XB-OP07A
High-precision op-amp with ultra-low offset voltage and drift for measurement and sensor applications.
Product Overview
Description
The XB-OP07A is a precision operational amplifier designed for high-accuracy signal conditioning.
It features ultra-low input offset voltage and minimal drift over temperature.
The excellent DC precision makes it ideal for sensor signal conditioning and measurement systems.
Product Series
XB
Primary Application
Precision sensor conditioning
Key Features
- Ultra-low offset voltage 50μV max
- Low offset drift 0.5μV/°C
- High CMRR 120dB
- Low input bias current
- Excellent long-term stability
- No external nulling required
- Wide supply voltage range
- Standard pinout compatibility
Specifications
| Type | Precision Op-Amp |
|---|---|
| Input Offset Voltage | 50μV max |
| Offset Drift | 0.5μV/°C typical |
| GBW | 1MHz |
| Slew Rate | 0.3V/μs |
| Input Bias Current | 2nA typical |
| CMRR | 120dB min |
| Supply Voltage | ±5V to ±18V |
| Package | SOIC-8 |
Applications
Precision sensor conditioning
Sensor signal conditioning
Data acquisition systems
Data acquisition and conversion
Test and measurement equipment
Data acquisition and conversion
Industrial process control
Industrial automation and control
Medical instrumentation
Medical electronics
FAE Expert Insights
"The XB-OP07A is an excellent precision op-amp for measurement applications. The 50μV max offset is impressive for the price point - comparable to much more expensive precision op-amps. I've used this successfully in strain gauge amplifiers, thermocouple conditioning, and precision current sensing. The low drift over temperature ensures stable performance in industrial environments. The standard pinout makes it a drop-in replacement for legacy OP07 designs. For precision DC applications where cost matters, this op-amp delivers outstanding value."
50μV offset with low drift for precision applications
— Sarah Liu, BeiLuo
Frequently Asked Questions
Do I need offset nulling with XB-OP07A?
No, XB-OP07A typically does not require external offset nulling for most applications. The 50μV max offset is sufficient for many precision applications without trimming. For applications requiring even lower offset, the internal trimming already provides excellent accuracy. External nulling can be used if sub-50μV offset is required, but this is rarely necessary. The low offset drift (0.5μV/°C) ensures stable performance over temperature without readjustment.
No external nulling needed for most applications. Use as-is for simplicity.
What is the noise performance of XB-OP07A?
XB-OP07A has 0.5μVpp typical 0.1Hz to 10Hz noise (peak-to-peak) and 12nV/√Hz voltage noise density at 1kHz. This low noise makes it suitable for precision DC and low-frequency applications. For comparison, general-purpose op-amps may have several microvolts of 0.1-10Hz noise. While not the lowest noise op-amp available, the XB-OP07A provides excellent noise performance for its price point. For very low noise requirements, consider specialized low-noise op-amps.
XB-OP07A suitable for most precision applications. Consider specialized low-noise parts for critical applications.
Can XB-OP07A operate on single supply?
XB-OP07A is designed for dual supplies (±5V to ±18V) and is not rail-to-rail. The input common-mode range does not include the negative rail, and output swing is limited to about 2V from each rail. For single-supply applications, consider using a virtual ground at half supply or select a true single-supply, rail-to-rail op-amp from Xinbole's portfolio. The XB-OP07A excels in traditional dual-supply precision applications.
Use XB-OP07A with dual supplies. Select rail-to-rail op-amps for single-supply applications.
What gain resistor values should I use with XB-OP07A?
For precision applications, use precision resistors (0.1% or better) to maintain accuracy. Keep resistor values moderate (1kΩ to 100kΩ) to minimize errors from bias current and thermal noise. Very high resistances increase noise and offset due to bias current. Very low resistances load the output and increase power consumption. For high gains, consider multi-stage amplifiers rather than extreme resistor ratios. Match resistor temperatures for best drift performance.
Use 0.1% resistors, 1k-100kΩ range. Match temperatures for best performance.
Is XB-OP07A suitable for thermocouple amplification?
Yes, XB-OP07A is excellent for thermocouple amplification due to its low offset voltage and drift. Thermocouples produce small voltages (tens of microvolts per degree) requiring precision amplification. The XB-OP07A's 50μV offset is only a few degrees error for most thermocouple types. Use cold junction compensation and proper filtering for accurate temperature measurement. The low drift ensures stable readings over temperature changes.
XB-OP07A excellent for thermocouple applications. Add cold junction compensation.