AD9215-65 Analog Devices, AD9215-65 Datasheet

AD9215-65

Manufacturer Part Number

AD9215-65

Description

10-Bit, 65/80/105 MSPS 3.3 V A/D Converter

Manufacturer

Analog Devices

Datasheet

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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. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

PRODUCT DESCRIPTION

The AD9215 is a family of monolithic, single 3 V supply, 10-bit,

65/80/105 MSPS analog-to-digital converters. This family

features a high performance sample-and-hold amplifier and

voltage reference. The AD9215 uses a multistage differential

pipelined architecture with output error correction logic to

provide 10-bit accuracy at 105 MSPS data rates and guarantee

no missing codes over the full operating temperature range.

The wide bandwidth, truly differential SHA allows for a variety

of user-selectable input ranges and offsets including single-ended

applications. It is suitable for multiplexed systems that switch

full-scale voltage levels in successive channels and for sampling

single-channel inputs at frequencies well beyond the Nyquist rate.

Combined with power and cost savings over previously available

analog-to-digital converters, the AD9215 is suitable for applica-

tions in communications, imaging and medical ultrasound.

A single-ended clock input is used to control all internal conversion

cycles. A duty cycle stabilizer compensates for wide variations in

the cock duty cycle while maintaining excellent performance.

The digital output data is presented in straight binary or two’s

complement formats. An out-of-range signal indicates an over-

flow condition, which can be used with the most significant bit

to determine low or high overflow.

Fabricated on an advanced CMOS process, the AD9215 is avail-

able in both a 28-lead surface-mount plastic package and a

32-lead chip scale package, and is specified over the industrial

temperature range (–40°C to +85°C).

REV. PrA

FEATURES

Single 3 V Supply Operation (2.7 V to 3.6 V)

SNR = 58 dBc (to Nyquist)

SFDR = 78 dBc (to Nyquist)

Low Power: 75 mW at 65 MSPS

Differential Input with 400 MHz Bandwidth

On-Chip Reference and SHA

DNL =

Flexible Analog Input: 1 V p-p to 2 V p-p Range

Offset Binary or Two’s Complement Data Format

Clock Duty Cycle Stabilizer

APPLICATIONS

Ultrasound Equipment

IF Sampling in Communications Receivers:

Battery-Powered Instruments

Hand-Held Scopemeters

Low Cost Digital Oscilloscopes

0.25 LSB

PRODUCT HIGHLIGHTS

1. The AD9215 operates from a single 3 V power supply, and

2. Operating at 105 MSPS, the AD9215 consumes a low 120 mW.

3. The patented SHA input maintains excellent performance

4. The AD9215 is pin compatible with the AD9235, a 12-bit,

5. The clock duty cycle stabilizer maintains performance over a

6. The OR output bit indicates when the signal is beyond the

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

Tel: 781/329-4700

Fax: 781/326-8703

SENSE

REFB

VREF

REFT

VIN+

VIN–

features a separate digital output driver supply to accommo-

date 2.5 V and 3.3 V logic families.

for input frequencies up to 200 MHz, and can be configured

for single-ended or differential operation.

20/40/65 MSPS A/D converter. This allows a simplified

upgrade from 10 to 12 bits for systems up to 65 MSPS.

wide range of clock pulsewidths.

selected input range.

SELECT

REF

FUNCTIONAL BLOCK DIAGRAM

AD9215

SHA

10-Bit, 65/80/105 MSPS

AVDD

AGND

0.5V

DUTY CYCLE

STABLIZER

CLOCK

3 V A/D Converter

CLOCK

1 1/2-BIT PIPELINE

CORRECTION LOGIC

OUTPUT BUFFERS

7-STAGE

PDWN

DRVDD

SELECT

MODE

AD9215

www.analog.com

A/D

DRGND

D9 (MSB)

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