LTC2223 Linear Technology, LTC2223 Datasheet

LTC2223

Manufacturer Part Number

LTC2223

Description

(LTC2222 / LTC2223) 105Msps/80Msps ADCs

Manufacturer

Linear Technology

Datasheet

1.LTC2223.pdf (28 pages)

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FEATURES

■

APPLICATIO S

■

TYPICAL APPLICATIO

ANALOG

INPUT

REFH

REFL

Sample Rate: 105Msps/80Msps

68dB SNR up to 140MHz Input

80dB SFDR up to 170MHz Input

775MHz Full Power Bandwidth S/H

Single 3.3V Supply

Low Power Dissipation: 475mW/366mW

Selectable Input Ranges: ±0.5V or ±1V

No Missing Codes

Optional Clock Duty Cycle Stabilizer

Shutdown and Nap Modes

Data Ready Output Clock

Pin Compatible Family

135Msps: LTC2224 (12-Bit), LTC2234 (10-Bit)

105Msps: LTC2222 (12-Bit), LTC2232 (10-Bit)

80Msps: LTC2223 (12-Bit), LTC2233 (10-Bit)

48-Pin QFN Package

Wireless and Wired Broadband Communication

Cable Head-End Systems

Power Amplifier Linearization

Communications Test Equipment

–

CLOCK/DUTY

REFERENCE

INPUT

CONTROL

FLEXIBLE

ENCODE

S/H

CYCLE

INPUT

PIPELINED

ADC CORE

12-BIT

3.3V

CORRECTION

LOGIC

DRIVERS

OUTPUT

DESCRIPTIO

The LTC

pling 12-bit A/D converters designed for digitizing high

frequency, wide dynamic range signals. The LTC2222/

LTC2223 are perfect for demanding communications

applications with AC performance that includes 68dB SNR

and 80dB spurious free dynamic range for signals

up to 170MHz. Ultralow jitter of 0.15ps

undersampling of IF frequencies with excellent noise

performance.

DC specs include ±0.3LSB INL (typ), ±0.2LSB DNL (typ)

and no missing codes over temperature. The transition

noise is a low 0.5LSB

A separate output power supply allows the outputs to drive

0.5V to 3.6V logic.

The ENC

single ended with a sine wave, PECL, LVDS, TTL, or CMOS

inputs. An optional clock duty cycle stabilizer allows high

performance at full speed for a wide range of clock duty

cycles.

All other trademarks are the property of their respective owners.

22201 TA01

, LTC and LT are registered trademarks of Linear Technology Corporation.

2222 and LTC2223 are 105Msps/80Msps, sam-

D11

0.5V TO 3.6V

0GND

and ENC

•

–

LTC2222/LTC2223

inputs may be driven differentially or

RMS

100

12-Bit,105Msps/

80Msps ADCs

SFDR vs Input Frequency

100

INPUT FREQUENCY (MHz)

200

4th OR HIGHER

300

2nd or 3rd

400

RMS

500

allows

22223 TA01b

22223fa

600

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