Datasheet > 转换器 > 模数转换器> AD7440BRT-REEL7

AD7440BRT-REEL7

更新时间： 2024-11-20 08:16:59

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器光电二极管
页数	文件大小	规格书
28页	770K
描述
Differential Input, 1 MSPS 10-Bit and 12-Bit ADCs in an 8-Lead SOT-23

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AD7440BRT-REEL7 数据手册

Differential Input, 1 MSPS

10-Bit and 12-Bit ADCs in an 8-Lead SOT-23

AD7440/AD7450A

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Fast throughput rate: 1 MSPS

Specified for V_DDof 3 V and 5 V

Low power at max throughput rate:

4 mW max at 1 MSPS with 3 V supplies

9.25 mW max at 1 MSPS with 5 V supplies

Fully differential analog input

Wide input bandwidth:

IN+

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

T/H

IN–

REF

70 dB SINAD at 100 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

SCLK

SDATA

High speed serial interface:

AD7440/AD7450A

CONTROL LOGIC

SPI®/QSPI™/MICROWIRE™/DSP compatible

Power-down mode: 1 µA max

8-lead SOT-23 and MSOP packages

GND

APPLICATIONS

Figure 1.

Transducer interface

Battery-powered systems

Data acquisition systems

Portable instrumentation

Motor control

on the falling edge of ; the conversion is also initiated at this

point. The SAR architecture of these parts ensures that there are

no pipeline delays. The AD7440 and the AD7450A use ad-

vanced design techniques to achieve very low power dissipation

at high throughput rates.

PRODUCT HIGHLIGHTS

GENERAL DESCRIPTION

The AD7440/AD7450A¹are 10-bit and 12-bit high speed, low

power, successive approximation (SAR) analog-to-digital

converters with a fully differential analog input. These parts

operate from a single 3 V or 5 V power supply and use advanced

design techniques to achieve very low power dissipation at

throughput rates up to 1 MSPS. The SAR architecture of these

parts ensures that there are no pipeline delays.

1. Operation with either 3 V or 5 V power supplies.

2. High throughput with low power consumption.

With a 3 V supply, the AD7440/AD7450A offer 4 mW

max power consumption for 1 MSPS throughput.

3. Fully differential analog input.

4. Flexible power/serial clock speed management.

The conversion rate is determined by the serial clock,

allowing the power to be reduced as the conversion time

is reduced through the serial clock speed increase. These

parts also feature a shutdown mode to maximize power

efficiency at lower throughput rates.

The parts contain a low noise, wide bandwidth, differential

track-and-hold amplifier (T/H) that can handle input

frequencies up to 3.5 MHz. The reference voltage is applied

externally to the V_REFpin and can be varied from 100 mV to

3.5 V depending on the power supply and what suits the

application. The value of the reference voltage determines the

common-mode voltage range of the part. With this truly

differential input structure and variable reference input, the user

can select a variety of input ranges and bias points.

5. Variable voltage reference input.

6. No pipeline delay.

7. Accurate control of the sampling instant via a

once-off conversion control.

input and

8. ENOB > eight bits typically with 100 mV reference.

The conversion process and data acquisition are controlled

using

and the serial clock, allowing the device to interface

with microprocessors or DSPs. The input signals are sampled

¹Protected by U.S. Patent Number 6,681,332.

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

Fax: 781.326.8703

www.analog.com

12 3 4 5 6 7...28

中文翻译

下载PDF

与AD7440BRT-REEL7相关器件

型号	品牌	获取价格	描述	数据表
AD7440BRTZ-R2	ROCHESTER	获取价格	1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, LEAD FREE, MO-178BA, SOT-2
AD7440BRTZ-R22	ADI	获取价格	Differential Input, 1 MSPS ADCs in an 8-Lead SOT-23
AD7440BRTZ-REEL7	ROCHESTER	获取价格	1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, LEAD FREE, MO-178BA, SOT-2
AD7440BRTZ-REEL72	ADI	获取价格	Differential Input, 1 MSPS ADCs in an 8-Lead SOT-23
AD7441	ADI	获取价格	Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23
AD7441_10	ADI	获取价格	Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23
AD74412R	ADI	获取价格	四通道、软件可配置输入/输出
AD74413R	ADI	获取价格	软件可配置的四通道输入/输出
AD7441BRM	ADI	获取价格	Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23
AD7441BRM-REEL7	ROCHESTER	获取价格	1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-187AA, MSOP-8

与AD7440BRT-REEL7相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

25
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

17
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

49
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

46

产品中心

服务支持

精选活动

关于我们

帮助中心

AD7440BRT-REEL7

AD7440BRT-REEL7 数据手册

与AD7440BRT-REEL7相关器件

与AD7440BRT-REEL7相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AD7440BRT-REEL7

AD7440BRT-REEL7 数据手册

与AD7440BRT-REEL7相关器件

与AD7440BRT-REEL7相关文章

您还可以找

您在本页遇到什么问题？