AD9237BCPZ-20 Analog Devices Inc, AD9237BCPZ-20 Datasheet

AD9237BCPZ-20

Manufacturer Part Number

AD9237BCPZ-20

Description

IC ADC 12BIT SGL 20MSPS 32LFCSP

Manufacturer

Analog Devices Inc

Datasheets

1.AD9237BCPZRL7-20.pdf (24 pages)

2.AD9237BCPZ-20.pdf (9 pages)

Specifications of AD9237BCPZ-20

Data Interface

Parallel

Number Of Bits

Sampling Rate (per Second)

20M

Number Of Converters

Power Dissipation (max)

85mW

Voltage Supply Source

Single Supply

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

32-VFQFN, CSP Exposed Pad

Resolution (bits)

12bit

Input Channel Type

Differential

Supply Voltage Range - Analogue

2.7V To 3.6V

Supply Voltage Range - Digital

2.25V To 3.6V

Supply Current

30.5mA

Sampling Rate

20MSPS

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD9237BCPZ-20

Manufacturer:

INFINEON

Quantity:

2 300

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD9237BCPZ-20

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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Preliminary Technical Data

Ultra Low Power

SNR = 66.5 dBc (to Nyquist);

SFDR = 82 dBc @ 2.4MHz Analog Input

ENOB = 10.5 bits

DNL=± 0.5 LSB

Differential Input with 500MHz Full Power Bandwidth

Flexible and Selectable Analog Input: 4Vp-p to 1Vp-p

Data Formats Supported; Offset Binary, Twos

Complement and Gray Code

Output Enable Pin

2-step power down; Full Power down and Sleep mode

APPLICATIONS

Ultrasound and Medical Imaging

Battery Powered Instruments; Hand-Held

Scopemeters; Low Cost Digital Oscilloscopes; Low

Power Digital Still Cameras and Copiers; Low power

communications

PRODUCT DESCRIPTION

The AD9237 is a monolithic, single 3V supply, 12-bit,

20/40/65MSPS Analog to Digital Converter with a high

performance sample-and-hold amplifier and voltage

reference. The AD9237 uses a multistage differential

pipelined architecture with output error correction logic to

provide 12-bit accuracy at 20/40/65MSPS data rates and

guarantee no missing codes over the full operating

temperature range.

The wide bandwidth, truly differential SHA allows for 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. With significant

power savings over previously available analog to digital

converters, the AD9237 is suitable for applications imaging

and medical ultrasound.

A single-ended clock input is used to control all internal

conversion cycles. The digital output data is presented in

straight binary, twos complement, or gray code formats. An

out-of-range (OTR) signal indicates an overflow condition,

which can be used with the most significant bit to determine

low or high overflow.

REV PrF 5/18/2005

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

No license is granted by implication or otherwise under any patent or patent rights

of Analog Devices.

FEATURES

135mW @ 40MSPS;

190mW @ 65MSPS

90mW @ 20MSPS;

SENSE

REFB

REFT

VREF

VINB

VINA

One Technology Way, P.O Box 9106, Norwood, MA 02062–9106, U.S.A.

Tel: 617/329–4700

Fax: 617–326–8703

3 V Low Power A/D Converter

Fabricated on an advanced CMOS process, the AD9237 is

available in a 32-pin chip scale package and is specified

over the industrial temperature range (-40°C to +85°C).

PRODUCT HIGHLIGHTS

AVDD

SHA

SELECT

Operating at 65MSPS, the AD9237 consumes a low

190mW and only consumes 135mW at 40 MSPS and

90mW at 20MSPS.

The AD9237 operates from a single 3V power supply,

and features a separate digital output driver supply to

accommodate 2.5V and 3.3V logic families.

The patented SHA input maintains excellent

performance for input frequencies beyond Nyquist, and

can be configured for single-ended or differential

operation.

The AD9237 is pin compatible to the AD9235, a 12-bit,

20/40/65 MSPS A/D converter. This allows a simplified

path for low power 12-bit systems.

The AD9237 is optimized for selectable and flexible

input ranges from 4Vp-p to 1Vp-p.

Output Enable pin to allow for multiplexing of the

outputs.

Two-step power down supports a standby mode in

addition to a power down mode.

The OTR output bit indicates when the signal is beyond

the selected input range.

REF

AD9237

A/D

FUNCTIONAL BLOCK DIAGRAM

AVSS

12-Bit, 20/40/65 MSPS

MDAC1

0.5 V

CLOCK

World Wide Web Site: http://www.analog.com

CORRECTION LOGIC

OUTPUT BUFFERS

PDWN

8-STAGE Pipeline

MODE2

AD9237

SELECT

MODE

DRVSS

A/D

DRVDD

OTR

D11 (MSB)

D0 (LSB)

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AD9237BCPZ-20 Summary of contents

Page 1

Preliminary Technical Data FEATURES Ultra Low Power 90mW @ 20MSPS; 135mW @ 40MSPS; 190mW @ 65MSPS SNR = 66.5 dBc (to Nyquist); SFDR = 82 dBc @ 2.4MHz Analog Input ENOB = 10.5 bits DNL=± 0.5 LSB Differential Input ...

Page 2

... Power Down Mode power is measured with a dc input, the CLK pin inactive (i.e., set to AVDD or AGND) 6. Standby Mode power is measured with a dc input, the CLK pin active. Specifications subject to change without notice. AD9237 Preliminary Technical Information – 5/18/2005 Preliminary Technical Data AD9237BCPZ-20 Test Temp Level Min Typ ...

Page 3

... Full V 2 Full IV 3.29 Full IV 3.25 Full IV 0.2 Full IV 0.05 Full IV 2.49 Full IV 2.45 Full IV 0.2 Full IV 0.05 AD9237BCPZ-20 Test Temp Level Min Typ Max Full IV 20 Full V 1 Full V 50.0 Full V 15 Full V 15 Full V 3.5 Full V 9 Full ...

Page 4

... MHz INPUT F = 10.3 MHz INPUT F = 19.6 MHz INPUT MHz INPUT MHz INPUT Specifications subject to change without notice. AD9237 Preliminary Technical Information – 5/18/2005 Preliminary Technical Data AD9237BCPZ-20 Test Temp Level Min Typ Max Full IV 66.5 25°C I 66.5 Full IV 66.5 I 66.5 25° ...

Page 5

... JA JC ORDERING GUIDE Package Description 32-Lead Frame Chip Scale Package (LFCSP) 32-Lead Frame Chip Scale Package (LFCSP) 32-Lead Frame Chip Scale Package (LFCSP) LFCSP Evaluation Board (w/ AD9237BCPZ-20) LFCSP Evaluation Board (w/ AD9237BCPZ-40) LFCSP Evaluation Board (w/ AD9237BCPZ-65) –5– AD9237 Package Option CP-32 ...

Page 6

AD9237 DEFINITIONS OF SPECIFICATIONS INTEGRAL NONLINEARITY (INL) INL refers to the deviation of each individual code from a line drawn from “negative full scale” through “positive full scale.” The point used as “negative full scale” occurs 1/2 LSB before the ...

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AD9237BCPZ-20 Analog Devices Inc, AD9237BCPZ-20 Datasheet

AD9237BCPZ-20

Specifications of AD9237BCPZ-20

Available stocks

Related parts for AD9237BCPZ-20

AD9237BCPZ-20 Summary of contents

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