AD9248BCPZRL-65

更新时间： 2024-10-29 12:31:39

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
48页	1270K
描述
14-Bit, 20 MSPS/40 MSPS/65 MSPS Dual A/D Converter

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替代型号

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AD9248BCPZRL-65 数据手册

14-Bit, 20 MSPS/40 MSPS/65 MSPS

Dual A/D Converter

AD9248

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Integrated dual 14-bit ADC

AVDD

AGND

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

SNR = 71.6 dB (to Nyquist, AD9248-65)

SFDR = 80.5 dBc (to Nyquist, AD9248-65)

Low power: 300 mW/channel at 65 MSPS

Differential input with 500 MHz, 3 dB bandwidth

Exceptional crosstalk immunity > 85 dB

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

Offset binary or twos complement data format

Clock duty cycle stabilizer

OTR_A

VIN+_A

VIN–_A

D13_A TO D0_A

OEB_A

SHA

ADC

OUTPUT

MUX/

BUFFERS

REFT_A

REFB_A

VREF

MUX_SELECT

CLK_A

CLOCK

DUTY CYCLE

STABILIZER

CLK_B

DCS

SENSE

AGND

SHARED_REF

PWDN_A

PWDN_B

DFS

0.5V

MODE

CONTROL

Output datamux option

REFT_B

REFB_B

VIN+_B

VIN–_B

APPLICATIONS

Ultrasound equipment

Direct conversion or IF sampling receivers

WB-CDMA, CDMA2000, WiMAX

Battery-powered instruments

Hand-held scopemeters

OTR_B

OUTPUT

MUX/

BUFFERS

SHA

ADC

D13_B TO D0_B

OEB_B

AD9248

DRVDD

DRGND

Figure 1.

Low cost digital oscilloscopes

Fabricated on an advanced CMOS process, the AD9248 is

available in a Pb-free, space saving, 64-lead LQFP or LFCSP and

is specified over the industrial temperature range (−40°C to

+85°C).

GENERAL DESCRIPTION

The AD9248 is a dual, 3 V, 14-bit, 20 MSPS/40 MSPS/65 MSPS

analog-to-digital converter (ADC). It features dual high

performance sample-and hold amplifiers (SHAs) and an

integrated voltage reference. The AD9248 uses a multistage

differential pipelined architecture with output error correction

logic to provide 14-bit accuracy and to guarantee no missing

codes over the full operating temperature range at up to

65 MSPS data rates. The wide bandwidth, differential SHA

allows for a variety of user-selectable input ranges and offsets,

including single-ended applications. It is suitable for various

applications, including multiplexed systems that switch full-

scale voltage levels in successive channels and for sampling

inputs at frequencies well beyond the Nyquist rate.

PRODUCT HIGHLIGHTS

1. Pin-compatible with the AD9238, 12-bit 20 MSPS/

40 MSPS/65 MSPS ADC.

2. Speed grade options of 20 MSPS, 40 MSPS, and 65 MSPS

allow flexibility between power, cost, and performance to suit

an application.

3. Low power consumption: AD9248-65: 65 MSPS = 600 mW,

AD9248-40: 40 MSPS = 330 mW, and AD9248-20: 20 MSPS =

180 mW.

4. Typical channel isolation of 85 dB @ f_IN= 10 MHz.

Dual single-ended clock inputs are used to control all internal

conversion cycles. A duty cycle stabilizer is available and can

compensate for wide variations in the clock duty cycle, allowing

the converter to maintain excellent performance. The digital

output data is presented in either straight binary or twos

complement format. Out-of-range signals indicate an overflow

condition, which can be used with the most significant bit to

determine low or high overflow.

5. The clock duty cycle stabilizer (AD9248-20/AD9248-40/

AD9248-65) maintains performance over a wide range of

clock duty cycles.

6. Multiplexed data output option enables single-port operation

from either Data Port A or Data Port B.

Rev. B

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.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks 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

www.analog.com

12 3 4 5 6 7...48

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AD9248BCPZRL-65 替代型号

型号	品牌	替代类型	描述	数据表
AD9248BCPZRL-20	ADI	完全替代	14-Bit, 20 MSPS/40 MSPS/65 MSPS Dual A/D Converter
AD9248BCPZ-40	ADI	类似代替	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BCPZ-20	ADI	类似代替	14-Bit, 20/40/65 MSPS Dual A/ D Converter

与AD9248BCPZRL-65相关器件

型号	品牌	获取价格	描述	数据表
AD9248BCPZRL7-20	ADI	获取价格	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BCPZRL7-40	ADI	获取价格	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BCPZRL7-65	ADI	获取价格	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BST-20	ADI	获取价格	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BST-40	ADI	获取价格	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BST-65	ADI	获取价格	14-Bit, 20/40/65 MSPS Dual A/ D Converter
AD9248BST-65EB	ADI	获取价格	High Speed ADC USB FIFO Evaluation Kit
AD9248BST-65EBZ	ADI	获取价格	14-Bit, 20 MSPS/40 MSPS/65 MSPS Dual A/D Converter
AD9248BSTZ-20	ADI	获取价格	14-Bit, 20 MSPS/40 MSPS/65 MSPS Dual A/D Converter
AD9248BSTZ-40	ADI	获取价格	14-Bit, 20 MSPS/40 MSPS/65 MSPS Dual A/D Converter

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