AD7490

更新时间： 2024-11-30 23:16:19

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	904K
描述
16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP

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

AD7490 数据手册

16-Channel, 1 MSPS, 12-Bit ADC

with Sequencer in 28-Lead TSSOP

AD7490

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Fast Throughput Rate: 1 MSPS

Specified for V_DDof 2.7 V to 5.25 V

Low Power at Max Throughput Rates:

5.4 mW Max at 870 kSPS with 3 V Supplies

12.5 mW Max at 1 MSPS with 5 V Supplies

16 (Single-Ended) Inputs with Sequencer

Wide Input Bandwidth:

69.5 dB SNR at 50 kHz Input Frequency

Flexible Power/Serial Clock Speed Management

No Pipeline Delays

High Speed Serial Interface SPI™/QSPI™/

MICROWIRE™/DSP Compatible

Full Shutdown Mode: 0.5 ꢀA Max

28-Lead TSSOP and 32-Lead LFCSP Packages

REF

T/H

•

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

I/P

MUX

SCLK

DOUT

DIN

CONTROL LOGIC

SEQUENCER

GENERAL DESCRIPTION

The AD7490 is a 12-bit high speed, low power, 16-channel,

successive-approximation ADC. The part operates from a single

2.7 V to 5.25 V power supply and features throughput rates up

to 1 MSPS. The part contains a low noise, wide bandwidth

track-and-hold amplifier that can handle input frequencies in

excess of 1 MHz.

AD7490

DRIVE

GND

The conversion process and data acquisition are controlled

using CS and the serial clock signal, allowing the device to

easily interface with microprocessors or DSPs. The input signal

is sampled on the falling edge of CS and conversion is also

initiated at this point. There are no pipeline delays associated

with the part.

PRODUCT HIGHLIGHTS

1. High Throughput with Low Power Consumption

The AD7490 offers up to 1 MSPS throughput rates. At

maximum throughput with 3 V supplies, the AD7490

dissipates just 5.4 mW of power.

The AD7490 uses advanced design techniques to achieve very

low power dissipation at high throughput rates. For maximum

throughput rates, the AD7490 consumes just 1.8 mA with 3 V

supplies, and 2.5 mA with 5 V supplies.

2. Sixteen Single-Ended Inputs with Channel Sequencer

A Sequence of channels can be selected, through which the

AD7490 will cycle and convert.

3. Single-Supply Operation with V_DRIVEFunction

By setting the relevant bits in the Control Register, the analog

input range for the part can be selected to be a 0 to REF_INinput or

a 0 to 2 ꢀ REF_INwith either straight binary or twos complement

output coding. The AD7490 features 16 single-ended analog

inputs with a channel sequencer to allow a preprogrammed

selection of channels to be converted sequentially.

The AD7490 operates from a single 2.7 V to 5.25 V supply.

The V_DRIVEfunction allows the serial interface to connect

directly to either 3 V or 5 V processor systems independent

of V_DD

4. Flexible Power/Serial Clock Speed Management

The conversion rate is determined by the serial clock, allowing

the conversion time to be reduced through the serial clock

speed increase. The part also features various shutdown

modes to maximize power efficiency at lower throughput

rates. Power consumption is 0.5 µA max when in full shutdown.

The conversion time is determined by the SCLK frequency as

this is also used as the master clock to control the conversion.

The AD7490 is available in a 28-lead thin shrink small outline

(TSSOP) package, and a 32-lead chip scale package.

5. No Pipeline Delay

The part features a standard successive-approximation ADC

with accurate control of the sampling instant via a CS input

and once off conversion control.

SPI and QSPI are trademarks of Motorola Inc.

MICROWIRE is a trademark of National Semiconductor Corporation

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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

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

12 3 4 5 6 7...24

中文翻译

下载PDF

与AD7490相关器件

型号	品牌	获取价格	描述	数据表
AD7490_12	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BCP	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BCP-REEL	ADI	获取价格	IC 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, QCC32, MO-220-VHHD-2, LFCSP-3
AD7490BCPZ	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BCPZ-REEL7	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BRU	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BRU-EP-RL7	ADI	获取价格	IC 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO28, PLASTIC, MO-153AE, TS
AD7490BRU-REEL	ADI	获取价格	IC 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO28, MO-153AE, TSSOP-28, A
AD7490BRU-REEL7	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BRUZ	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP

与AD7490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

53
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

42
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

70
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

66

产品中心

服务支持

精选活动

关于我们

帮助中心

AD7490

AD7490 数据手册

与AD7490相关器件

与AD7490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

AD7490

AD7490 数据手册

与AD7490相关器件

与AD7490相关文章

您还可以找

您在本页遇到什么问题？