LT1638CMS8#TRPBF from Analog Devices, in a MSOP-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	OUT A	output	Output of amplifier A, which swings within 20mV of the positive rail and within 3mV of the negative rail with no load and sources or sinks over 40mA on ±15V supplies.
2	-IN A	input	Inverting input of amplifier A, which is protected by an internal 1kΩ series resistor and a diode to V- for excursions up to 2V below V-, and can be taken up to 44V above V- regardless of V+.
3	+IN A	input	Non-inverting input of amplifier A, whose common-mode range includes both supplies and which can operate with its input above V+, with inputs rated to 44V differential and common mode.
4	V-	power_in	Negative supply pin; the device operates from a total supply of 2.5V to 44V on single or split supplies and is reverse battery protected to 18V.
5	+IN B	input	Non-inverting input of amplifier B, whose common-mode range includes both supplies and which can operate with its input above V+, with inputs rated to 44V differential and common mode.
6	-IN B	input	Inverting input of amplifier B, which is protected by an internal 1kΩ series resistor and a diode to V- for excursions up to 2V below V-, and can be taken up to 44V above V- regardless of V+.
7	OUT B	output	Output of amplifier B, which swings within 20mV of the positive rail and within 3mV of the negative rail with no load and sources or sinks over 40mA on ±15V supplies.
8	V+	power_in	Positive supply pin; the positive supply should be bypassed with a small capacitor (typically 0.1µF) within an inch of the pin, and the device is rated for a total supply of 2.5V to 44V.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	MSOP-8
Category	Amplifiers
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, LT1638 MS8 package	VOS		350	900	μV	VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply; TA = 25°C	4
Input Offset Voltage, LT1638 MS8 package	VOS			1150	μV	VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply; 0°C ≤ TA ≤ 70°C	4
Input Offset Voltage, LT1638 MS8 package	VOS			1450	μV	VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply; -40°C ≤ TA ≤ 85°C	4
Input Offset Voltage, LT1638 MS8 package	VOS		400	1050	μV	VS = ±15V, VCM = 0V, VOUT = 0V; TA = 25°C	5
Input Offset Voltage, LT1638 MS8 package	VOS			1250	μV	VS = ±15V, VCM = 0V, VOUT = 0V; 0°C ≤ TA ≤ 70°C	5
Input Offset Voltage, LT1638 MS8 package	VOS			1550	μV	VS = ±15V, VCM = 0V, VOUT = 0V; -40°C ≤ TA ≤ 85°C	5
Input Offset Voltage Drift, LT1638MS8			2.5	7	μV/°C		4
Input Offset Current	IOS			16	nA	VCM = 44V (Note 5)	4
Input Offset Current	IOS			2.5	μA	VCM = 44V (Note 5)	4
Input Offset Current	IOS		1	6	nA		5
Input Bias Current	IB		20	50	nA		5
Input Voltage Range		0		44	V	VS = 3V, 0V; VS = 5V, 0V	4
Input Voltage Range		-15		29	V	VS = ±15V, VCM = 0V, VOUT = 0V	5
Common Mode Rejection Ratio		88	98		dB	VCM = 0V to VCC, 1V	4
Common Mode Rejection Ratio		80	88		dB	VCM = 0V to 44V (Note 8)	4
Common Mode Rejection Ratio		80	88		dB	VCM = -15V to 29V	5
Large-Signal Voltage Gain, 3V	AVOL	200			V/mV	VS = 3V, VO = 500mV to 2.5V, RL = 10k; TA = 25°C	4
Large-Signal Voltage Gain, 3V	AVOL	133			V/mV	VS = 3V, VO = 500mV to 2.5V, RL = 10k; 0°C ≤ TA ≤ 70°C	4
Large-Signal Voltage Gain, 3V	AVOL	100			V/mV	VS = 3V, VO = 500mV to 2.5V, RL = 10k; -40°C ≤ TA ≤ 85°C	4
Large-Signal Voltage Gain, 5V	AVOL	400			V/mV	VS = 5V, VO = 500mV to 4.5V, RL = 10k; TA = 25°C	4
Large-Signal Voltage Gain, 5V	AVOL	250			V/mV	VS = 5V, VO = 500mV to 4.5V, RL = 10k; 0°C ≤ TA ≤ 70°C	4
Large-Signal Voltage Gain, 5V	AVOL	200			V/mV	VS = 5V, VO = 500mV to 4.5V, RL = 10k; -40°C ≤ TA ≤ 85°C	4
Large-Signal Voltage Gain, ±15V	AVOL	200			V/mV	VO = ±14V, RL = 10k; TA = 25°C	5
Output Voltage Swing Low, 3V no load	VOL		3	8	mV	VS = 3V, No Load	4
Output Voltage Swing Low, 3V ISINK 5mA	VOL		250	450	mV	VS = 3V, ISINK = 5mA	4
Output Voltage Swing Low, 5V no load	VOL		3	8	mV	VS = 5V, No Load	4
Output Voltage Swing Low, 5V ISINK 10mA	VOL		500	700	mV	VS = 5V, ISINK = 10mA	4
Output Voltage Swing High, 3V no load	VOH	2.94	2.98		V	VS = 3V, No Load	4
Output Voltage Swing High, 3V ISOURCE 5mA	VOH	2.25	2.4		V	VS = 3V, ISOURCE = 5mA	4
Output Voltage Swing High, 5V no load	VOH	4.94	4.98		V	VS = 5V, No Load	4
Output Voltage Swing High, 5V ISOURCE 10mA	VOH	3.8	4		V	VS = 5V, ISOURCE = 10mA	4
Short-Circuit Current, 3V short to GND	ISC	10	15		mA	VS = 3V, Short to GND	4
Short-Circuit Current, 3V short to VCC	ISC	15	25		mA	VS = 3V, Short to VCC	4
Short-Circuit Current, 5V short to GND	ISC	15	20		mA	VS = 5V, Short to GND	4
Short-Circuit Current, 5V short to VCC	ISC	15	25		mA	VS = 5V, Short to VCC	4
Short-Circuit Current, ±15V short to GND	ISC	25			mA	Short to GND; TA = 25°C	6
Power Supply Rejection Ratio, 3V	PSRR	90	100		dB	VS = 3V to 12.5V, VCM = VO = 1V	5
Power Supply Rejection Ratio, ±15V	PSRR	90	100		dB	VS = ±1.5V to ±22V	6
Reverse Supply Voltage		18			V	IS = -100μA per Amplifier	5
Minimum Operating Supply Voltage				2.7	V		5
Supply Current per Amplifier, 3V	IS		170	230	μA	(Note 6)	5
Supply Current per Amplifier, ±15V	IS		205	280	μA	VS = ±15V, VCM = 0V, VOUT = 0V	6
Gain Bandwidth Product, 3V	GBW	650			kHz	f = 5kHz; TA = 25°C	5
Gain Bandwidth Product, 3V	GBW	550			kHz	f = 5kHz; 0°C ≤ TA ≤ 70°C	5
Gain Bandwidth Product, ±15V	GBW	750			kHz	f = 5kHz; TA = 25°C	6
Gain Bandwidth Product, ±15V	GBW	650			kHz	f = 5kHz; 0°C ≤ TA ≤ 70°C	6
Slew Rate, 3V	SR	0.21			V/μs	AV = -1, RL = ∞; TA = 25°C	5
Slew Rate, 3V	SR	0.185			V/μs	AV = -1, RL = ∞; 0°C ≤ TA ≤ 70°C	5
Slew Rate, ±15V	SR	0.225			V/μs	AV = -1, RL = ∞, VO = ±10V; TA = 25°C	6
Slew Rate, ±15V	SR	0.2			V/μs	AV = -1, RL = ∞, VO = ±10V; 0°C ≤ TA ≤ 70°C	6
Output Voltage Swing, no load, ±15V	VO	14.9	14.95		V	No Load	5
Output Voltage Swing, ±15V	VO	13.7	14		V	IOUT = ±10mA	5
Input Current		-25		25	mA		2
Junction Temperature				150	°C		2
Storage Temperature Range		-65		150	°C		2
Lead Temperature (Soldering, 10 sec)				300	°C	Soldering, 10 sec	2
Operating Temperature Range, LT1638C		-40		85	°C	LT1638C/LT1639C	2
Thermal Resistance Junction-to-Ambient, MS8	θJA		273		°C/W	MS8 package; TJMAX = 150°C	2

CAD (KiCad official)

Symbol: LT1638CMS8#TRPBF
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)
3D model files: lt1638cms8-trpbf-etched.step / lt1638cms8-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt1638cms8-trpbf.step / lt1638cms8-trpbf.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (18 pp, sha256 a1ec4ee3eafecefc, 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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LT1638CMS8#TRPBF

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