Datasheet > AD9235BCPZ-40

AD9235BCPZ-40

更新时间： 2024-10-28 12:34:19

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
40页	838K
描述
12-Bit, 20/40/65 MSPS 3 V A/D Converter

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AD9235BCPZ-40 数据手册

12-Bit, 20/40/65 MSPS

3 V A/D Converter

AD9235

Data Sheet

FEATURES

FUNCTIONAL BLOCK DIAGRAM

AVDD

DRVDD

Single 3 V supply operation (2.7 V to 3.6 V)

SNR = 70 dBc to Nyquist at 65 MSPS

SFDR = 85 dBc to Nyquist at 65 MSPS

Low power: 300 mW at 65 MSPS

Differential input with 500 MHz bandwidth

On-chip reference and SHA

VIN+

VIN–

8-STAGE

1 1/2-BIT

PIPELINE

SHA

A/D

MDAC1

REFT

REFB

A/D

DNL = 0.4 LSB

CORRECTION LOGIC

Flexible analog input: 1 V p-p to 2 V p-p range

Offset binary or twos complement data format

Clock duty cycle stabilizer

OUTPUT BUFFERS

OTR

D11

AD9235

VREF

CLOCK

DUTY CYCLE

STABILIZER

APPLICATIONS

Ultrasound equipment

IF sampling in communications receivers

IS-95, CDMA-One, IMT-2000

Battery-powered instruments

Hand-held scopemeters

MODE

SELECT

SENSE

REF

SELECT

0.5V

AGND

CLK

PDWN

MODE

DGND

Figure 1.

Low cost digital oscilloscopes

GENERAL DESCRIPTION

can be used with the most significant bit to determine low or

high overflow.

The AD9235 is a family of monolithic, single 3 V supply, 12-bit,

20/40/65 MSPS analog-to-digital converters (ADCs). This

family features a high performance sample-and-hold amplifier

(SHA) and voltage reference. The AD9235 uses a multistage

differential pipelined architecture with output error correction

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

and guarantee no missing codes over the full operating

temperature range.

Fabricated on an advanced CMOS process, the AD9235 is avail-

able in a 28-lead TSSOP and a 32-lead LFCSP and is specified

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

PRODUCT HIGHLIGHTS

1. The AD9235 operates from a single 3 V power supply and

features a separate digital output driver supply to accommo-

date 2.5 V and 3.3 V logic families.

2. Operating at 65 MSPS, the AD9235 consumes a low 300 m W.

3. The patented SHA input maintains excellent performance for

input frequencies up to 100 MHz and can be configured for

single-ended or differential operation.

4. The AD9235 pinout is similar to the AD9214-65, a 10-bit,

65 MSPS ADC. This allows a simplified upgrade path from

10 bits to 12 bits for 65 MSPS systems.

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 AD9235 is suitable for applications in communica-

tions, imaging, and medical ultrasound.

5. The clock DCS maintains overall ADC performance over a

wide range of clock pulse widths.

6. The OTR output bit indicates when the signal is beyond the

selected input range.

A single-ended clock input is used to control 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 straight binary or twos complement formats. An

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

Rev. D

Information furnishedby Analog Devices is believedto be accurate andreliable. However, nore-

sponsibility is assumed by Analog Devices for its use, nor for anyinfringements of patentsor other

rightsofthird partiesthat may result from its use. Specifications subject to change without notice. No

license isgrantedbyimplication or otherwise under anypatent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...40

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AD9235BCPZ-40 替代型号

型号	品牌	替代类型	描述	数据表
AD9235BCPZRL7-40	ADI	完全替代	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BCP-40	ADI	完全替代	12-Bit, 20/40/65 MSPS 3 V A/D Converter
LTC2229IUH#PBF	Linear	功能相似	LTC2229 - 12-Bit, 80Msps Low Power 3V ADC; Package: QFN; Pins: 32; Temperature Range: -40&

与AD9235BCPZ-40相关器件

型号	品牌	获取价格	描述	数据表
AD9235BCPZ-65	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BCPZRL7-20	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BCPZRL7-40	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BCPZRL7-65	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BRU-20	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BRU-40	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BRU-65	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BRURL7-20	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BRURL7-40	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter
AD9235BRURL7-65	ADI	获取价格	12-Bit, 20/40/65 MSPS 3 V A/D Converter

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