Datasheet > AD7490BRU-EP-RL7

AD7490BRU-EP-RL7

更新时间： 2024-12-01 19:50:03

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管转换器
页数	文件大小	规格书
12页	368K
描述
IC 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO28, PLASTIC, MO-153AE, TSSOP-28, Analog to Digital Converter

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AD7490BRU-EP-RL7 数据手册

16-Channel, 1 MSPS, 12-Bit ADC

with Sequencer in 28-Lead TSSOP

AD7490-EP

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Fast throughput rate: 1 MSPS

Specified for V_DDof 4.75 V to 5.25 V

Low power at maximum throughput rates

12.5 mW maximum at 1 MSPS with 5 V supplies

16 (single-ended) inputs with sequencer

Wide input bandwidth

AD7490-EP

REF

12-BIT

SUCCESSIVE

T/H

APPROXIMATION

ADC

INPUT

MUX

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 µA maximum

28-lead TSSOP package

SCLK

DOUT

DIN

CONTROL

LOGIC

SEQUENCER

DRIVE

Support defense and aerospace applications (AQEC)

Military temperature range (−55°C to +125°C)

Controlled manufacturing baseline

One assembly/test site

AGND

Figure 1.

One fabrication site

Enhanced product change notification

Qualification data available on request

GENERAL DESCRIPTION

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

successive approximation ADC. The part operates from a single

4.75 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.

The AD7490-EP is available in a 28-lead TSSOP package.

Full details about this enhanced product are available in the

AD7490 data sheet, which should be consulted in conjunction

with this data sheet.

PRODUCT HIGHLIGHTS

1. The AD7490-EP offers up to 1 MSPS throughput rates.

2. A sequence of channels can be selected, through which the

AD7490-EP cycles and converts.

3. The AD7490-EP operates from a single 4.75 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

The conversion process and data acquisition are controlled using

and the serial clock signal, allowing the device to easily inter-

face with microprocessors or DSPs. The input signal is sampled

on the falling edge of , and conversion is also initiated at this

point. There are no pipeline delays associated with the part.

The AD7490-EP uses advanced design techniques to achieve

very low power dissipation at high throughput rates. For

maximum throughput rates, the AD7490-EP consumes just

2.5 mA with 5 V supplies.

independent of V_DD

4. 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, maximum,

when in full shutdown.

By setting the relevant bits in the control register, the analog input

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

0 V to 2 × REF_INinput, with either straight binary or twos comple-

ment output coding. The AD7490-EP features 16 single-ended

analog inputs with a channel sequencer to allow a preprogrammed

selection of channels to be converted sequentially. The conver-

sion time is determined by the SCLK frequency because this is

also used as the master clock to control the conversion.

5. The part features a standard successive approximation

ADC with accurate control of the sampling instant via a

input and once off conversion control.

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

rightsof third parties that may result fromits 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 andregisteredtrademarks 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...12

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与AD7490BRU-EP-RL7相关器件

型号	品牌	获取价格	描述	数据表
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
AD7490BRUZ-REEL	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490BRUZ-REEL7	ADI	获取价格	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7490SRUZ-EP-RL7	ADI	获取价格	16-Channel, 1MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP
AD7492	ADI	获取价格	Evaluation Board for 12-bit high speed, low power, successive-approximation ADC
AD7492_01	ADI	获取价格	1.25 MSPS, 16 mW Internal REF and CLK, 12-Bit Parallel ADC
AD7492_17	ADI	获取价格	1.25 MSPS, 16 mW Internal REF 12-Bit Parallel ADC
AD7492AR	ADI	获取价格	1.25 MSPS, 16 mW Internal REF and CLK, 12-Bit Parallel ADC

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