Datasheet > AD7621ASTZRL1

AD7621ASTZRL1

更新时间： 2024-11-23 12:41:35

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	619K
描述
16-Bit, 2 LSB INL, 3 MSPS PulSARÂ® ADC

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AD7621ASTZRL1 数据手册

16-Bit, 2 LSB INL, 3 MSPS PulSAR^®ADC

AD7621

FEATURES

Throughput

FUNCTIONAL BLOCK DIAGRAM

TEMP REFBUFIN REF REFGND

DVDD DGND

3 MSPS (wideband warp and warp mode)

2 MSPS (normal mode)

1.25 MSPS (impulse mode)

AGND

AVDD

OVDD

OGND

AD7621

REF

REF AMP

SERIAL

PORT

2.048 V internal reference

IN+

IN–

SWITCHED

CAP DAC

Differential input range: V_REF(V_REFup to 2.5 V)

INL: 2 LSB maximum, 1 LSB typical

16-bit resolution with no missing codes

SINAD: 89 dB typical @ 100 kHz

THD: −101 dB typical @ 100 kHz

No pipeline delay (SAR architecture)

Parallel (16- or 8-bit bus) and serial 5 V/3.3 V/2.5 V interface

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

2.5 V single-supply operation

D[15:0]

SER/PAR

BUSY

PARALLEL

INTERFACE

PDREF

PDBUF

CLOCK

CONTROL LOGIC AND

CALIBRATION CIRCUITRY

OB/2C

BYTESWAP

RESET

WARP

IMPULSE CNVST

Figure 1.

Power dissipation: 65 mW typical @ 3 MSPS

48-lead LQFP and 48-lead LFCSP_VQ packages

Speed upgrade of the AD7677

Table 1. PulSAR Selection

800 to

100 to 250 500 to 570 1000

AD7651 AD7650/52 AD7653

AD7660/61 AD7664/66 AD7667

Type/kSPS

>1000

Pseudo

Differential

APPLICATIONS

Medical instruments

High speed data acquisition

Digital signal processing

Communications

Instrumentation

True Bipolar

True

Differential

18-Bit

Multichannel/

Simultaneous

AD7663

AD7665

AD7671

AD7675

AD7678

AD7676

AD7679

AD7677 AD7621

AD7674 AD7641

Spectrum analysis

ATE

AD7654

AD7655

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

1. Fast Throughput.

The AD7621 is a 16-bit, 3 MSPS, charge redistribution SAR,

fully differential analog-to-digital converter (ADC) that

operates from a single 2.5 V power supply. It contains a high

speed 16-bit sampling ADC, an internal conversion clock, an

internal reference (and buffer), error correction circuits, and

both serial and parallel system interface ports. It features two

very high sampling rate modes (wideband warp and warp), a

fast mode (normal) for asynchronous rate applications, and a

reduced power mode (impulse) for low power applications

where the power is scaled with the throughput. Operation is

specified from −40°C to +85°C.

The AD7621 is a 3 MSPS, charge redistribution,

16-bit SAR ADC.

2. Superior Linearity.

The AD7621 has no missing 16-bit code.

3. Internal Reference.

The AD7621 has a 2.048 V internal reference with a

typical drift of 7 ppm/°C.

4. Single-Supply Operation.

The AD7621 operates from a 2.5 V single supply and

typically dissipates 65 mW. In impulse mode, its power

dissipation decreases with the throughput.

5. Serial or Parallel Interface.

Versatile parallel (16- or 8-bit bus) or 2-wire serial interface

arrangement compatible with 2.5 V, 3.3 V, or 5 V logic.

Rev. 0

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

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...32

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与AD7621ASTZRL1相关器件

型号	品牌	获取价格	描述	数据表
AD7622	ADI	获取价格	16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC
AD7622BCPZ	ADI	获取价格	1.5 LSB INL, 2 MSPS PulSAR ADC
AD7622BCPZRL	ADI	获取价格	16-Bit, 1.5 LSB INL, 2 MSPS PulSAR® ADC
AD7622BSTZ	ADI	获取价格	16-Bit, 1.5 LSB INL, 2 MSPS PulSAR ADC
AD7622BSTZRL	ADI	获取价格	1.5 LSB INL, 2 MSPS PulSAR ADC
AD7623	ADI	获取价格	16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC
AD7623ACP	ADI	获取价格	IC 1-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-220-VKK
AD7623ACPRL	ADI	获取价格	16-Bit, 1.33 MSPS PulSAR ADC
AD7623ACPZ	ADI	获取价格	16-Bit, 1.33 MSPS PulSAR® A/D Converter
AD7623ACPZ	ROCHESTER	获取价格	1-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-220-VKKD-2

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