LTC2281 Series

Dual 10-Bit, 125Msps Low Power 3V ADC

Catalog

Dual 10-Bit, 125Msps Low Power 3V ADC

Part	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Data Interface	Input Type	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Number of Bits [custom]	Number of A/D Converters	Package / Case	Features	Configuration	Sampling Rate (Per Second)	Ratio - S/H:ADC	Mounting Type	Architecture	Number of Inputs	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]
Analog Devices LTC2281IUP#TRPBF	64-QFN (9x9)	85 °C	-40 °C	External Internal	Parallel	Differential Single Ended	2.85 V	3.4 V	10	2	64-WFQFN Exposed Pad	Simultaneous Sampling	S/H-ADC	125 M	1:1	Surface Mount	Pipelined	2	3.4 V	2.85 V

Catalog

Dual 10-Bit, 125Msps Low Power 3V ADC

Key Features

• Integrated Dual 10-Bit ADCs

• Sample Rate: 125Msps

• Single 3V Supply (2.85V to 3.4V)

• Low Power: 790mW

• 61.6dB SNR, 85dB SFDR

• 110dB Channel Isolation at 100MHz

• Flexible Input: 1VP-Pto 2VP-PRange

• 640MHz Full Power Bandwidth S/H

• Clock Duty Cycle Stabilizer

• Shutdown and Nap Modes

• Data Ready Output Clock

• Pin Compatible Family125Msps: LTC2283 (12-Bit), LTC2281 (10-Bit)105Msps: LTC2282 (12-Bit), LTC2280 (10-Bit)80Msps: LTC2294 (12-Bit), LTC2289 (10-Bit)65Msps: LTC2293 (12-Bit), LTC2288 (10-Bit)40Msps: LTC2292 (12-Bit), LTC2287 (10-Bit)

• 125Msps: LTC2283 (12-Bit), LTC2281 (10-Bit)

• 105Msps: LTC2282 (12-Bit), LTC2280 (10-Bit)

• 80Msps: LTC2294 (12-Bit), LTC2289 (10-Bit)

• 65Msps: LTC2293 (12-Bit), LTC2288 (10-Bit)

• 40Msps: LTC2292 (12-Bit), LTC2287 (10-Bit)

• 64-Pin (9mm × 9mm) QFN Package

Description

The LTC2281 is a 10-bit 125Msps, low power dual 3V A/D converter designed for digitizing high frequency, wide dynamic range signals. The LTC2281 is perfect for demanding imaging and communications applications with AC performance that includes 61.6dB SNR and 82dB SFDR for signals at the Nyquist frequency.Typical DC specs include ±0.1LSB INL, ±0.1LSB DNL. The transition noise is a low 0.08LSBRMS.A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V logic.A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles. A data ready output clock (CLKOUT) can be used to latch the output data.ApplicationsWireless and Wired Broadband CommunicationImaging SystemsSpectral AnalysisPortable Instrumentation