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Contents

README

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OPA1678IDGKT

Texas Instruments · Precision OpAmps · VSSOP-8

OPA1678IDGKT from Texas Instruments, in a VSSOP-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, channel A.
2 -IN A input Inverting input, channel A.
3 +IN A input Noninverting input, channel A.
4 V- power_in Negative (lowest) power supply; supply range is 4.5 V (±2.25 V) to 36 V (±18 V) total.
5 +IN B input Noninverting input, channel B.
6 -IN B input Inverting input, channel B.
7 OUT B output Output, channel B.
8 V+ power_in Positive (highest) power supply; supply range is 4.5 V (±2.25 V) to 36 V (±18 V) total.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-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
Supply voltage (abs max) VS 40 V VS = (V+), (V-) 5
Input voltage -0.5 0.5 V (V-), 0.5 to (V+) + 0.5 5
Input current (all pins except power-supply pins) -10 10 mA 5
Operating temperature (abs max) TA -55 125 °C 5
Junction temperature TJ 200 °C 5
Storage temperature Tstg -65 150 °C 5
ESD HBM V(ESD) -2000 2000 V ANSI/ESDA/JEDEC JS-001 5
ESD CDM V(ESD) -1000 1000 V JESD22-C101 5
ESD MM V(ESD) -200 200 V Machine model 5
Supply voltage VS 4.5 36 V ±2.25 V to ±18 V 5
Operating temperature TA -40 85 °C 5
Junction-to-ambient thermal resistance RθJA 219 °C/W DGK (VSSOP) 8 pins 6
Junction-to-case (top) thermal resistance RθJC(top) 79 °C/W DGK (VSSOP) 8 pins 6
Junction-to-board thermal resistance RθJB 104 °C/W DGK (VSSOP) 8 pins 6
Junction-to-top characterization parameter ψJT 15 °C/W DGK (VSSOP) 8 pins 6
Junction-to-board characterization parameter ψJB 102 °C/W DGK (VSSOP) 8 pins 6
Input offset voltage VOS 0.5 2 mV VS = ±2.25 V to ±18 V 7
Power-supply rejection ratio PSRR 3 8 µV/V VS = ±2.25 V to ±18 V 7
Common-mode voltage range VCM 0.5 -2 V (V-) + 0.5 to (V+), 2 7
Common-mode rejection ratio CMRR 100 110 dB 7
Open-loop voltage gain AOL 106 114 dB (V-) + 0.8 V ≤ VO ≤ (V+), 0.8 V, RL = 2 kΩ 7
Voltage output swing from rails VOUT 0.8 -0.8 V RL = 2 kΩ; (V-) + 0.8 to (V+), 0.8 7
Quiescent current (per channel) IQ 2 2.5 mA IOUT = 0 A 8
Quiescent current (per channel), over temperature IQ 2.8 mA IOUT = 0 A, TA = -40°C to +85°C 8
Specified voltage VS -18 18 V ±2.25 to ±18 8
Specified temperature range -40 85 °C 8
Operating temperature range -55 125 °C 8
Total harmonic distortion + noise THD+N -120 dB G = 1, RL = 600 Ω, f = 1 kHz, VO = 3 VRMS 7
Gain-bandwidth product GBW 16 MHz G = 1 7
Slew rate SR 9 V/µs G = -1 7
Full power bandwidth 1.4 MHz VO = 1 VP 7
Overload recovery time 1 µs G = -10 7
Channel separation -130 dB f = 1 kHz 7
Input voltage noise en 1.74 µVPP f = 0.1 Hz to 10 Hz 7
Input voltage noise density en 4.5 nV/√Hz f = 1 kHz 7
Input current noise density In 3 fA/√Hz f = 1 kHz 7
Input offset voltage drift 2 µV/°C VS = ±2.25 V to ±18 V, TA = -40°C to +85°C 7
Input bias current IB 10 pA VCM = 0 V 7
Input offset current IOS 10 pA VCM = 0 V 7
Short-circuit current ISC -50 50 mA One channel at a time 7
Capacitive load drive CLOAD 100 pF 7

CAD (KiCad official)

  • Symbol: OPA1678IDGKT
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: opa1678idgkt-etched.step / opa1678idgkt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa1678idgkt.step / opa1678idgkt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (41 pp, sha256 19338a4201fc62a8, 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, primary claude-sonnet-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