AD7903BRQZ Simultaneous Sampling A/D Converters by Analog Devices

Status: Production
Series: AD7903
RoHS: Compliant
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The AD7903 is a dual 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDDx, per ADC. It contains two low power, high speed, 16-bit sampling ADCs and a versatile serial interface port. On the CNVx rising edge, the AD7903 samples the voltage difference between the INx+ and INx− pins. The voltages on these pins usually swing in opposite phases between 0 V and VREF. The externally applied reference voltage of the REFx pins (VREF) can be set independently from the supply voltage pins, VDDx. The power of the device scales linearly with throughput.Using the SDIx inputs, the SPI-compatible serial interface can also daisy-chain multiple ADCs on a single 3-wire bus and provide an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate VIOx supplies.The AD7903 is available in a 20-lead QSOP package with operation specified from −40°C to +125°C.

Where to Buy

Prices starting from US$17.66

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$17.66
198
in stock
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Logo for Newark Electronics
Newark Electronics
from US$30.02
15
in stock
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Logo for element14
element14
from US$30.32
15
in stock
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Logo for Farnell
Farnell
from US$28.53
15
in stock
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Logo for Chip One Stop
Chip One Stop
from US$28.10
2
in stock
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Features

16-bit resolution with no missing codes
Throughput: 1 MSPS
Low power dissipation
7.0 mW at 1 MSPS (VDD1 and VDD2 only)
12.0 mW at 1 MSPS (total)
140 µW at 10 kSPS
INL: ±0.5 LSB typical, ±2.0 LSB maximum
True differential analog input range: ±VREF
0 V to VREF with VREF between 2.4 V to 5.1 V
Allows use of any input range
Easy to drive with the ADA4941-1
SINAD: 93.5 dB at 1 kHz
THD: −112 dB at 1 kHz
No pipeline delay
Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
Serial interface SPI/QSPI/MICROWIRE/DSP compatible
20-lead QSOP package
Wide operating temperature range: −40°C to +125°C

Alternative Descriptions

Dual 16 bit Differential 1MSPS | Analog Devices
Adc, 16Bit, 1Msps, Qsop-20 | Newark Electronics
ADC, 16BIT, 1MSPS, QSOP-20 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD7903BRQZ?

Additional datasheets, footprints and schematics for AD7903BRQZ are listed on our Part Details page. You can also find images and similar parts to AD7903BRQZ on this page.

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Distributor pricing and stock information is available for AD7903BRQZ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AD7903BRQZ price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does AD7903BRQZ fall under?

The AD7903BRQZ is listed under Simultaneous Sampling A/D Converters.

Can I view similar or alternative parts?

You can view similar parts to AD7903BRQZ when available in the Simultaneous Sampling A/D Converters range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the AD7903BRQZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD7903BRQZ RoHS compliant?

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

Which authorised distributors for AD7903BRQZ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Chip One Stop have stock available or on a lead time for AD7903BRQZ.

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