AD9254 - ADI

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

Part No

AD9254
Manufacturer

ADI
ChipWorker Part#

CW622300244
Description

14Bit, 150MSPS, 1.8V Analog-to-Digital Converter
Documentation

Datasheet

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AD9254 Specifications

Attribute	Attribute Value

Part Number	AD9254
Manufacturer	ADI
ChipWorker Part#	CW622300244
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The AD9254 is a monolithic, single 1.8 V supply, 14-bit, 150 MSPS analog-to-digital converter (ADC), featuring a high performance sample-and-hold amplifier (SHA) and on-chip voltage reference. The product uses a multistage differential pipeline architecture with output error correction logic to provide 14-bit accuracy at 150 MSPS data rates and guarantees no missing codes over the full operating temperature range.
The wide bandwidth, truly differential SHA allows a variety of user-selectable input ranges and offsets, including single-ended applications. It is suitable for multiplexed systems that switch full-scale voltage levels in successive channels and for sampling single-channel inputs at frequencies well beyond the Nyquist rate. Combined with power and cost savings over previously available ADCs, the AD9254 is suitable for applications in communications, imaging, and medical ultrasound.
A differential clock input controls all internal conversion cycles. A duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance.
The digital output data is presented in offset binary, Gray code, or twos complement formats. A data output clock (DCO) is provided to ensure proper latch timing with receiving logic.
The AD9254 is available in a 48-lead LFCSP_VQ and is specified over the industrial temperature range (−40°C to +85°C).
**Product Highlights**
1. The AD9254 operates from a single 1.8 V power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families.
2. The patented SHA input maintains excellent performance for input frequencies up to 225 MHz.
3. The clock DCS maintains overall ADC performance over a wide range of clock pulse widths.
4. A standard serial port interface supports various product features and functions, such as data formatting (offset binary, twos complement, or Gray coding), enabling the clock DCS, power-down, and voltage reference mode.
5. The AD9254 is pin-compatible with the AD9233, allowing a simple migration from 12 bits to 14 bits.
**Applications**
Ultrasound equipment
IF sampling in communications receivers
CDMA2000, WCDMA, TD-SCDMA, and WiMax
Battery-powered instruments
Hand-held scopemeters
Low cost digital oscilloscopes
Macro, micro, and pico cell infrastructure
### Features and Benefits
1.8 V analog supply operation
1.8 V to 3.3 V output supply
SNR = 71.8 dBc (72.8 dBFS) to 70 MHz input
SFDR = 84 dBc to 70 MHz input
Low power: 430 mW @ 150 MSPS
Differential input with 650 MHz bandwidth
On-chip voltage reference and sample-and-hold amplifier
DNL = ±0.4 LSB
Flexible analog input: 1 V p-p to 2 V p-p range
Offset binary, Gray code, or twos complement data format
Clock duty cycle stabilizer
Data output clock

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