AD7492ARUZ-REEL7 Analog Devices Inc, AD7492ARUZ-REEL7 Datasheet

IC,A/D CONVERTER,SINGLE,12-BIT,TSSOP,24PIN

AD7492ARUZ-REEL7

Manufacturer Part Number

AD7492ARUZ-REEL7

Description

IC,A/D CONVERTER,SINGLE,12-BIT,TSSOP,24PIN

Manufacturer

Analog Devices Inc

Datasheet

1.AD7492ARUZ.pdf (16 pages)

Specifications of AD7492ARUZ-REEL7

Number Of Bits

Sampling Rate (per Second)

Data Interface

Parallel

Number Of Converters

Power Dissipation (max)

16.5mW

Voltage Supply Source

Analog and Digital

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

24-TSSOP (0.173", 4.40mm Width)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

EVAL-AD7492CBZ - BOARD EVALUATION FOR AD7492

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD7492ARUZ-REEL7

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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GENERAL DESCRIPTION

The AD7492 and AD7492-5 are 12-bit high-speed, low power,

successive-approximation ADCs. The parts operate from a

single 2.7 V to 5.25 V power supply and feature throughput rates

up to 1.25 MSPS. They contain a low-noise, wide bandwidth

track/hold amplifier that can handle bandwidths up to 10 MHz.

The conversion process and data acquisition are controlled using

standard control inputs allowing easy interface to microproces-

sors or DSPs. The input signal is sampled on the falling edge of

CONVST and conversion is also initiated at this point. The

BUSY goes high at the start of conversion and goes low 880 ns

(AD7492) or 680 ns (AD7492-5) later to indicate that the con-

version is complete. There are no pipeline delays associated with

the part. The conversion result is accessed via standard CS and

RD signals over a high-speed parallel interface.

The AD7492 uses advanced design techniques to achieve very

low power dissipation at high throughput rates. With 5 V

supplies and 1.25 MSPS, the average current consumption

AD7492-5 is typically 2.75 mA. The part also offers flexible

power/throughput rate management.

It is also possible to operate the part in a full sleep mode and a

partial sleep mode, where the part wakes up to do a conversion

and automatically enters a sleep mode at the end of conversion.

The type of sleep mode is hardware selected by the PS/FS pin.

Using these sleep modes allows very low power dissipation num-

bers at lower throughput rates.

The analog input range for the part is 0 to REF IN. The 2.5 V

reference is supplied internally and is available for external refer-

encing. The conversion rate is determined by the internal clock.

1.25 MSPS, 16 mW Internal REF and CLK,

PRODUCT HIGHLIGHTS

1. High Throughput with Low Power Consumption

2. Flexible Power/Throughput Rate Management

3. No Pipeline Delay

4. Flexible Digital Interface

5. Fewer Peripheral Components

CONVST

The AD7492-5 offers 1.25 MSPS throughput with 16 mW

power consumption.

The conversion time is determined by an internal clock. The

part also features two sleep modes, partial and full, to maxi-

mize power efficiency at lower throughput rates.

The part features a standard successive-approximation ADC

with accurate control of the sampling instant via a CONVST

input and once-off conversion control.

The V

digital pins.

The AD7492 optimizes PCB space by using an internal

Reference and internal CLK.

VIN

DRIVE

2.5V

REF

FUNCTIONAL BLOCK DIAGRAM

AD7492

AVDD

feature controls the voltage levels on the I/O

T/H

DVDD

BUF

12-Bit Parallel ADC

AGND

12-BIT SAR

CONTROL

REF OUT

LOGIC

ADC

OSCILLATOR

CLOCK

DGND

DRIVERS

OUTPUT

VDRIVE

AD7492

DB11

DB0

PS/FS

BUSY

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