ltc2258cuj-14 Linear Technology Corporation, ltc2258cuj-14 Datasheet

ltc2258cuj-14

Manufacturer Part Number

ltc2258cuj-14

Description

14-bit, 65/40/25msps Ultralow Power 1.8v Adcs

Manufacturer

Linear Technology Corporation

Datasheet

1.LTC2258CUJ-14.pdf (32 pages)

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Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

ltc2258cuj-14#PBF

Manufacturer:

LINEAR/凌特

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FEATURES

APPLICATIONS

TYPICAL APPLICATION

ANALOG

65MHz

CLOCK

INPUT

73.9dB SNR

88dB SFDR

Low Power: 81mW/49mW/35mW

Single 1.8V Supply

CMOS, DDR CMOS or DDR LVDS Outputs

Selectable Input Ranges: 1V

800MHz Full-Power Bandwidth S/H

Optional Data Output Randomizer

Optional Clock Duty Cycle Stabilizer

Shutdown and Nap Modes

Serial SPI Port for Conﬁ guration

Pin Compatible 14-Bit and 12-Bit Versions

40-Pin (6mm × 6mm) QFN Package

Communications

Cellular Base Stations

Software Deﬁ ned Radios

Portable Medical Imaging

Multi-Channel Data Acquisition

Nondestructive Testing

–

CLOCK/DUTY

INPUT

CONTROL

S/H

CYCLE

PIPELINED

ADC CORE

14-BIT

P-P

1.8V

to 2V

GND

CORRECTION

P-P

LOGIC

DRIVERS

OUTPUT

225814 TA01a

DESCRIPTION

The LTC

pling 14-bit A/D converters designed for digitizing high

frequency, wide dynamic range signals. They are perfect

for demanding communications applications with AC

performance that includes 73.9dB SNR and 88dB spurious

free dynamic range (SFDR). Ultralow jitter of 0.17ps

allows undersampling of IF frequencies with excellent

noise performance.

DC specs include ±1LSB INL (typical), ±0.3LSB DNL (typi-

cal) and no missing codes over temperature. The transition

noise is a low 1.2LSB

The digital outputs can be either full rate CMOS, double

data rate CMOS, or double data rate LVDS. A separate

output power supply allows the CMOS output swing to

range from 1.2V to 1.8V.

The ENC

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

CMOS inputs. An optional clock duty cycle stabilizer al-

lows high performance at full speed for a wide range of

clock duty cycles.

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

All other trademarks are the property of their respective owners.

Ultralow Power 1.8V ADCs

TO 1.8V

D13

1.2V

•

LTC2257-14/LTC2256-14

Electrical Specifications Subject to Change

OGND

CMOS

LVDS

2258-14/LTC2257-14/LTC2256-14 are sam-

and ENC

14-Bit, 65/40/25Msps

–

RMS

inputs may be driven differentially

–100

–110

–120

2-Tone FFT, f

–10

–20

–30

–40

–50

–60

–70

–80

–90

LTC2258-14

FREQUENCY (MHz)

= 68MHz and 69MHz

225814 TA01b

225814p

RMS

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