
- Battery-powered systems:
Personal digital assistants
Medical instruments
Mobile communications - Instrumentation and control systems
- Data acquisition systems
- High speed modems
- Optical sensors
Ask a Question
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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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AD7922
Documentation
Filters
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Documentation
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 |
|---|---|---|---|
| AD7922ARMZ |
8-Lead MSOP
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| AD7922ARMZ-REEL |
8-Lead MSOP
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| AD7922ARMZ-REEL7 |
8-Lead MSOP
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| AD7922AUJZ-REEL7 |
8-Lead TSOT
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- AD7922ARMZ
- Pin/Package Drawing
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8-Lead MSOP
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
-
SamacSys
- AD7922ARMZ-REEL
- Pin/Package Drawing
-
8-Lead MSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7922ARMZ-REEL7
- Pin/Package Drawing
-
8-Lead MSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7922AUJZ-REEL7
- Pin/Package Drawing
-
8-Lead TSOT
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Mar 22, 2021
- 21_0001
Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
Jan 5, 2015
- 14_0246
Qualification of ASE Chungli, as an Alternate Assembly Site for Select MSOP Devices
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
May 15, 2012
- 10_0006
Halogen Free Material Change for mini SOIC Products
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
Feb 8, 2010
- 04_0080
Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
AD7922AUJZ-REEL7
PRODUCTION
Apr 16, 2018
- 16_0288
CANCELLED: Addition of Amkor Philippines as Alternate Assembly Site for 6L and 8L TSOT Chip-On-Lead Packages
AD7922AUJZ-REEL7
PRODUCTION
Jan 26, 2010
- 10_0007
Halogen Free Material Change for TSOT Products
AD7922AUJZ-REEL7
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Mar 22, 2021
- 21_0001
Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
Jan 5, 2015
- 14_0246
Qualification of ASE Chungli, as an Alternate Assembly Site for Select MSOP Devices
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
May 15, 2012
- 10_0006
Halogen Free Material Change for mini SOIC Products
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
Feb 8, 2010
- 04_0080
Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
AD7922ARMZ
PRODUCTION
AD7922ARMZ-REEL7
PRODUCTION
AD7922AUJZ-REEL7
PRODUCTION
Apr 16, 2018
- 16_0288
CANCELLED: Addition of Amkor Philippines as Alternate Assembly Site for 6L and 8L TSOT Chip-On-Lead Packages
AD7922AUJZ-REEL7
PRODUCTION
Jan 26, 2010
- 10_0007
Halogen Free Material Change for TSOT Products
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
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High Speed Op Amps (Bandwidth ≥ 50MHz)1 |
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PRODUCTION |
Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp |
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Low Power Op Amps (≤ 1mA/amp) 1 |
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PRODUCTION |
2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier |
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Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)3 |
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PRODUCTION |
Ultralow Distortion, Ultralow Noise Op Amp (Dual) |
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PRODUCTION |
Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
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PRODUCTION |
Precision, Low Noise, CMOS, RRIO Op Amp (single) |
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Series Voltage References4 |
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PRODUCTION |
2.5V Precision Micropower, Low Dropout, Low Voltage Reference |
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PRODUCTION |
Ultraprecision, Low Noise, 2.500 V XFET® Voltage References |
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PRODUCTION |
3.0V Precision Micropower, Low Dropout, Low Voltage Reference |
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PRODUCTION |
Ultralow Noise XFET® 3.0V Voltage Reference w/Current Sink and Source Capability |
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| Parts | Product Life Cycle | Description |
|---|---|---|
|
PRODUCTION |
2-Channel, 1 MSPS, Ultralow Power, 12-Bit ADC in 16-Lead TSSOP |
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits 1
EVAL-AD7922
AD7922 Evaluation kit
Product Detail
The EVAL-AD7922CBZ is a fully featured evaluation kit for the AD7922. This board operates in stand alone mode or in conjunction with the Evaluation Controller board . When operated with the Evaluation Controller board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Evaluation Controller board.
