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MD1322

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Shanghai Mingda Microelectronics Operational Amplifier, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MD1322

Shanghai Mingda Microelectronics · Operational Amplifier · SOIC-8

MD1322 from Shanghai Mingda Microelectronics, in a SOIC-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 VOUTA output Output of amplifier A; rail-to-rail output with about 4.98V to 4.995V high and 5mV to 25mV low at RL=100kΩ (VDD=5V), and output current rated at 40mA.
2 VINA- input Inverting input of amplifier A; the common-mode input range is -0.1V to +5.6V when VDD-VSS=5.5V, and the absolute maximum common-mode input is VSS-0.3V to VDD+0.3V.
3 VINA+ input Non-inverting input of amplifier A; the common-mode input range is -0.1V to +5.6V when VDD-VSS=5.5V, and the absolute maximum common-mode input is VSS-0.3V to VDD+0.3V.
4 VSS power_in Negative supply rail, used as the ground reference (VSS = GND) for the device.
5 VINB+ input Non-inverting input of amplifier B; the common-mode input range is -0.1V to +5.6V when VDD-VSS=5.5V, and the absolute maximum common-mode input is VSS-0.3V to VDD+0.3V.
6 VINB- input Inverting input of amplifier B; the common-mode input range is -0.1V to +5.6V when VDD-VSS=5.5V, and the absolute maximum common-mode input is VSS-0.3V to VDD+0.3V.
7 VOUTB output Output of amplifier B; rail-to-rail output with about 4.98V to 4.995V high and 5mV to 25mV low at RL=100kΩ (VDD=5V), and output current rated at 40mA.
8 VDD power_in Positive supply; operating range is 2.1V to 5.5V, and the absolute maximum supply voltage (VDD to VSS) is 6V.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOIC-8
Category Amplifiers/Comparators
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, VDD to VSS VDD to VSS 6 V 2
Storage Temperature Range -65 150 ℃ 2
Junction Temperature 150 ℃ 2
Operating Temperature Range -40 85 ℃ 2
ESD HBM Human Body Model HBM 4 kV Human Body Model; printed as Minimum Level 2
ESD MM Machine Model MM 300 V Machine Model; printed as Minimum Level 2
Input Offset Voltage VOS 0.8 5 mV VCM = VDD/2 3
Input Offset Voltage (full temperature range) VOS 6.6 mV VCM = VDD/2; ● full operating temperature range 3
Input Common Mode Voltage Range VCM -0.1 5.6 V VDD = 5.5V 3
Output Voltage Swing High (RL = 100kΩ) VOH 4.98 4.995 V RL = 100kΩ 3
Output Voltage Swing Low (RL = 100kΩ) VOL 5 25 mV RL = 100kΩ 3
Output Voltage Swing High (RL = 10kΩ) VOH 4.97 4.994 V RL = 10kΩ 3
Output Voltage Swing Low (RL = 10kΩ) VOL 6 35 mV RL = 10kΩ 3
Operating Voltage Range 2.1 V TA = 25℃ (non-● row) 3
Operating Voltage Range (full temperature range) 2.5 5.5 V ● full operating temperature range 3
Quiescent Current/Amplifier (full temperature range) IQ 35 80 μA ● full operating temperature range 3
Harmonic Distortion HD2 HD2 80 dBc f = 10kHz, G = +1, RL=100k, VOUT=2VPP 3
Harmonic Distortion HD3 HD3 80 dBc f = 10kHz, G = +1, RL=100k, VOUT=2VPP 3

CAD (KiCad official)

  • Symbol: MD1322
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: md1322-etched.step / md1322-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md1322.step / md1322.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (11 pp, sha256 4ea34861aaecf612, retrieved 2026-10-19, tier: lcsc)
  • 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