LT1671IS8#PBF from Analog Devices, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	V+	power_in	Positive supply voltage, normally 5V; the datasheet's absolute maximum positive supply voltage is 7V.
2	+IN	input	Noninverting comparator input whose common-mode range extends to the negative supply and 1.5V below the positive supply.
3	-IN	input	Inverting comparator input with the same common-mode range as +IN, and differential input voltage limited to ±12V absolute maximum.
4	V-	power_in	Negative supply voltage, normally either 0V or -5V; the absolute maximum negative supply voltage is -7V.
5	LATCH ENABLE	input	Latch control: when high, the outputs stay latched independent of the inputs, and the pin is TTL/CMOS compatible with VIH of 2V minimum and VIL of 0.8V maximum.
6	GND	power_in	Ground pin.
7	Q OUT	output	Noninverting logic output that is high when +IN is above -IN and LATCH ENABLE is low, with continuous output current limited to ±20mA absolute maximum.
8	Q OUT	output	Inverting logic output that is low when +IN is above -IN and LATCH ENABLE is low, with continuous output current limited to ±20mA absolute maximum.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	SOIC-8
Category	Operational Amplifier/Comparator
Pins	8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Input Offset Voltage	VOS		0.8	2.5	mV	RS ≤ 100Ω (Note 4)	2
Input Offset Voltage	VOS			4	mV	● full operating temperature range	2
Input Offset Current	IOS		10	100	nA		2
Input Offset Current	IOS			150	nA	● full operating temperature range	2
Input Bias Current	IB		120	280	nA		2
Input Bias Current	IB			350	nA	● full operating temperature range	2
Input Voltage Range (±5V supplies)	VCMR	-5		3.5	V	● full operating temperature range	2
Input Voltage Range (single 5V supply)	VCMR	0		3.5	V	Single 5V Supply; ● full operating temperature range	2
Common Mode Rejection Ratio	CMRR	55	100		dB	-5V ≤ VCM ≤ 3.5V, TA > 0°C	2
Common Mode Rejection Ratio	CMRR	55			dB	-5V ≤ VCM ≤ 3.3V, TA ≤ 0°C	2
Common Mode Rejection Ratio (single 5V supply)	CMRR	55	100		dB	Single 5V Supply; 0V ≤ VCM ≤ 3.5V, TA > 0°C	2
Common Mode Rejection Ratio (single 5V supply)	CMRR	55			dB	Single 5V Supply; 0V ≤ VCM ≤ 3.3V, TA ≤ 0°C	2
Power Supply Rejection Ratio	PSRR	50	85		dB	4.6V ≤ V+ ≤ 5.4V; ● full operating temperature range	2
Power Supply Rejection Ratio	PSRR	60	90		dB	-7V ≤ V- ≤ -2V; ● full operating temperature range	2
Small Signal Voltage Gain	AV	2500	5000		V/V	1V ≤ VOUT ≤ 2V	2
Output Voltage Swing High	VOH	2.7	3.1		V	V+ ≥ 4.6V, IOUT = 400µA; ● full operating temperature range	3
Output Voltage Swing High	VOH	2.4	3		V	V+ ≥ 4.6V, IOUT = 4mA; ● full operating temperature range	3
Output Voltage Swing Low	VOL		0.3	0.5	V	IOUT = -400µA; ● full operating temperature range	3
Output Voltage Swing Low	VOL			0.4	V	IOUT = -4mA	3
Positive Supply Current	I+		450	800	µA		3
Positive Supply Current	I+			1000	µA	● full operating temperature range	3
Negative Supply Current	I-		75	200	µA		3
Negative Supply Current	I-			250	µA	● full operating temperature range	3
LATCH Pin High Input Voltage	VIH	2			V	● full operating temperature range	3
LATCH Pin Low Input Voltage	VIL			0.8	V	● full operating temperature range	3
LATCH Pin Current	IIL	-1000		-250	nA	VLATCH = 0V; ● full operating temperature range	3
Propagation Delay	tPD1		60	80	ns	∆VIN = 100mV, VOD = 20mV	3
Propagation Delay	tPD1			110	ns	∆VIN = 100mV, VOD = 20mV; ● full operating temperature range	3
Propagation Delay (Note 7)	tPD2		85	100	ns	∆VIN = 100mV, VOD = 5mV	3
Propagation Delay (Note 7)	tPD2			130	ns	∆VIN = 100mV, VOD = 5mV; ● full operating temperature range	3
Differential Propagation Delay (Note 7)	∆tPD		15	30	ns	∆VIN = 100mV, VOD = 5mV	3
Minimum Disable Pulse Width	tPW(D)	30			ns		3
Latch Propagation Delay (Note 8)	tLPD		60		ns		3
Latch Setup Time (Note 8)	tSU		-15		ns		3
Latch Hold Time (Note 8)	tH		35		ns		3
Total Supply Voltage (V+ to V-)	V+ − V-			12	V		2
Positive Supply Voltage	V+			7	V		2
Negative Supply Voltage	V-	-7			V		2
Differential Input Voltage		-12		12	V		2
Input and Latch Current		-10		10	mA	Note 2	2
Output Current (Continuous)		-20		20	mA	Note 2	2
Operating Temperature Range		-40		85	°C		2
Specified Temperature Range		-40		85	°C	Note 3	2
Junction Temperature	TJMAX			150	°C		2
Storage Temperature Range		-65		150	°C		2
Lead Temperature				300	°C	Soldering, 10 sec.	2
Thermal Resistance, Junction to Ambient (S8 package)	θJA		190		°C/W	S8 package (8-lead plastic SO)	2

CAD (KiCad official)

Symbol: LT1671IS8#PBF
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: lt1671is8-pbf-etched.step / lt1671is8-pbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt1671is8-pbf.step / lt1671is8-pbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Analog Devices datasheet (12 pp, sha256 4e3bb61bd867e99c, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

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LT1671IS8#PBF

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