AD7658
250 kSPS, 6-Channel,SimultaneousSampling, Bipolar 12-Bit A/D Converter
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Features
- 6 independent ADCs
- True bipolar analog inputs
- Pin-/software-selectable ranges: ±10 V, ±5 V
- iCMOS process technology
- Low power
140 mW at 250 kSPS with 5 V supplies - Wide input bandwidth 86.5 dB SNR at 50 kHz input frequency
- On-chip reference and reference buffers
- Fast throughput rate: 250 kSPS
- Parallel, serial, and daisy-chain interface modes
- High speed serial interface SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible
- Standby mode: 100 µW maximum
- 64-lead LQFP
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The AD7656 / AD7657 / AD7658 contain six 16-/14-/12-bit, fast, low power, successive approximation ADCs all in the one package that is designed on the iCMOS™ process (industrial CMOS). iCMOS is a process combining high voltage silicon with submicron CMOS and complementary bipolar technologies. It enables the development of a wide range of high performance analog ICs, capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, which dramatically reduces power consumption and package size.
The AD7656 / AD7657 / AD7658 feature throughput rates up to 250 kSPS. The parts contain low noise, wide bandwidth, track-and-hold amplifiers that can handle input frequencies up to 12 MHz.
The conversion process and data acquisition are controlled using CONVST signals and an internal oscillator. Three CONVST pins allow independent, simultaneous sampling of the three ADC pairs. The AD7656 / AD7657 / AD7658 all have a high speed parallel and serial interface, allowing the devices to interface with microprocessors or DSPs. In serial interface mode, the parts have a daisy-chain feature that allows multiple ADCs to connect to a single serial interface. The AD7656 / AD7657 / AD7658 can accommodate true bipolar input signals in the ±4 × VREF range and ±2 × VREF range. The AD7656 / AD7657 / AD7658 also contain an on-chip 2.5 V reference.
For reduced decoupling requirements visit the AD7658-1 product page.
PRODUCT HIGHLIGHTS
- Six 16-/14-/12-bit, 250 kSPS ADCs on board.
- Six true bipolar, high impedance analog inputs.
- Parallel and high speed serial interfaces.
APPLICATIONS
- Power line monitoring systems
- Instrumentation and control systems
- Multi-axis positioning systems
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
Other places you can find help
Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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AD7658
Documentation
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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 |
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| AD7658BSTZ |
64-Lead LQFP (10mm x 10mm)
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| AD7658BSTZ-REEL |
64-Lead LQFP (10mm x 10mm)
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| AD7658YSTZ |
64-Lead LQFP (10mm x 10mm)
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- AD7658BSTZ
- Pin/Package Drawing
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64-Lead LQFP (10mm x 10mm)
- 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
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SamacSys
- AD7658BSTZ-REEL
- Pin/Package Drawing
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64-Lead LQFP (10mm x 10mm)
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- AD7658YSTZ
- Pin/Package Drawing
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64-Lead LQFP (10mm x 10mm)
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Dec 1, 2009
- 09_0258
AD7657 and AD7658 Data Sheet Update
AD7658BSTZ
PRODUCTION
AD7658BSTZ-REEL
PRODUCTION
AD7658YSTZ
PRODUCTION
Nov 16, 2009
- 06_0157
Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland
AD7658BSTZ
PRODUCTION
AD7658BSTZ-REEL
PRODUCTION
AD7658YSTZ
PRODUCTION
Jan 5, 2009
- 07_0077
Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
AD7658BSTZ
PRODUCTION
AD7658BSTZ-REEL
PRODUCTION
AD7658YSTZ
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Dec 1, 2009
- 09_0258
AD7657 and AD7658 Data Sheet Update
AD7658BSTZ
PRODUCTION
AD7658BSTZ-REEL
PRODUCTION
AD7658YSTZ
PRODUCTION
Nov 16, 2009
- 06_0157
Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland
AD7658BSTZ
PRODUCTION
AD7658BSTZ-REEL
PRODUCTION
AD7658YSTZ
PRODUCTION
Jan 5, 2009
- 07_0077
Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
AD7658BSTZ
PRODUCTION
AD7658BSTZ-REEL
PRODUCTION
AD7658YSTZ
PRODUCTION
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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High Voltage Op Amps ≥12V1 |
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Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp |
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Low Power Op Amps (≤ 1mA/amp) 1 |
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Low Power, 350 MHz Voltage Feedback Amplifiers |
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Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)3 |
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Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
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Ultralow Distortion, Ultralow Noise Op Amp (single) |
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Low Noise, High Speed Amplifier for 16-Bit Systems |
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Series Voltage References5 |
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PRODUCTION |
2.5V Micropower, Precisions Series Mode Voltage References |
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PRODUCTION |
2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown |
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PRODUCTION |
Ultralow Noise, LDO XFET® 2.5V Voltage Reference w/Current Sink and Source |
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PRODUCTION |
Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
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PRODUCTION |
2.5V Precision Micropower, Low Dropout, Low Voltage Reference |
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Shunt Voltage References1 |
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PRODUCTION |
2.5 V/3.0 V High Precision Reference |
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| Parts | Product Life Cycle | Description |
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PRODUCTION |
8-Channel DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC |
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits 1
EVAL-AD7658
AD7658 Evaluation Kit
Product Detail
The EVAL-AD7658CBZ is a fully featured evaluation kit for the AD7658. 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.
