REV. D

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a

AD9214

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

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

10-Bit, 65/80/105 MSPS

3 V A/D Converter

FUNCTIONAL BLOCK DIAGRAM

REF

TIMING

10

10

AGND

AD9214

PWRDWN

OR

DGND

ENCODE

DFS/GAIN

REFSENSE

REF

PIPELINE

ADC

CORE

T/H

BUFFER

FEATURES

SNR = 57 dB @ 39 MHz Analog Input (–0.5 dBFS)

Low Power

190 mW at 65 MSPS

285 mW at 105 MSPS

30 mW Power-Down Mode

300 MHz Analog Bandwidth

On-Chip Reference and Track/Hold

1 V p-p or 2 V p-p Analog Input Range Option

Single 3.3 V Supply Operation (2.7 V–3.6 V)

Two’s Complement or Offset Binary Data Format Option

APPLICATIONS

Battery-Powered Instruments

Hand-Held Scopemeters

Low-Cost Digital Oscilloscopes

Ultrasound Equipment

Cable Reverse Path

Broadband Wireless

Residential Power Line Networks

PRODUCT DESCRIPTION

The AD9214 is a 10-bit monolithic sampling analog-to-digital

converter (ADC) with an on-chip track-and-hold circuit, and

is optimized for low cost, low power, small size, and ease of use.

The product operates up to 105 MSPS conversion rate with

outstanding dynamic performance over its full operating range.

The ADC requires only a single 3.3 V (2.7 V to 3.6 V) power

supply and an encode clock for full performance operation. No

external reference or driver components are required for many

applications. The digital outputs are TTL/CMOS compatible

and a separate output power supply pin supports interfacing

with 3.3 V or 2.5 V logic.

The clock input is TTL/CMOS compatible. In the power-down

state, the power is reduced to 30 mW. A gain option allows

support for either 1 V p-p or 2 V p-p analog signal input swing.

Fabricated on an advanced CMOS process, the AD9214 is

available in a 28-lead surface-mount plastic package (28-SSOP)

specified over the industrial temperature range (–40

°C to +85°C).

PRODUCT HIGHLIGHTS

High Performance—Outstanding ac performance from 65 MSPS

to 105 MSPS. SNR greater than 55 dB typical and as high

as 58 dB.

Low Power—The AD9214 at 285 mW consumes a fraction of

the power available in existing high-speed monolithic solutions.

In sleep mode, power is reduced to 30 mW.

Single Supply—The AD9214 uses a single 3 V supply, simplify-

ing system power supply design. It also features a separate digital

output driver supply line to accommodate 2.5 V logic families.

Small Package—The AD9214 is packaged in a small 28-lead

surface-mount plastic package (28-SSOP).