AD7674AST

更新时间： 2024-11-29 12:35:39

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	983K
描述
18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC

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AD7674AST 数据手册

18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC

AD7674

FEATURES

FUNCTIONAL BLOCK DIAGRAM

PDBUF

REF

REFGND

DVDD DGND

18-bit resolution with no missing codes

No pipeline delay (SAR architecture)

Differential input range: ±±_REF(±_REFup to 5 ±)

AGND

AVDD

OVDD

OGND

AD7674

SERIAL

PORT

REFBUFIN

Throughput:

800 kSPS (Warp mode)

666 kSPS (Normal mode)

570 kSPS (Impulse mode)

IN+

IN–

SWITCHED

CAP DAC

D[17:0]

BUSY

INL: ±2.5 LSB max (±9.5 ppm of full scale)

Dynamic range : 103 dB typ (±_REF= 5 ±)

S/(N+D): 100 dB typ @ 2 kHz (±_REF= 5 ±)

Parallel (18-,16-, or 8-bit bus) and serial 5 ±/3 ± interface

SPI®/QSPI™/MICROWIRE™/DSP compatible

On-board reference buffer

PARALLEL

INTERFACE

CLOCK

CONTROL LOGIC AND

CALIBRATION CIRCUITRY

MODE0

MODE1

RESET

CNVST

IMPULSE

WARP

03083–0–001

Single 5 ± supply operation

Power dissipation:

98 mW typ @ 800 kSPS

Figure 1. Functional Block Diagram

78 mW typ@ 500 kSPS (Impulse mode)

160 μW @ 1 kSPS (Impulse mode)

48-lead LQFP or 48-lead LFCSP package

Pin-to-pin compatible upgrade of AD7676/AD7678/AD7679

Table 1. PulSAR^TMSelection

800–

1000

Type/kSPS

100–250

500–570

Pseudo-

AD7651

AD7650/AD7652 AD7653

APPLICATIONS

Differential

AD7660/AD7661 AD7664/AD7666 AD7667

True Bipolar

AD7663

AD7675

AD7665

AD7676

AD7671

AD7677

CT scanners

True

Differential

High dynamic data acquisition

Geophone and hydrophone sensors

Σ-Δ replacement (low power, multichannel)

Instrumentation

18-Bit

AD7678

AD7679

AD7674

Multichannel/

Simultaneous

AD7654

AD7655

Spectrum analysis

Medical instruments

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7674 is an 18-bit, 800 kSPS, charge redistribution SAR,

fully differential analog-to-digital converter that operates on a

single 5 V power supply. The part contains a high speed 18-bit

sampling ADC, an internal conversion clock, an internal

reference buffer, error correction circuits, and both serial and

parallel system interface ports.

1. High Resolution, Fast Throughput.

The AD7674 is an 800 kSPS, charge redistribution, 18-bit

SAR ADC (no latency).

2. Excellent Accuracy.

The AD7674 has a maximum integral nonlinearity of

2.5 LSB with no missing 18-bit codes.

The part is available in 48-lead LQFP or 48-lead LFCSP

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

3. Serial or Parallel Interface.

Versatile parallel (18-, 16- or 8-bit bus) or 3-wire serial

interface arrangement compatible with both 3 V and

5 V logic.

Rev. A

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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AD7674AST 替代型号

型号	品牌	替代类型	描述	数据表
AD7674ASTZ	ADI	完全替代	18-Bit, 2.5 LSB INL, 800 kSPS, SAR ADC
AD7678ASTZ	ADI	完全替代	18-Bit,100 kSPS PulSAR® A/D Converter
AD7679ASTZ	ADI	完全替代	18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC

与AD7674AST相关器件

型号	品牌	获取价格	描述	数据表
AD7674ASTRL	ADI	获取价格	IC 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48, LQFP-48, Anal
AD7674ASTZ	ADI	获取价格	18-Bit, 2.5 LSB INL, 800 kSPS, SAR ADC
AD7674ASTZ1	ADI	获取价格	18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC
AD7674ASTZL	ADI	获取价格	18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC
AD7674ASTZRL	ADI	获取价格	18-Bit, 2.5 LSB INL, 800 kSPS, SAR ADC
AD7675	ADI	获取价格	16-Bit, 100 kSPS, Differential ADC
AD7675ACP	ADI	获取价格	IC 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-2
AD7675ACPRL	ADI	获取价格	IC 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-2
AD7675ACPZ	ADI	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-220V
AD7675ACPZRL	ADI	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, MO-220V

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