Overview
The LT1009IDRG4 is a precision-trimmed 2.5V shunt regulator diode produced by Texas Instruments. This component is designed to offer high accuracy and stability, making it suitable for a variety of applications requiring precise voltage regulation. The LT1009 features low dynamic impedance and a wide operating current range, ensuring reliable performance across different conditions.
Key Specifications
| Parameter | Minimum | Typical | Maximum |
|---|---|---|---|
| Reverse Breakdown Voltage (VZ) at 25°C, IR = 1mA | 2.495 V | 2.500 V | 2.505 V |
| Reverse Breakdown Voltage Change with Current (ΔVZ) 400μA ≤ IR ≤ 10mA | 2.6 mV | 3.0 mV | 6 mV |
| Reverse Dynamic Impedance (rZ) at IR = 1mA | 0.2 Ω | 0.4 Ω | 1.0 Ω |
| Average Temperature Coefficient (ppm/°C) 0°C ≤ TA ≤ 70°C | 15 ppm/°C | 25 ppm/°C | 35 ppm/°C |
| Long-Term Stability (ppm/kHr) at TA = 25°C ±0.1°C, IR = 1mA | 20 ppm/kHr |
Key Features
- Precision-trimmed 2.5V reference voltage with a maximum initial tolerance of ±5mV.
- Low dynamic impedance, ensuring stable operation across a wide range of currents.
- Wide operating current range from 400μA to 10mA.
- Excellent temperature stability with an average temperature coefficient of 15-35 ppm/°C.
- Long-term stability of 20 ppm/kHr at 25°C.
- Low noise voltage, making it suitable for high-precision applications.
Applications
- Portable test instruments and measurement devices.
- Battery-operated systems requiring precise voltage regulation.
- Current-loop instrumentation and control systems.
- High-precision analog circuits and signal processing systems.
- Medical and industrial equipment where stable reference voltages are critical.
Q & A
- What is the typical reference voltage of the LT1009IDRG4?
The typical reference voltage is 2.5V.
- What is the operating current range of the LT1009IDRG4?
The operating current range is from 400μA to 10mA.
- What is the average temperature coefficient of the LT1009IDRG4?
The average temperature coefficient is 15-35 ppm/°C.
- How stable is the LT1009IDRG4 over long periods?
The long-term stability is 20 ppm/kHr at 25°C.
- What are the typical applications of the LT1009IDRG4?
Typical applications include portable test instruments, battery-operated systems, current-loop instrumentation, and high-precision analog circuits.
- What is the reverse dynamic impedance of the LT1009IDRG4?
The reverse dynamic impedance is typically 0.4 Ω at IR = 1mA.
- How does the LT1009IDRG4 handle noise?
The LT1009IDRG4 has low noise voltage, making it suitable for high-precision applications.
- What is the maximum initial tolerance of the LT1009IDRG4?
The maximum initial tolerance is ±5mV.
- Is the LT1009IDRG4 suitable for high-temperature environments?
Yes, it operates within a temperature range of -40°C to 85°C.
- Where can I find more detailed specifications for the LT1009IDRG4?
You can find detailed specifications in the datasheet available on the Texas Instruments website or through authorized distributors.
