LM2903QTH-13 from Diodes Incorporated, in a TSSOP-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	1OUT	output	Channel 1 output; it is the uncommitted collector of a grounded-emitter NPN, so it needs an external pullup to a supply within the permitted range (page 9).
2	1IN-	input	Channel 1 inverting input; input voltage must not go below -0.3V at +25°C, and input current is limited to 50mA when VIN < -0.3V.
3	1IN+	input	Channel 1 non-inverting input; the common-mode input range includes ground, with the upper limit at VCC - 1.5V at +25°C.
4	GND	power_in	Ground reference pin for the device (GND = 0V in the electrical characteristics conditions).
5	2IN+	input	Channel 2 non-inverting input; the common-mode input range includes ground, with the upper limit at VCC - 1.5V at +25°C.
6	2IN-	input	Channel 2 inverting input; input voltage must not go below -0.3V at +25°C, and input current is limited to 50mA when VIN < -0.3V.
7	2OUT	output	Channel 2 output; it is the uncommitted collector of a grounded-emitter NPN, so it needs an external pullup to a supply within the permitted range (page 9).
8	VCC	power_in	Chip supply voltage: single supply 2V to 36V or dual supplies ±1V to ±18V per the recommended operating conditions.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	TSSOP-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, Non-A device, TA = +25°C	VIO		2	7	mV	VIC = VCMR Min, VO = 1.4V, VCC = 5V to 30V (Note 10)	5
Input Offset Voltage, Non-A device, Full Range	VIO			15	mV	Full Range; VIC = VCMR Min, VO = 1.4V, VCC = 5V to 30V (Note 10)	5
Input Bias Current, TA = +25°C	IB		25	250	nA	IIN+ or IIN− with OUT in Linear Range, VCM = 0V (Note 11)	5
Input Bias Current, Full Range	IB			500	nA	Full Range; IIN+ or IIN− with OUT in Linear Range, VCM = 0V (Note 11)	5
Input Offset Current, TA = +25°C	IIO		5	50	nA	IIN+ - IIN−, VCM = 0V	5
Input Offset Current, Full Range	IIO			200	nA	Full Range; IIN+ - IIN−, VCM = 0V	5
Input Common-Mode Voltage Range, TA = +25°C (max printed as VCC −1.5 V)	VCMR	0			V	VCC = 30V (Note 12), TA = +25°C	5
Input Common-Mode Voltage Range, Full Range (max printed as VCC −2 V)	VCMR	0			V	VCC = 30V (Note 12), Full Range	5
Supply Current, VCC = 30V, TA = +25°C	ICC		0.7	1.7	mA	RL = ∞ on Both Channels, VCC = 30V, TA = +25°C	5
Supply Current, VCC = 30V, Full Range	ICC			3	mA	RL = ∞ on Both Channels, VCC = 30V, Full Range	5
Supply Current, VCC = 5V, TA = +25°C	ICC		0.6	1	mA	RL = ∞ on Both Channels, VCC = 5V, TA = +25°C	5
Supply Current, VCC = 5V, Full Range	ICC			2	mA	RL = ∞ on Both Channels, VCC = 5V, Full Range	5
Voltage Gain	AV	50	200		V/mV	VCC = 15V, VOUT = 1V to 11V, RL ≥ 15kΩ, TA = +25°C	5
Output Sink Current	IO(SINK)	6	16		mA	VIN− = 1V, VIN+ = 0, VO ≤ 1.5V, TA = +25°C	5
Saturation Voltage, TA = +25°C	VSAT		200	400	mV	VIN− = 1V, VIN+ = 0, ISINK ≤ 4mA, TA = +25°C	5
Saturation Voltage, Full Range	VSAT			700	mV	VIN− = 1V, VIN+ = 0, ISINK ≤ 4mA, Full Range	5
Output Leakage Current, Full Range	IO(LEAK)			1	µA	VIN− = 0V, VIN+ = 1, VO = 30V, Full Range	5
Differential Input Voltage	VID			36	V	All VIN ≥ 0V (or V- if used) (Note 14), Full Range	5
Supply Voltage, Single Supply		2		36	V	Over Operating Free-Air Temperature Range	3
Supply Voltage, Dual Supply (printed ±1 V to ±18 V, magnitude)		1		18	V	Over Operating Free-Air Temperature Range	3
Ambient Temperature Range	TA	-40		125	°C	Over Operating Free-Air Temperature Range	3
Junction Temperature Range		-40		125	°C	Over Operating Free-Air Temperature Range	3
Supply Voltage	VCC			36	V		3
Differential Input Voltage	VID			36	V		3
Input Voltage	VIN	-0.3		36	V		3
Input Current	IIN			50	mA	VIN < -0.3V	3
Output Voltage	VO			36	V		3
Output Current	IO			20	mA		3
Operating Temperature Range	TA	-40		125	°C		3
Operating Junction Temperature	TJ			150	°C		3
Storage Temperature Range	TST	-65		150	°C		3
Lead Temperature (Soldering)	TLEAD			260	°C	Soldering, 10 seconds	3
Package Thermal Impedance, TSSOP-8	θJA			175	°C/W	TSSOP-8 package (Note 6)	3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part	Material	Colour / plating	Datasheet says	Page
contacts		tin	• Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 • Weight:	19

CAD (KiCad official)

Symbol: LM2903QTH-13
Footprint: Package_SO:TSSOP-8_4.4x3mm_P0.65mm
3D model: TSSOP-8 (KiCad packages3D, STEP)
3D model files: lm2903qth-13-etched.step / lm2903qth-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2903qth-13.step / lm2903qth-13.glb are the bare package body.

Provenance

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

Datasheet: Diodes Incorporated datasheet (20 pp, sha256 e45c666b30bd3a44, retrieved 2026-11-05, 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).

Datasheet PDF

LM2903QTH-13

Verified LM2903QTH-13

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3D Model

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Schematic Symbol

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