Overview
The LT1113CS8#PBF, produced by Analog Devices Inc., is a dual low noise, precision JFET input operational amplifier. This component sets a new standard in noise performance, making it ideal for amplifying low-level signals from high impedance capacitive transducers. The LT1113 is known for its exceptional noise characteristics, low current noise, and high precision, making it a valuable asset in various precision applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±5V | 0.40 | 0.45 | 1.5 | mV |
| Input Offset Current (IOS) | Warmed Up | 30 | 100 | 150 | pA |
| Input Bias Current (IB) | Warmed Up | 300 | 450 | 480 | pA |
| Input Noise Voltage Density | fO = 100kHz | 4.5 | 5.6 | nV/√Hz | |
| Settling Time (tS) | 0.01%, AV = +1, RL = 1k, CL ≤ 1000pF, 10V Step | 4.2 | µs | ||
| Supply Current per Amplifier (IS) | VS = ±5V | 5.3 | 6.25 | 6.50 | mA |
| Operating Temperature Range | –40°C | 85°C | °C | ||
| Storage Temperature Range | –65°C | 150°C | °C |
Key Features
- Low Noise Performance: The LT1113 features a low noise voltage density of 4.5nV/√Hz at 1kHz, making it suitable for high-sensitivity applications.
- Precision Operation: With an input offset voltage of 0.4mV and low input bias current, this op-amp ensures high precision in signal amplification.
- Stability: The LT1113 is unconditionally stable for gains of 1 or more, even with load capacitances up to 1000pF.
- High Gain Bandwidth: Each amplifier has a high gain bandwidth, ensuring accurate signal processing.
- Industry Standard Pinout: Available in an 8-lead PDIP and SO packages, the LT1113 follows an industry-standard pinout, facilitating easy integration into existing designs.
Applications
The LT1113 is widely used in various precision applications, including:
- Instrumentation Amplifier Front Ends: Its low noise and high precision make it ideal for use in instrumentation amplifier front ends.
- High Impedance Transducers: It is suitable for amplifying low-level signals from high impedance capacitive transducers.
- Medical Equipment: The LT1113’s precision and low noise characteristics are beneficial in medical equipment where signal accuracy is critical.
- Aerospace and Defense: Its robust performance over a wide temperature range makes it suitable for aerospace and defense applications.
Q & A
- What is the input noise voltage density of the LT1113?
The input noise voltage density of the LT1113 is 4.5nV/√Hz at 1kHz. - What is the typical input offset voltage of the LT1113?
The typical input offset voltage of the LT1113 is 0.45mV. - Is the LT1113 stable with high load capacitances?
Yes, the LT1113 is unconditionally stable for gains of 1 or more, even with load capacitances up to 1000pF. - What are the operating temperature ranges for the LT1113?
The operating temperature range for the LT1113AC/LT1113C is –40°C to 85°C, and for the LT1113AM/LT1113M (obsolete), it is –55°C to 125°C. - What is the typical supply current per amplifier for the LT1113?
The typical supply current per amplifier for the LT1113 is 6.25mA when VS = ±5V. - What are the storage temperature ranges for the LT1113?
The storage temperature range for the LT1113 is –65°C to 150°C. - Is the LT1113 suitable for high impedance transducers?
Yes, the LT1113 is suitable for amplifying low-level signals from high impedance capacitive transducers. - What is the typical settling time for the LT1113?
The typical settling time for the LT1113 is 4.2µs for a 0.01% settling, AV = +1, RL = 1k, CL ≤ 1000pF, and a 10V step. - What are the common package types for the LT1113?
The LT1113 is available in 8-lead PDIP and SO packages. - Is the LT1113 used in medical equipment?
Yes, the LT1113’s precision and low noise characteristics make it suitable for use in medical equipment.
