AD7476SRTZ-R2 Analog Devices Inc, AD7476SRTZ-R2 Datasheet

AD7476SRTZ-R2

Manufacturer Part Number

AD7476SRTZ-R2

Description

IC,A/D CONVERTER,SINGLE,12-BIT,TSOP,6PIN

Manufacturer

Analog Devices Inc

Datasheets

1.AD7477SRT-R2.pdf (24 pages)

2.AD7476ARTZ-500RL7.pdf (20 pages)

Specifications of AD7476SRTZ-R2

Design Resources

Output Channel Monitoring Using AD5380 (CN0008) AD5382 Channel Monitor Function (CN0012) AD5381 Channel Monitor Function (CN0013) AD5383 Channel Monitor Function (CN0015) AD5390/91/92 Channel Monitor Function (CN0030) Power off protected data acquisition signal chain using ADG4612 , AD711, and AD7476 (CN0165)

Number Of Bits

Sampling Rate (per Second)

Data Interface

DSP, MICROWIRE™, QSPI™, Serial, SPI™

Number Of Converters

Power Dissipation (max)

17.5mW

Voltage Supply Source

Single Supply

Operating Temperature

-55°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

SOT-23-6

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

EVAL-AD7476ACBZ - BOARD EVALUATION FOR AD7476AAD7476-DBRD - BOARD EVAL FOR AD7476AD7476A-DBRD - BOARD EVAL FOR AD7476A

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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FEATURES

Fast throughput rate: 1 MSPS

Specified for V

Low power

Wide input bandwidth

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface

Standby mode: 1 μA maximum

6-lead SOT-23 package

APPLICATIONS

Battery-powered systems

Instrumentation and control systems

Data acquisition systems

High speed modems

Optical sensors

GENERAL DESCRIPTION

The AD7476/AD7477/AD7478

and 8-bit, high speed, low power, successive approximation

ADCs. The parts operate from a single 2.35 V to 5.25 V power

supply and feature throughput rates up to 1 MSPS. Each part

contains a low noise, wide bandwidth track-and-hold amplifier

that can handle input frequencies in excess of 6 MHz.

The conversion process and data acquisition are controlled

using CS and the serial clock, allowing the devices to interface

with microprocessors or DSPs. The input signal is sampled on

the falling edge of CS and the conversion is initiated at this

point. There are no pipeline delays associated with these parts.

The AD7476/AD7477/AD7478 use advanced design techniques

to achieve very low power dissipation at high throughput rates.

The reference for the parts is taken internally from V

allows the widest dynamic input range to the ADC. Thus, the

analog input range for the parts are 0 V to V

rate is determined by the SCLK.

Rev. E

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.

Protected by U.S. Patent No. 6,681,332.

3.6 mW typical at 1 MSPS with 3 V supplies

15 mW typical at 1 MSPS with 5 V supplies

70 dB SNR at 100 kHz input frequency

SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible

Personal digital assistants

Medical instruments

Mobile communications

of 2.35 V to 5.25 V

are, respectively, 12-bit, 10-bit,

. The conversion

. This

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

Tel: 781.329.4700

Fax: 781.461.3113

PRODUCT HIGHLIGHTS

First 12-/10-/8-Bit ADCs in SOT-23 Packages.

High Throughput with Low Power Consumption.

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. This allows the average power consumption

to be reduced while not converting. The parts also feature a

shutdown mode to maximize power efficiency at lower

throughput rates. Current consumption is 1 μA maximum

when in shutdown mode.

Reference Derived from the Power Supply.

No Pipeline Delay. The parts feature a standard successive-

approximation ADC with accurate control of the sampling

instant via a CS input and once-off conversion control.

1 MSPS, 12-/10-/8-Bit ADCs

AD7476/AD7477/AD7478

FUNCTIONAL BLOCK DIAGRAM

AD7476/AD7477/AD7478

APPROXIMATION

SUCCESSIVE-

12-/10-/8-BIT

CONTROL

in 6-Lead SOT-23

LOGIC

Figure 1.

ADC

GND

SCLK

SDATA

www.analog.com

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