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LT1994CMS8#TRPBF
Public Made by Adomby adom
Analog Devices Differential OpAmps, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LT1994CMS8#TRPBF
Analog Devices · Differential OpAmps · MSOP-8
LT1994CMS8#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 | IN- | input | Inverting input of the amplifier; keep stray capacitance to a minimum with short PCB connections (pin function text lists IN+ as Pin 1 and IN- as Pin 8, but the MS8 pin diagram shows IN- at pin 1). |
| 2 | VOCM | input | Output common mode reference voltage with approximately 40k Thevenin resistance to a mid-supply default; sets the output common mode level and should be bypassed with at least 0.1µF unless tied to a low impedance ground plane. |
| 3 | V+ | power_in | Positive power supply pin, bypassed to V- with 1µF and 0.1µF ceramic capacitors; total supply (V+ to V-) is up to 12.6V. |
| 4 | OUT+ | output | Positive output pin, drives approximately 100Ω to ground with short-circuit current limit up to ±85mA and is designed for 25pF load capacitance. |
| 5 | OUT- | output | Negative output pin, drives approximately 100Ω to ground with short-circuit current limit up to ±85mA and is designed for 25pF load capacitance. |
| 6 | V- | power_in | Negative power supply pin, tied directly to a low impedance ground plane in single-supply applications. |
| 7 | SHDN | input | Shutdown input: floating or tied to V+ is normal operation, and pulled a minimum of 2.1V below V+ enters low power shutdown (internal 120k pull-up). |
| 8 | IN+ | input | Noninverting input of the amplifier; keep stray capacitance to a minimum with short PCB connections (pin function text lists IN- as Pin 8 and IN+ as Pin 1, but the MS8 pin diagram shows IN+ at pin 8). |
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 |
|---|---|---|---|---|---|---|---|
| Differential Offset Voltage | VOSDIFF | -2 | 2 | mV | VS = 2.375V, VICM = VS/4 | 3 | |
| Differential Offset Voltage | VOSDIFF | -3 | 3 | mV | VS = ±5V | 3 | |
| Input Bias Current | IB | -45 | -18 | -3 | μA | VS = 2.375V, VICM = VS/4 | 3 |
| Input Offset Current | IOS | -2 | 0.2 | 2 | μA | VS = 2.375V, VICM = VS/4 | 3 |
| Input Offset Current | IOS | -3 | 0.2 | 3 | μA | VS = 5V | 3 |
| Input Offset Current | IOS | -4 | 0.2 | 4 | μA | VS = ±5V | 3 |
| Input Signal Common Mode Range | VICMR | 0 | 1.75 | V | VS = 3V | 3 | |
| Input Signal Common Mode Range | VICMR | -5 | 3.75 | V | VS = ±5V | 3 | |
| Input Common Mode Rejection Ratio | CMRRI | 55 | 85 | dB | VS = 3V, ΔVICM = 0.75V | 3 | |
| Output Common Mode Rejection Ratio | CMRRIO | 65 | 85 | dB | VS = 5V, ΔVOCM = 2V | 3 | |
| Differential Power Supply Rejection | PSRR | 69 | 105 | dB | VS = 3V to ±5V | 3 | |
| Output Common Mode Power Supply Rejection | PSRRCM | 45 | 70 | dB | VS = 3V to ±5V | 3 | |
| Common Mode Gain Error | 100 • (GCM, 1) | -1 | -0.15 | 1 | % | VS = ±2.5V | 3 |
| Common Mode Offset Voltage | VOSCM | -25 | 2.5 | 25 | mV | VS = 2.375V, VICM = VS/4 | 3 |
| Common Mode Offset Voltage | VOSCM | -30 | 2.5 | 30 | mV | VS = 5V | 3 |
| Common Mode Offset Voltage | VOSCM | -40 | 2.5 | 40 | mV | VS = ±5V | 3 |
| Input Resistance, VOCM Pin | RINVOCM | 30 | 40 | 60 | kΩ | 4 | |
| Voltage at the VOCM Pin | VMID | 2.45 | 2.5 | 2.55 | V | VS = 5V | 4 |
| Output Voltage, High | VOUT | 70 | 140 | mV | VS = 3V, No Load | 4 | |
| Output Voltage, High | VOUT | 90 | 175 | mV | VS = 3V, RL = 800Ω | 4 | |
| Output Voltage, High | VOUT | 200 | 400 | mV | VS = 3V, RL = 100Ω | 4 | |
| Output Voltage, High | VOUT | 150 | 325 | mV | VS = ±5V, No Load | 4 | |
| Output Voltage, High | VOUT | 200 | 450 | mV | VS = ±5V, RL = 800Ω | 4 | |
| Output Voltage, High | VOUT | 900 | 2400 | mV | VS = ±5V, RL = 100Ω | 4 | |
| Output Voltage, Low | VOUT | 30 | 70 | mV | VS = 3V, No Load | 4 | |
| Output Voltage, Low | VOUT | 50 | 90 | mV | VS = 3V, RL = 800Ω | 4 | |
| Output Voltage, Low | VOUT | 125 | 250 | mV | VS = 3V, RL = 100Ω | 4 | |
| Output Voltage, Low | VOUT | 80 | 180 | mV | VS = ±5V, No Load | 4 | |
| Output Voltage, Low | VOUT | 900 | 2400 | mV | VS = ±5V, RL = 100Ω | 4 | |
| Output Short-Circuit Current | ISC | 25 | 35 | mA | VS = 2.375V, RL = 10Ω | 4 | |
| Output Short-Circuit Current | ISC | 30 | 40 | mA | VS = 3V, RL = 10Ω | 4 | |
| Output Short-Circuit Current | ISC | 40 | 65 | mA | VS = 5V, RL = 10Ω | 4 | |
| Output Short-Circuit Current | ISC | 45 | 85 | mA | VS = ±5V, VCM = 0V, RL = 10Ω | 4 | |
| Slew Rate | SR | 50 | 65 | 85 | V/μS | VS = 5V, ΔVOUT+ = -ΔVOUT- = 1V | 4 |
| Gain-Bandwidth Product | GBW | 58 | 70 | MHz | fTEST = 1MHz, VS = 3V, TA = 25°C | 4 | |
| Supply Voltage Range | VS | 2.375 | 12.6 | V | 4 | ||
| Supply Current | IS | 13.3 | 18.5 | mA | VS = 3V | 4 | |
| Supply Current | IS | 13.9 | 19.5 | mA | VS = 5V | 4 | |
| Supply Current | IS | 14.8 | 20.5 | mA | VS = ±5V | 4 | |
| Supply Current in Shutdown | ISHDN | 0.225 | 0.8 | mA | VS = 3V | 4 | |
| Supply Current in Shutdown | ISHDN | 0.375 | 1.75 | mA | VS = 5V | 4 | |
| Supply Current in Shutdown | ISHDN | 0.7 | 2.5 | mA | VS = ±5V | 4 | |
| SHDN Pull-Up Resistor | RSHDN | 40 | 55 | 75 | kΩ | VS = 2.375V to ±5V | 5 |
| Junction Temperature | TJMAX | 150 | °C | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Specified Temperature Range LT1994C | 0 | 70 | °C | 2 | |||
| Thermal Resistance Junction to Ambient | θJA | 140 | °C/W | MS8 package | 2 |
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 | copper | connect more copper to the V- pin to reduce the thermal | 15 |
CAD (KiCad official)
- Symbol:
LT1994CMS8#TRPBF - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
lt1994cms8-trpbf-etched.step/lt1994cms8-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1994cms8-trpbf.step/lt1994cms8-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (20 pp, sha256
2bd3f857593f0ff0, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).