component
OPA2145IDGKR
Public Made by Adomby adom
Texas Instruments FET InputAmplifiers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownOPA2145IDGKR
Texas Instruments · FET InputAmplifiers · MSOP-8
OPA2145IDGKR from Texas Instruments, 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 channel A. |
| 2 | -IN A | input | Inverting input of channel A. |
| 3 | +IN A | input | Noninverting input of channel A. |
| 4 | V- | power_in | Negative (lowest) supply; supply range is 4.5 V to 36 V single or ±2.25 V to ±18 V dual. |
| 5 | +IN B | input | Noninverting input of channel B. |
| 6 | -IN B | input | Inverting input of channel B. |
| 7 | OUT B | output | Output of channel B. |
| 8 | V+ | power_in | Positive supply; supply range is 4.5 V to 36 V single or ±2.25 V to ±18 V dual. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-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 |
|---|---|---|---|---|---|---|---|
| Supply voltage, dual supply | VS | 20 | V | Dual supply (±20) | 4 | ||
| Supply voltage, single supply | VS | 40 | V | Single supply | 4 | ||
| Signal input pin voltage | -0.5 | 0.5 | V | (V-), 0.5 to (V+) + 0.5; min/max relative to rails | 4 | ||
| Signal input pin current | -10 | 10 | mA | 4 | |||
| Operating temperature | TA | -55 | 150 | °C | 4 | ||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | TSTG | -65 | 150 | °C | 4 | ||
| ESD HBM | V(ESD) | -2000 | 2000 | V | Human-body model per ANSI/ESDA/JEDEC JS-001 | 4 | |
| ESD CDM | V(ESD) | -1000 | 1000 | V | Charged-device model per JESD22-C101 | 4 | |
| Supply voltage, dual supply | VS | -2.25 | 15 | 18 | V | Dual supply (±2.25 / ±15 / ±18) | 4 |
| Supply voltage, single supply | VS | 4.5 | 30 | 36 | V | Single supply | 4 |
| Ambient temperature | TA | -40 | 25 | 125 | °C | 4 | |
| Junction-to-ambient thermal resistance | RθJA | 163.9 | °C/W | OPA2145 DGK (VSSOP) 8 pins | 5 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 53.4 | °C/W | OPA2145 DGK (VSSOP) | 5 | ||
| Junction-to-board thermal resistance | RθJB | 85 | °C/W | OPA2145 DGK (VSSOP) | 5 | ||
| Junction-to-top characterization parameter | ΨJT | 5.9 | °C/W | OPA2145 DGK (VSSOP) | 5 | ||
| Junction-to-board characterization parameter | ΨJB | 83.7 | °C/W | OPA2145 DGK (VSSOP) | 5 | ||
| Offset voltage, RTI | VOS | -150 | 40 | 150 | μV | VS = ±18 V | 6 |
| Offset voltage, RTI | VOS | -280 | 280 | μV | VS = ±18 V, TA = 0°C to +85°C | 6 | |
| Offset voltage, RTI | VOS | -350 | 350 | μV | VS = ±18 V, TA = -40°C to +125°C | 6 | |
| Offset voltage drift | dVOS/dT | -0.8 | 0.15 | 0.8 | μV/°C | VS = ±18 V, TA = 0°C to +85°C, OPA2145 | 6 |
| Offset voltage drift | dVOS/dT | -1 | 0.2 | 1 | μV/°C | VS = ±18 V, TA = -40°C to +125°C, OPA2145 | 6 |
| Power-supply rejection ratio | PSRR | -0.3 | 0.06 | 0.3 | μV/V | VS = ±2.25 V to ±18 V, OPA145ID and OPA2145 packages | 6 |
| Power-supply rejection ratio | PSRR | -0.65 | 0.65 | μV/V | VS = ±2.25 V to ±18 V, TA = -40°C to +125°C, OPA2145 | 6 | |
| Input bias current | IB | -10 | 2 | 10 | pA | 6 | |
| Input bias current | IB | -600 | 600 | pA | TA = 0°C to +85°C | 6 | |
| Input bias current | IB | -10 | 10 | nA | TA = -40°C to +125°C | 6 | |
| Input offset current | IOS | -10 | 2 | 10 | pA | 6 | |
| Input offset current | IOS | -600 | 600 | pA | TA = 0°C to +85°C | 6 | |
| Input offset current | IOS | -10 | 10 | nA | TA = -40°C to +125°C | 6 | |
| Input voltage noise | 320 | nVPP | f = 0.1 Hz to 10 Hz | 6 | |||
| Input voltage noise density | en | 7 | nV/√Hz | f = 1 kHz | 6 | ||
| Input current noise density | In | 0.8 | fA/√Hz | f = 1 kHz | 6 | ||
| Common-mode voltage range | VCM | -0.1 | -3.5 | V | TA = -40°C to +125°C; (V-) -0.1 to (V+) -3.5 (relative to rails) | 6 | |
| Common-mode rejection ratio | CMRR | 126 | 140 | dB | VS = ±18 V, VCM = (V-) -0.1 V to (V+), 3.5 V | 6 | |
| Common-mode rejection ratio | CMRR | 118 | dB | VS = ±18 V, VCM = (V-) -0.1 V to (V+), 3.5 V, TA = -40°C to +125°C | 6 | ||
| Open-loop voltage gain | AOL | 114 | 123 | dB | VO = (V-) + 0.35 V to (V+), 0.35 V, RL = 10 kΩ, OPA2145 | 7 | |
| Open-loop voltage gain | AOL | 104 | 110 | dB | VO = (V-) + 0.35 V to (V+), 0.35 V, RL = 2 kΩ, OPA2145 | 7 | |
| Open-loop voltage gain | AOL | 104 | dB | VO = (V-) + 0.35 V to (V+), 0.35 V, RL = 2 kΩ, TA = -40°C to +125°C | 7 | ||
| Voltage output swing from rail | VO | 80 | mV | RL = 10 kΩ, OPA2145 | 7 | ||
| Voltage output swing from rail | VO | 90 | mV | RL = 10 kΩ, TA = -40°C to +125°C | 7 | ||
| Voltage output swing from rail | VO | 230 | mV | RL = 2 kΩ, OPA2145 | 7 | ||
| Voltage output swing from rail | VO | 350 | mV | RL = 2 kΩ, TA = -40°C to +125°C, OPA145IDGK and OPA145IDBV packages, OPA2145 | 7 | ||
| Gain bandwidth product | BW | 5.5 | MHz | 7 | |||
| Slew rate | SR | 20 | V/μs | 7 | |||
| Short-circuit current | ISC | 20 | mA | ±20 | 7 | ||
| Quiescent current (per amplifier) | IQ | 445 | 475 | µA | IO = 0 mA | 7 | |
| Quiescent current (per amplifier) | IQ | 590 | µA | TA = 0°C to +85°C | 7 | ||
| Quiescent current (per amplifier) | IQ | 655 | µA | TA = -40°C to +125°C | 7 |
CAD (KiCad official)
- Symbol:
OPA2145IDGKR - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
opa2145idgkr-etched.step/opa2145idgkr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa2145idgkr.step/opa2145idgkr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
4646008fc3b6aa74, retrieved 2026-10-23, tier: manufacturer) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).