LTC1277ISW#PBF

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Analog Devices

12-BIT, 10MW, 100KSPS ADCS WITH 1ΜA SHUTDOWN

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LTC1277ISW#PBF

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Analog Devices

12-BIT, 10MW, 100KSPS ADCS WITH 1ΜA SHUTDOWN

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DocumentsDatasheet R107 Reliability Data

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC1277ISW#PBF

Architecture	SAR
Configuration	S/H-ADC
Data Interface	Parallel
Input Type	Single Ended, Differential
Mounting Type	Surface Mount
Number of A/D Converters	1
Number of Bits	12 bits
Number of Inputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	24-SOIC
Package / Case [custom]	7.5 mm
Package / Case [custom]	0.295 in
Ratio - S/H:ADC	1:1
Reference Type	External, Internal
Sampling Rate (Per Second)	100k
Supplier Device Package	24-SOIC
Voltage - Supply, Analog	5 V
Voltage - Supply, Analog [Max]	5.25 V
Voltage - Supply, Analog [Min]	-2.45 V
Voltage - Supply, Digital [Max]	5.25 V
Voltage - Supply, Digital [Min]	2.7 V

LTC1277 Series

12-Bit, 10mW, 100ksps ADCs with 1µA Shutdown

Part	Package / Case [custom]	Package / Case	Package / Case [custom]	Data Interface	Operating Temperature [Max]	Operating Temperature [Min]	Number of Inputs	Input Type	Supplier Device Package	Sampling Rate (Per Second)	Reference Type	Number of Bits	Mounting Type	Ratio - S/H:ADC	Architecture	Voltage - Supply, Analog	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Configuration	Number of A/D Converters
Analog Devices LTC1277ISW#PBF	7.5 mm	24-SOIC	0.295 in	Parallel	85 °C	-40 °C	1	Differential Single Ended	24-SOIC	100k	External Internal	12 bits	Surface Mount	1:1	SAR	5 V	-2.45 V	5.25 V	5.25 V	2.7 V	S/H-ADC	1
Analog Devices LTC1277CSW#PBF	7.5 mm	24-SOIC	0.295 in	Parallel	70 °C	0 °C	1	Differential Single Ended	24-SOIC	100k	External Internal	12 bits	Surface Mount	1:1	SAR	5 V	-2.45 V	5.25 V	5.25 V	2.7 V	S/H-ADC	1
Analog Devices LTC1277CSW#TRPBF	7.5 mm	24-SOIC	0.295 in	Parallel	70 °C	0 °C	1	Differential Single Ended	24-SOIC	100k	External Internal	12 bits	Surface Mount	1:1	SAR	5 V	-2.45 V	5.25 V	5.25 V	2.7 V	S/H-ADC	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 24.54
		10	$ 18.08
		25	$ 16.42
		100	$ 14.57
		250	$ 13.68
		500	$ 13.54

Description

General part information

LTC1277 Series

The LTC1274/LTC1277 are 8µs sampling 12-bit A/D converters which draw only 2mA (typ) from single 5V or ±5V supplies. These easy-to-use devices come complete with a 2µs sample-and-hold, a precision reference and an internally trimmed clock. Unipolar and bipolar conversion modes add to the flexibility of the ADCs.Two power-down modes are available in the LTC1277. In Napmode, the LTC1277 draws only 180µA and the instant wake-up from Nap mode allows the LTC1277 to be powered down even during brief inactive periods. In Sleep mode only 1µA will be drawn. A REFRDY signal is used to show the ADC is ready to sample after waking up from Sleep mode. The LTC1274 also provides the Sleep mode and REFRDY signal.The A/D converters convert 0V to 4.096V unipolar inputs from a single 5V supply or ±2.048V bipolar inputs from ±5V supplies.The LTC1274 has a single-ended input and a 12-bit parallel data format. The LTC1277 offers a differential input and a 2-byte read format. The bipolar mode is formatted as 2’s complement for the LTC1274 and offset binary for the LTC1277.ApplicationsBattery-Powered Portable SystemsHigh Speed Data Acquisition for PCsDigital Signal ProcessingMultiplexed Data Acquisition SystemsAudio and Telecom ProcessingSpectrum Analysis