AD7657BSTZ Simultaneous Sampling A/D Converters by Analog Devices

Simultaneous Sampling A/D Converters
Status: Production
Series: AD7657
RoHS: Compliant
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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 AD7657-1 product pagePRODUCT HIGHLIGHTS Six 16-/14-/12-bit, 250 kSPS ADCs on board. Six true bipolar, high impedance analog inputs. Parallel and high speed serial interfaces.

Where to Buy

Prices starting from US$17.63

Distributor Stock
Logo for Newark Electronics
Newark Electronics
from US$24.00
18
in stock
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Logo for element14
element14
from US$19.71
18
in stock
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Logo for Farnell
Farnell
from US$18.67
18
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$17.63
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Features

6 independent ADCs
True bipolar analog inputs
Pin-/software-selectable ranges: ±10 V, ±5 V
Fast throughput rate: 250 kSPS
iCMOS process technology
Wide input bandwidth 86.5 dB SNR at 50 kHz input frequency
Low power 140 mW at 250 kSPS with 5 V supplies
On-chip reference and reference buffers
Parallel, serial, and daisy-chain interface modes
High speed serial interface SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible
Standby mode: 100 µW maximum
64-lead LQFP

Alternative Descriptions

Adc, 14Bit, 250Ksps, Lqfp-64 | Newark Electronics
ADC, 14BIT, 250KSPS, LQFP-64 | element14
CONVERTER - ADC | Richardson RFPD

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD7657BSTZ?

Additional datasheets, footprints and schematics for AD7657BSTZ are listed on our Part Details page. You can also find images and similar parts to AD7657BSTZ on this page.

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What category does AD7657BSTZ fall under?

The AD7657BSTZ is listed under Simultaneous Sampling A/D Converters.

Can I view similar or alternative parts?

You can view similar parts to AD7657BSTZ when available in the Simultaneous Sampling A/D Converters range under the specifications section at the bottom of the details page.

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Is the AD7657BSTZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD7657BSTZ have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for AD7657BSTZ.

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