AD7266BCPZ

更新时间： 2024-11-29 12:33:51

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器
页数	文件大小	规格书
28页	644K
描述
Differential/Single-Ended Input, Dual

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AD7266BCPZ 数据手册

Differential/Single-Ended Input, Dual

2 MSPS, 12-Bit, 3-Channel SAR ADC

AD7266

FUNCTIONAL BLOCK DIAGRAM

FEATURES

REF SELECT

CAP

Dual 12-bit, 3-channel ADC

Throughput rate: 2 MSPS

BUF

T/H

REF

Specified for V_DDof 2.7 V to 5.25 V

Power consumption

AD7266

9 mW at 1.5 MSPS with 3 V supplies

27 mW at 2 MSPS with 5 V supplies

Pin-configurable analog inputs

12-channel single-ended inputs

6-channel fully differential inputs

6-channel pseudo differential inputs

70 dB SNR at 50 kHz input frequency

Accurate on-chip reference: 2.5 V

0.2ꢀ maximum @ 25°C, 20 ppm/°C maximum

Dual conversion with read 437.5 ns, 32 MHz SCLK

High speed serial interface

SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible

−40°C to +125°C operation

Shutdown mode: 1 μA maximum

32-lead LFCSP and 32-lead TQFP

1 MSPS version, AD7265

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

OUTPUT

DRIVERS

MUX

OUT

SCLK

RANGE

SGL/DIFF

CONTROL

LOGIC

DRIVE

MUX

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

OUTPUT

DRIVERS

T/H

OUT

BUF

AGND AGND AGND

DGND

CAP

GENERAL DESCRIPTION

Figure 1.

The AD7266¹is a dual, 12-bit, high speed, low power, successive

approximation ADC that operates from a single 2.7 V to 5.25 V

power supply and features throughput rates up to 2 MSPS. The

device contains two ADCs, each preceded by a 3-channel

multiplexer, and a low noise, wide bandwidth track-and-hold

amplifier that can handle input frequencies in excess of 30 MHz.

The AD7266 is available in a 32-lead LFCSP and a

32-lead TQFP.

PRODUCT HIGHLIGHTS

1. Two Complete ADC Functions Allow Simultaneous

Sampling and Conversion of Two Channels.

The conversion process and data acquisition use standard

control inputs allowing easy interfacing to microprocessors or

DSPs. The input signal is sampled on the falling edge of

conversion is also initiated at this point. The conversion time is

determined by the SCLK frequency. There are no pipelined

delays associated with the part.

Each ADC has three fully/pseudo differential pairs, or six

single-ended channels, as programmed. The conversion

result of both channels is simultaneously available on

separate data lines, or in succession on one data line if only

one serial port is available.

;

2. High Throughput with Low Power Consumption.

The AD7266 offers a 1.5 MSPS throughput rate with 11.4 mW

maximum power dissipation when operating at 3 V.

3. The AD7266 offers both a standard 0 V to V_REFinput range

and a 2 × V_REFinput range.

The AD7266 uses advanced design techniques to achieve very

low power dissipation at high throughput rates. With 5 V

supplies and a 2 MSPS throughput rate, the part consumes

6.2 mA maximum. The part also offers flexible power/

throughput rate management when operating in normal mode

as the quiescent current consumption is so low.

4. No Pipeline Delay.

The part features two standard successive approximation

ADCs with accurate control of the sampling instant via a

The analog input range for the part can be selected to be a 0 V

to V_REF(or 2 × V_REF) range, with either straight binary or twos

complement output coding. The AD7266 has an on-chip 2.5 V

reference that can be overdriven when an external reference is

input and once off conversion control.

¹Protected by U.S. Patent No. 6,681,332

preferred. This external reference range is 100 mV to V_DD

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 registeredtrademarks arethe 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

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AD7266BCPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7266BCPZ-REEL7	ADI	完全替代	Differential/Single-Ended Input, Dual
AD7266BCPZ-REEL	ADI	完全替代	Differential/Single-Ended Input, Dual
AD7266BCP	ADI	完全替代	Differential Input, Dual 2 MSPS, 12-Bit, 3-Channel SAR ADC

与AD7266BCPZ相关器件

型号	品牌	获取价格	描述	数据表
AD7266BCPZ-REEL	ADI	获取价格	Differential/Single-Ended Input, Dual
AD7266BCPZ-REEL7	ADI	获取价格	Differential/Single-Ended Input, Dual
AD7266BSU	ADI	获取价格	Differential Input, Dual 2 MSPS, 12-Bit, 3-Channel SAR ADC
AD7266BSUZ	ADI	获取价格	Differential/Single-Ended Input, Dual 2 MSPS, 12-Bit, 3-Channel SAR ADC
AD7266BSUZ-REEL	ADI	获取价格	Differential/Single-Ended Input, Dual
AD7266BSUZ-REEL7	ADI	获取价格	Differential/Single-Ended Input, Dual
AD7273	ADI	获取价格	3MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7273_15	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD72731	ADI	获取价格	3 MSPS,10-/12-Bit ADCs in 8-Lead TSOT
AD7273BRM	ADI	获取价格	3MSPS,10-/12-Bit ADCs in 8-Lead TSOT

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