AD9221 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD9221
Manufacturer

ADI
ChipWorker Part#

CW389486330
RoHS

Lead free / RoHS Compliant
Description

Complete 12Bit 1.25MSPS Monolithic A/D Converter
Documentation

Datasheet

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AD9221 Specifications

Attribute	Attribute Value

Part Number	AD9221
Manufacturer	ADI
ChipWorker Part#	CW389486330
Documentation	Datasheet
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Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The AD9221, AD9223, and AD9220 are a generation of high performance, single supply 12-bit analog-to-digital converters. Each device exhibits true 12-bit linearity and temperature drift performance1 as well as 11.5 bit or better ac performance2. The AD9221/AD9223/AD9220 share the same interface options, package, and pinout. Thus, the product family provides an upward or downward component selection path based on performance, sample rate and power. The devices differ with respect to their specified sampling rate and power consumption which is reflected in their dynamic performance over frequency.
The AD9221/AD9223/AD9220 combine a low cost, high speed single-CMOS process and a novel architecture to achieve the resolution and speed of existing hybrid and monolithic implementations at a fraction of the power consumption and cost. Each device is a complete, monolithic ADC with an on-chip, high performance, low noise sample-and-hold amplifier and programmable voltage reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application. The devices use a multistage differential pipelined architecture with digital output error correction logic to provide 12-bit accuracy at the specified data rates and to guarantee no missing codes over the full operating temperature range.
The input of the AD9221/AD9223/AD9220 is highly flexible, allowing for easy interfacing to imaging, communications, medical, and data-acquisition systems. A truly differential input structure allows for both single-ended and differential input sample-interfaces of varying input spans. The sample-and-hold (SHA) amplifier is equally suited for both multiplexed systems that switch full-scale voltage levels in successive channels as well as sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. Also, the AD9221/AD9223/AD9220 is well suited for communication systems employing IF Down Conversion since the SHA in the differential input mode can achieve excellent dynamic performance far beyond its specified Nyquist frequency2.
A single clock input is used to control all internal conversion The digital output data is presented in straight binary format. An out-of-range (OTR) signal indicates an flow condition which can be used with the most significant bit to determine low or high overflow.
NOTES:
1 Excluding internal voltage reference
2 Depends on the analog input configuration
### Features and Benefits
Monolithic 12-Bit A/D Converter Product Family
Family Members are: AD9221, AD9223, and AD9220
Flexible Sampling Rates:
1.5 MSPS, 3.0 MSPS, and 10 MSPS
Low Power Dissipation:
59 mW, 100 mW, and 250 mW
Single +5 V Supply
Integral Nonlinearity Error: 0.5 LSB
Differential Nonlinearity Error: 0.3 LSB
70 dB SNR and 86 dB SFDR
Out-of-Range Indicator
28-SOIC and 28-SSOP

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