Integrated Circuits (ICs)

LT1720CS8#PBF

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Analog Devices

ANALOG COMPARATOR, HIGH SPEED, 2 CHANNELS, 4.5 NS, 2.7V TO 6V, SOIC, 8 PINS

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Integrated Circuits (ICs)

LT1720CS8#PBF

Active

Analog Devices

ANALOG COMPARATOR, HIGH SPEED, 2 CHANNELS, 4.5 NS, 2.7V TO 6V, SOIC, 8 PINS

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DocumentsDatasheet R377 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1720CS8#PBF

CMRR, PSRR (Typ)	70 dB, 80 dB
Current - Input Bias (Max) [Max]	6 µA
Current - Output (Typ)	20 mA
Current - Quiescent (Max) [Max]	7 mA
Hysteresis	7 mV
Mounting Type	Surface Mount
Number of Elements	2
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Type	TTL, CMOS, Rail-to-Rail
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SO
Type	General Purpose
Voltage - Input Offset (Max)	3 mV
Voltage - Supply, Single/Dual (±) [Max]	6 V
Voltage - Supply, Single/Dual (±) [Min]	2.7 V

LT1720 Series

Dual, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs

Part	Hysteresis	Output Type	Package / Case	Package / Case [custom]	Package / Case	Number of Elements	Type	Current - Input Bias (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input Offset (Max)	Supplier Device Package	Current - Quiescent (Max) [Max]	CMRR, PSRR (Typ)	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Current - Output (Typ)	Mounting Type	Package / Case [y]	Package / Case [x]
Analog Devices LT1720CMS8#PBF	7 mV	CMOS Rail-to-Rail TTL	8-MSOP 8-TSSOP	0.118 in	3 mm	2	General Purpose	6 µA	70 °C	0 °C	3 mV	8-MSOP	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount
Analog Devices LT1720IMS8#PBF	7 mV	CMOS Rail-to-Rail TTL	8-MSOP 8-TSSOP	0.118 in	3 mm	2	General Purpose	6 µA	85 °C	-40 °C	3 mV	8-MSOP	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount
Analog Devices LT1720IMS8	7 mV	CMOS Rail-to-Rail TTL	8-MSOP 8-TSSOP	0.118 in	3 mm	2	General Purpose	6 µA	85 °C	-40 °C	3 mV	8-MSOP	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount
Analog Devices LT1720CS8#TRPBF	7 mV	CMOS Rail-to-Rail TTL	8-SOIC			2	General Purpose	6 µA	70 °C	0 °C	3 mV	8-SO	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount	3.9 mm	0.154 in
Analog Devices LT1720CDD#PBF	7 mV	CMOS Rail-to-Rail TTL	8-WFDFN Exposed Pad			2	General Purpose	6 µA	70 °C	0 °C	3 mV	8-DFN (3x3)	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount
Analog Devices LT1720CS8#PBF	7 mV	CMOS Rail-to-Rail TTL	8-SOIC			2	General Purpose	6 µA	70 °C	0 °C	3 mV	8-SO	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount	3.9 mm	0.154 in
Analog Devices LT1720IMS8#TRPBF	7 mV	CMOS Rail-to-Rail TTL	8-MSOP 8-TSSOP	0.118 in	3 mm	2	General Purpose	6 µA	85 °C	-40 °C	3 mV	8-MSOP	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount
Analog Devices LT1720IS8#PBF	7 mV	CMOS Rail-to-Rail TTL	8-SOIC			2	General Purpose	6 µA	85 °C	-40 °C	3 mV	8-SO	7 mA	70 dB 80 dB	2.7 V	6 V	20 mA	Surface Mount	3.9 mm	0.154 in

Pricing

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

Distributor	Package	Quantity	$

Arrow	N/A	100	$ 5.31
Digikey	Tube	1	$ 11.79
		10	$ 8.28
		25	$ 7.37
		100	$ 6.36
		250	$ 5.87
		500	$ 5.58
		1000	$ 5.33
Newark	Each	1	$ 11.19
		10	$ 7.65
		25	$ 6.73
		50	$ 6.21
		100	$ 5.69
		300	$ 5.51
		500	$ 5.33

Description

General part information

LT1720 Series

The LT1720/LT1721 are UltraFast™dual/quad comparators optimized for single supply operation, with a supply voltage range of 2.7V to 6V. The input voltage range extends from 100mV below ground to 1.2V below the supply voltage. Internal hysteresis makes the LT1720/LT1721 easy to use even with slow moving input signals. The rail-to-rail outputs directly interface to TTL and CMOS. Alternatively, the symmetric output drive can be harnessed for analog applications or for easy translation to other single supply logic levels.The LT1720 is available in three 8-pin packages; three pins per comparator plus power and ground. In addition to SO and MSOP packages, a 3mm × 3mm low profile (0.8mm) dual fine pitch leadless package (DFN) is available for space limited applications. The LT1721 is available in the 16-pin SSOP and S packages.The pinouts of the LT1720/LT1721 minimize parasitic effects by placing the most sensitive inputs (inverting) away from the outputs, shielded by the power rails. The LT1720/LT1721 are ideal for systems where small size and low power are paramount.ApplicationsHigh Speed Differential Line ReceiverCrystal Oscillator CircuitsWindow ComparatorsThreshold Detectors/DiscriminatorsPulse StretchersZero-Crossing DetectorsHigh Speed Sampling Circuits