Overview
The LMP7707MFX/NOPB is a precision, CMOS input, rail-to-rail input and output (RRIO) decompensated single amplifier produced by Texas Instruments. It is part of the LMP precision amplifier family and is designed for applications requiring high precision and low offset voltage. The amplifier features a CMOS input stage and a wide supply voltage range of 2.7V to 12V, making it suitable for various instrumentation and sensor interface applications. The LMP7707 is available in a space-saving 5-pin SOT-23 package, ideal for area-constrained PC boards and portable electronics.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±37 | ±200 | ±500 | μV |
| Input Offset Voltage Drift (TCVOS) | ±1 | ±5 | μV/°C | |
| Input Bias Current (IB) | ±0.2 | ±1 | ±50 | pA |
| Common Mode Rejection Ratio (CMRR) | 86 | 130 | dB | |
| Power Supply Rejection Ratio (PSRR) | 86 | 98 | dB | |
| Input Common-Mode Voltage Range (CMVR) | -0.2 | 3.2 | V | |
| Open Loop Voltage Gain (AVOL) | 100 | 114 | dB | |
| Output Swing High from V+ | 40 | 60 | mV | |
| Output Swing Low from V- | 20 | 40 | mV | |
| Supply Current (IS) | 0.67 | 1.0 | 1.8 | mA |
| Slew Rate (SR) | 5.1 | V/μs | ||
| Gain Bandwidth Product (GBWP) | 13 | MHz |
Key Features
- Low Offset Voltage: Ensured low offset voltage of less than ±200 µV, making it ideal for precision applications.
- Low Input Bias Current: Ensured low input bias current of less than ±1 pA.
- Rail-to-Rail Input and Output: The amplifier features rail-to-rail input and output capabilities, maximizing signal dynamic range.
- Wide Supply Voltage Range: Operates over a wide supply voltage range of 2.7V to 12V.
- CMOS Input Stage: Utilizes VIP50 technology, combining a CMOS input stage with a wide supply voltage range.
- Reduced CMRR Glitch: Unique design reduces the CMRR glitch commonly associated with rail-to-rail input amplifiers.
- Compact Packaging: Available in a space-saving 5-pin SOT-23 package, ideal for area-constrained designs.
Applications
- High Impedance Sensor Interface: Ideal for interfacing with high impedance sensors.
- Battery Powered Instrumentation: Suitable for battery-powered instrumentation due to its low power consumption.
- High Gain Amplifiers: Can be used in high gain amplifier configurations.
- DAC Buffer: Can serve as a buffer for digital-to-analog converters (DACs).
- Instrumentation Amplifier: Can be used in instrumentation amplifier circuits.
- Active Filters: Suitable for use in active filter designs.
Q & A
- What is the input offset voltage of the LMP7707?
The input offset voltage of the LMP7707 is ensured to be less than ±200 µV.
- What is the input bias current of the LMP7707?
The input bias current of the LMP7707 is ensured to be less than ±1 pA.
- What is the supply voltage range of the LMP7707?
The LMP7707 operates over a wide supply voltage range of 2.7V to 12V.
- What type of input stage does the LMP7707 have?
The LMP7707 has a CMOS input stage.
- What is the common mode rejection ratio (CMRR) of the LMP7707?
The CMRR of the LMP7707 is typically 130 dB.
- What is the power supply rejection ratio (PSRR) of the LMP7707?
The PSRR of the LMP7707 is typically 98 dB.
- In what package is the LMP7707 available?
The LMP7707 is available in a 5-pin SOT-23 package.
- What are some common applications of the LMP7707?
The LMP7707 is commonly used in high impedance sensor interfaces, battery-powered instrumentation, high gain amplifiers, DAC buffers, instrumentation amplifiers, and active filters.
- How does the LMP7707 reduce CMRR glitches?
The LMP7707 reduces CMRR glitches through its unique design where both sides of the complimentary input stage have been trimmed, reducing the difference between the NMOS and PMOS offsets.
- What is the slew rate of the LMP7707?
The slew rate of the LMP7707 is typically 5.1 V/μs.
