LTC2295I 查看數據表（PDF） - Linear Technology

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LTC2295I

Dual 14-Bit, 10Msps Low Power 3V ADC

Linear Technology 

FEATURES

■ Integrated Dual 14-Bit ADCs

■ Sample Rate: 10Msps

■ Single 3V Supply (2.7V to 3.4V)

■ Low Power: 120mW

■ 74.4dB SNR

■ 90dB SFDR

■ 110dB Channel Isolation

■ Multiplexed or Separate Data Bus

■ Flexible Input: 1VP-P to 2VP-P Range

■ 575MHz Full Power Bandwidth S/H

■ Clock Duty Cycle Stabilizer

■ Shutdown and Nap Modes

■ Pin Compatible Family

105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)

80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)

65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)

40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)

25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit)

10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit)

■ 64-Pin (9mm × 9mm) QFN Package

U

APPLICATIO S

■ Wireless and Wired Broadband Communication

■ Imaging Systems

■ Spectral Analysis

■ Portable Instrumentation

LTC2295

Dual 14-Bit, 10Msps

Low Power 3V ADC

DESCRIPTIO

The LTC®2295 is a 14-bit 10Msps, low power dual 3V

A/D converter designed for digitizing high frequency, wide

dynamic range signals. The LTC2295 is perfect for

demanding imaging and communications applications

with AC performance that includes 74.4dB SNR and 90dB

SFDR for signals well beyond the Nyquist frequency.

DC specs include ±1.2LSB INL (typ), ±0.5LSB DNL (typ)

and no missing codes over temperature. The transition

noise is a low 1LSBRMS.

A single 3V supply allows low power operation. A separate

output supply allows the outputs to drive 0.5V to 3.6V

logic. An optional multiplexer allows both channels to

share a digital output bus.

A single-ended CLK input controls converter operation. An

optional clock duty cycle stabilizer allows high perfor-

mance at full speed for a wide range of clock duty cycles.

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

All other trademarks are the property of their respective owners.

TYPICAL APPLICATIO

ANALOG

INPUT A

+

INPUT

S/H

–

14-BIT

PIPELINED

ADC CORE

CLK A

CLK B

CLOCK/DUTY CYCLE

CONTROL

CLOCK/DUTY CYCLE

CONTROL

ANALOG

INPUT B

+

INPUT

S/H

–

14-BIT

PIPELINED

ADC CORE

OUTPUT

DRIVERS

OVDD

D13A

•••

D0A

OGND

MUX

OUTPUT

DRIVERS

OVDD

D13B

•••

D0B

OGND

2295 TA01

Typical INL, 2V Range

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

0

4096

8192

CODE

12288 16384

2295 G02

2295fa

1

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