Overview
The LT1014DMDWREP, produced by Texas Instruments, is a quad precision operational amplifier. It is designed to offer high precision and reliability in various applications. This amplifier is part of the LT1014 series, which is known for its industry-standard 14-pin DIP configuration, making it compatible with other popular op-amps like the LM324 and LM348. The LT1014DMDWREP features low offset voltage, low drift, high gain, and low noise, making it suitable for precision instrumentation and other critical applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -22 | 22 | V | |
| Differential Input Voltage | -30 | 30 | V | |
| Input Voltage Range (any input) | VCC- - 5 | VCC+ | V | |
| Operating Temperature Range | -55 | 125 | °C | |
| Storage Temperature Range | -65 | 150 | °C | |
| Offset Voltage | 50 | 150 | µV | |
| Offset Voltage Drift | 0.3 | 2 | µV/°C | |
| Offset Current | 0.15 | 0.8 | nA | |
| Gain (RL = 2 kΩ) | 1.2 V/µV | |||
| Gain (RL = 600 Ω) | 0.5 V/µV | |||
| Supply Current at 25°C | 2.2 | mA | ||
| Peak-to-Peak Noise Voltage (0.1 Hz to 10 Hz) | 0.55 | µV | ||
| Current Noise | 0.07 | pA/√Hz |
Key Features
- Single-Supply Operation: The LT1014DMDWREP can operate with a single 5-V power supply, and its common-mode input voltage range includes ground. The output voltage can swing to within a few millivolts of ground.
- Phase-Reversal Protection: Unique circuitry prevents phase reversal at the output even when the inputs are below ground, ensuring stable operation in servo systems.
- Low Offset Voltage and Drift: Guaranteed offset voltage of 150 µV max and drift of 2 µV/°C max, ensuring high precision.
- High Gain: Minimum gain of 1.2 V/µV (RL = 2 kΩ) and 0.5 V/µV (RL = 600 Ω).
- Low Supply Current: Maximum supply current of 2.2 mA at 25°C.
- Low Noise: Low peak-to-peak noise voltage of 0.55 µV (0.1 Hz to 10 Hz) and low current noise of 0.07 pA/√Hz.
- Pin Compatibility: Compatible with industry-standard 14-pin DIP configurations like LM324 and LM348.
Applications
- Battery-Powered Precision Instrumentation: Suitable for battery-powered devices due to its low supply current and single-supply operation.
- Strain Gauge Signal Conditioners: Ideal for precision signal conditioning in strain gauge applications.
- Thermocouple Amplifiers: Used in thermocouple amplification due to its high precision and low noise characteristics).
- Instrumentation Amplifiers: Suitable for various instrumentation amplifier configurations).
- 4mA to 20mA Current Loop Transmitters: Used in current loop transmitter applications requiring high precision).
- Multiple Limit Threshold Detection: Can be used in multiple limit threshold detection circuits).
- Active Filters and Multiple Gain Blocks: Suitable for active filter designs and multiple gain block configurations).
Q & A
- What is the typical supply current of the LT1014DMDWREP at 25°C?
The typical supply current is 2.2 mA at 25°C).
- Can the LT1014DMDWREP operate with a single power supply?
Yes, it can operate with a single 5-V power supply, and its common-mode input voltage range includes ground).
- What is the guaranteed offset voltage of the LT1014DMDWREP?
The guaranteed offset voltage is 150 µV max).
- How does the LT1014DMDWREP protect against phase reversal?
The LT1014DMDWREP has unique phase-reversal protection circuitry that prevents phase reversal at the output even when the inputs are below ground).
- What are the typical noise characteristics of the LT1014DMDWREP?
The LT1014DMDWREP has a low peak-to-peak noise voltage of 0.55 µV (0.1 Hz to 10 Hz) and low current noise of 0.07 pA/√Hz).
- Is the LT1014DMDWREP compatible with other industry-standard op-amps?
Yes, it is pin-compatible with industry-standard 14-pin DIP configurations like LM324 and LM348).
- What is the operating temperature range of the LT1014DMDWREP?
The operating temperature range is -55°C to 125°C).
- Can the LT1014DMDWREP be used in battery-powered devices?
Yes, it is suitable for battery-powered devices due to its low supply current and single-supply operation).
- What are some common applications of the LT1014DMDWREP?
Common applications include battery-powered precision instrumentation, strain gauge signal conditioners, thermocouple amplifiers, instrumentation amplifiers, and 4mA to 20mA current loop transmitters).
- How does the LT1014DMDWREP handle input signals below ground?
The LT1014DMDWREP has 400-Ω resistors in series with the input to protect the device from unlimited current flow when the input is below ground, and it also has phase-reversal protection circuitry to prevent output phase reversal).
