AD7621

更新时间： 2024-11-04 22:38:59

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
26页	261K
描述
16-Bit, 1 LSB INL, 3 MSPS PulSAR ADC

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数据手册

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AD7621 数据手册

PRELIMINARY TECHNICAL DATA

16-Bit, 1 LSB INL, 3 MSPS PulSAR^TMADC

PreliminaryTechnicalData

AD7621

FEATURES

FUNCTIONAL BLOCK DIAGRAM

16 Bits Resolution with No Missing Codes

No Pipeline Delay ( SAR architecture )

Differential Input Range: ꢀV_REF(V_REFup to 2.5V)

Throughput:

3 MSPS (Wideband Warp and Warp Mode)

2 MSPS (Normal Mode)

REF

REFGND

TEMP REFBUFIN

DVDD DGND

AGND

AVDD

OVDD

AD7621

SERIAL

PORT

OGND

REF

SER/PAR

1.25 MSPS (Impulse Mode)

IN+

IN-

SWITCHED

CAP DAC

D[15:0]

BUSY

INL: ꢀ1 LSB Max (ꢀ0.0015% of Full-Scale)

S/(N+D): 90 dB Typ @ 100 kHz ( V_REF= 2.5V )

THD: –100 dB Typ @ 100 kHz

Parallel (16 or 8bits bus) and Serial 5V/3.3V/2.5V Interface

SPI/QSPI/MICROWIRE/DSP Compatible

On-board Low Drift Reference with Buffer and Temperature

sensor

PARALLEL

INTERFACE

PDREF

CLOCK

PDBUF

CONTROL LOGIC AND

CALIBRATION CIRCUITRY

OB/2C

BYTESWAP

RESET

Single 2.5 V Supply Operation

WARP IMPULSE

CNVST

Power Dissipation: 100 mW Typ @ 3 MSPS

Power-Down Mode

Package: 48-Lead Quad Flat Pack (LQFP)

48-Lead Frame Chip Scale Package (LFCSP)

Speed Upgrade of the AD7677

PulSAR Selection

500 - 570

Type / kSPS 100 - 250

800 - 1000 >1000

Pseudo

AD7651

AD7650/52 AD7653

APPLICATIONS

Differential AD7660/61 AD7664/66 AD7667

Medical Instruments

High Speed Data Acquisition

Communications

Instrumentation

Spectrum Analysis

ATE

True Bipolar

AD7663

AD7675

AD7665

AD7676

AD7671

True

Differential

AD7677 AD7621

18 Bit

AD7678

AD7679

AD7654

AD7674

AD7655

Multichannel

Simultaneous

PRODUCT HIGHLIGHTS

GENERAL DESCRIPTION

1. High resolution and Fast Throughput

The AD7621 is a 3 MSPS, charge redistribution,

16-bit SAR ADC ( no latency ).

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

SAR, fully differential analog-to-digital converter that

operates from a single 2.5 V power supply. The part

contains a high-speed 16-bit sampling ADC, an internal

conversion clock, an internal reference buffer, error

correction circuits, and both serial and parallel system

interface ports.

2. Excellent accuracy

The AD7621 has a maximum integral nonlinearity of 1

LSB with no missing 16-bit code.

3. Single-Supply Operation

It features a very high sampling rate mode (Wideband

Warp) for undersampling applications and, for asyn-

chronous conversion rate applications, a fast mode

(Normal) and, for low power applications, a reduced

power mode (Impulse) where the power is scaled with

the throughput.

The AD7621 operates from a single 2.5 V supply and

typically dissipates only 100 mW. In impulse mode,

its power dissipation decreases with the throughput and

it features a power-down mode.

5. Serial or Parallel Interface

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

interface arrangement compatible with either 2.5V,

3.3V or 5 V logic.

It is available in a 48-lead LQFP or a 48-lead LFCSP

with operation specified from –40°C to +85°C.

REV. Pr D

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

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与AD7621相关器件

型号	品牌	获取价格	描述	数据表
AD7621_17	ADI	获取价格	16-Bit, 2 LSB INL, 3 MSPS PulSAR ADC
AD7621ACP	ADI	获取价格	16-Bit, 1 LSB INL, 3 MSPS PulSAR ADC
AD7621ACP	ROCHESTER	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, MO-220-VKKD-2, LF
AD7621ACPRL	ADI	获取价格	16-Bit, 1 LSB INL, 3 MSPS PulSAR ADC
AD7621ACPZ	ADI	获取价格	16-Bit, 2 LSB INL, 3 MSPS PulSAR ADC
AD7621ACPZ1	ADI	获取价格	16-Bit, 2 LSB INL, 3 MSPS PulSARÂ® ADC
AD7621ACPZRL	ADI	获取价格	16-Bit, 2 LSB INL, 3 MSPS PulSAR ADC
AD7621ACPZRL1	ADI	获取价格	16-Bit, 2 LSB INL, 3 MSPS PulSARÂ® ADC
AD7621AST	ADI	获取价格	16-Bit, 1 LSB INL, 3 MSPS PulSAR ADC
AD7621AST	ROCHESTER	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, MO-026-BBC, LQFP

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