COS129UA

Based on official COSINE (Coresine) datasheets and authorized distributor product pages:

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**Description**
- 36V precision instrumentation amplifier
- High-precision, low-noise instrumentation amplifier designed for high-accuracy measurement and test equipment
- Features low offset voltage, low drift, and low input bias current
- Housed in SOP-8 surface mount package
- **Product Status:** Active (in production) – please verify with manufacturer before use

**Features**
- Very low offset voltage: 25µV typ. / 125µV max
- Ultra-low offset drift: 0.2µV/°C
- Low input bias current: 2nA typ.
- Low input offset current: 10nA
- Low noise: 8nV/√Hz @ 1kHz
- High CMRR: 125dB
- High PSRR: 120dB
- Gain bandwidth product: 1.5MHz
- Slew rate: 1V/µs
- Wide supply range:
- Single supply: 4.5V to 36V
- Dual supply: ±2.25V to ±18V
- Low quiescent current: 1mA
- Output current: 10mA
- Operating temperature range: –40°C to +125°C
- RoHS compliant and Pb-free

**Key Specifications** (Typical @ 25°C)
- Number of Channels: Single
- Supply Voltage (Single): 4.5V to 36V
- Supply Voltage (Dual): ±2.25V to ±18V
- Gain Bandwidth Product (GBW): 1.5MHz
- Slew Rate (SR): 1V/µs
- Input Offset Voltage (Vos): 25µV typ. / 125µV max
- Input Offset Voltage Drift (Vos TC): 0.2µV/°C
- Input Bias Current (Ib): 2nA typ.
- Input Offset Current (Ios): 10nA
- Input Voltage Noise Density (en): 8nV/√Hz @ 1kHz
- Common Mode Rejection Ratio (CMRR): 125dB
- Power Supply Rejection Ratio (PSRR): 120dB
- Quiescent Current (Iq): 1mA
- Output Current: 10mA
- Operating Temperature: –40°C to +125°C
- Package / Case: SOP-8

**Alternative Part Numbers** (Reference only – please verify with manufacturer)
- INA129UA (Texas Instruments)
- INA128UA/2K5 (Texas Instruments)
- AD620ARZ (Analog Devices)
- COS129U (SOP-8, similar specifications, same series)

**Applications**
- Precision measurement and test equipment
- High-accuracy data acquisition systems
- Sensor signal conditioning
- Medical instrumentation
- Industrial process controls
- Strain gauge amplifiers
- Thermocouple amplifiers
- Bridge transducers

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> **Note:** All parameters are subject to the official COSINE (Coresine) COS129UA datasheet. Specifications are typical values and may vary with operating conditions. Please verify all specifications with the manufacturer's official documentation before use.