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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md1322.step/md1322.glbare 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, primaryclaude-haiku-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).
# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586197219402002432) (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](docs/md1322-datasheet.pdf)