LTC2294 データシートの表示（PDF） - Linear Technology

部品番号

コンポーネント説明

メーカー

LTC2294

Dual 12-Bit, 80Msps Low Power 3V ADC

Linear Technology 

FEATURES

■ Integrated Dual 12-Bit ADCs

■ Sample Rate: 80Msps

■ Single 3V Supply (2.7V to 3.4V)

■ Low Power: 422mW

■ 70.6dB SNR at 70MHz Input

■ 90dB SFDR at 70MHz Input

■ 110dB Channel Isolation at 100MHz

■ 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 × 9Umm) QFN Package

APPLICATIO S

■ Wireless and Wired Broadband Communication

■ Imaging Systems

■ Spectral Analysis

■ Portable Instrumentation

LTC2294

Dual 12-Bit, 80Msps

Low Power 3V ADC

DESCRIPTIO

The LTC®2294 is a 12-bit 80Msps, low power dual 3V

A/D converter designed for digitizing high frequency, wide

dynamic range signals. The LTC2294 is perfect for

demanding imaging and communications applications

with AC performance that includes 70.6dB SNR and 90dB

SFDR for signals well beyond the Nyquist frequency.

DC specs include ±0.4LSB INL (typ), ±0.2LSB DNL (typ)

and no missing codes over temperature. The transition

noise is a low 0.3LSBRMS.

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

–

12-BIT

PIPELINED

ADC CORE

CLK A

CLK B

CLOCK/DUTY CYCLE

CONTROL

CLOCK/DUTY CYCLE

CONTROL

ANALOG

INPUT B

+

INPUT

S/H

–

12-BIT

PIPELINED

ADC CORE

OUTPUT

DRIVERS

OVDD

D11A

•••

D0A

OGND

MUX

OUTPUT

DRIVERS

OVDD

D11B

•••

D0B

OGND

2294 TA01

SNR vs Input Frequency,

–1dB, 2V Range

75

74

73

72

71

70

69

68

67

66

65

0

50

100

150

INPUT FREQUENCY (MHz)

200

2294 TA02

2294fa

1

Share Link: