component
MS2351M
Public Made by Adomby adom
Hangzhou Ruimeng Tech Operational Amplifier, 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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| ms2351m-etched.step | 17h ago |
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MS2351M
Hangzhou Ruimeng Tech · Operational Amplifier · MSOP-8
MS2351M from Hangzhou Ruimeng Tech, 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 | RFIN | input | RF signal input with internal AC coupling, 95 kΩ DC resistance to ground and 3 kΩ in-band input resistance at 0.1 GHz; a 52.3 Ω shunt resistor to ground gives an equivalent 50 Ω input. |
| 2 | ENBL | input | Enable pin: tie to VPOS for normal operation and to ground to shut the chip down, with high-level input of at least 1.4 V and low-level of at most 0.1 V over -40℃ to 85℃. |
| 3 | VSET | input | Setpoint input with a voltage range of 0.15 V to 1.2 V; connect it to V_UP for measurement mode, otherwise drive it from an external control voltage for control mode. |
| 4 | FLTR | output | Filter pin where an external capacitor connected between FLTR and V_UP lengthens the output response time. |
| 5 | COMM | power_in | Reference ground for the device. |
| 6 | V_UP | output | Logarithmic RSSI output proportional to the input signal amplitude, with a range of 0.015 V to 1.23 V at RL≥10 kΩ. |
| 7 | V_DN | output | Inverted output of V_UP following V_DN = 2.25 - 2×V_UP, with a maximum output of 2.2 V to 2.3 V at VPOS≥3.3 V. |
| 8 | VPOS | power_in | Supply pin with a specified range of 2.7 V to 5.5 V, to be decoupled with a 0.1 µF low-inductance ceramic capacitor placed next to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hangzhou Ruimeng Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage | VPOS | 5.5 | V | 4 | |||
| Input voltage rms | 1.6 | V rms | 4 | ||||
| Equivalent power | 17 | dBm | 4 | ||||
| Maximum power dissipation | PD | 200 | mW | 4 | |||
| Operating ambient temperature | Topr | -40 | 85 | ℃ | 4 | ||
| Storage temperature | Tstg | -55 | 150 | ℃ | 4 | ||
| Die attach soldering temperature | TTOR | 260 | ℃ | 10 s | 4 | ||
| Overall frequency range | 0.1 | 2.5 | GHz | 满足所有规范 | 4 | ||
| Input voltage | 1.25 | 224 | mV rms | 内部 AC 耦合 | 4 | ||
| Equivalent power | -45 | 0 | dBm | 52.3Ω外部终端 | 4 | ||
| Voltage range V_UP with VSET connected | V_UP | 0.015 | 1.23 | V | V_UP 接 VSET | 4 | |
| Minimum output voltage | V_UP | 0.013 | 0.015 | 0.016 | V | RFIN 端无信号输入,RL≥10k | 4 |
| Maximum output voltage | V_UP | 1.22 | 1.224 | 1.23 | V | RL≥10k | 4 |
| Source current capability | 17.8 | 18 | 18.7 | mA | V_UP 电流源 | 5 | |
| Sink current capability | 1.5 | 2.2 | 2.4 | mA | V_UP 电流沉 | 5 | |
| Minimum output voltage | V_DN | 0.03 | 0.036 | 0.05 | V | VPOS≥3.3V | 5 |
| Maximum output voltage | V_DN | 2.2 | 2.26 | 2.3 | V | VPOS≥3.3V | 5 |
| Source current capability V_DN | 35 | 37 | 39 | mA | 电流源 | 5 | |
| Sink current capability V_DN | 1.4 | 2.1 | 2.4 | mA | 电流沉 | 5 | |
| VSET voltage range | VSET | 0.15 | 1.2 | V | 对应中心 40dB | 5 | |
| VSET input resistance | 8 | 10 | 12 | kΩ | 5 | ||
| Enable high-level input | ENBL | 1.4 | V | 高电平输入,-40℃~85℃ | 5 | ||
| Enable low-level output | ENBL | -0.5 | 0.1 | V | 低电平输出,-40℃~85℃ | 5 | |
| Supply voltage | VPOS | 2.7 | 3.3 | 5.5 | V | 供电电压 | 5 |
| Quiescent current | 5.3 | 5.6 | mA | 静态电流 | 5 | ||
| Quiescent current over temperature | 4.2 | 5.7 | 6.3 | mA | 温度范围内 -40℃-85℃ | 5 | |
| Enable-on input current | 20 | 300 | uA | ENBL=2.7V,-40℃~85℃ | 5 | ||
| Enable-off current | 1.2 | 6.3 | mA | 使能关时电流 | 5 | ||
| Enable-off current over temperature | 1.2 | 6.3 | mA | 温度范围内 -40℃-85℃ | 5 | ||
| Logarithmic slope V_UP | 22 | mV/dB | V_UP,100MHz | 4 | |||
| Logarithmic intercept V_UP | -63.5 | dBV | V_UP,100MHz | 4 | |||
| Equivalent power at intercept | -50.5 | dBm | 52.3Ω外部终端 | 4 | |||
| DC resistance to ground at RFIN | 95 | kΩ | 对地直流电阻 | 4 | |||
| In-band input resistance | 3 | kΩ | f=0.1GHz | 4 | |||
| Input capacitance | 2.3 | pF | f=0.1GHz | 4 | |||
| Response time 10%-90% | 83 | ns | 10%-90%,10dB 阶跃 | 5 | |||
| Residual RF signal worst case | 30 | uV | f=0.1GHz,最差情况 | 5 | |||
| V_DN gain relative to V_UP | -2 | 5 | |||||
| Output referred noise | 0.16 | Hz V | RFIN=2GHz,-33dBV,fNOISE=10kHz | 5 | |||
| Full-scale settling time | 160 | ns | -40dBm 到 0dBm | 5 | |||
| Logarithmic slope at 0.9GHz | 22.2 | mV/dB | f=0.9GHz | 5 | |||
| Logarithmic slope at 1.9GHz | 21.9 | mV/dB | f=1.9GHz | 5 |
CAD (KiCad official)
- Symbol:
MS2351M - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
ms2351m-etched.step/ms2351m-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ms2351m.step/ms2351m.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hangzhou Ruimeng Tech datasheet (27 pp, sha256
407ed168b9533fb6, retrieved 2026-11-02, tier: lcsc) - 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-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).