Overview
The LM385D-1.2R2G is a micropower two-terminal bandgap voltage regulator diode produced by onsemi. This device is part of the LM285/LM385 series, designed to operate over a wide current range from 10 μA to 20 mA. It features exceptionally low dynamic impedance, low noise, and stable operation over time and temperature. The LM385D-1.2R2G is specifically rated for an operating temperature range of 0°C to +70°C and is available in a surface mount SOIC-8 package, which is Pb-free and RoHS compliant.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Breakdown Voltage | V(BR)R | 1.223 - 1.247 | V |
| Minimum Operating Current | IRmin | 8.0 - 20 | μA |
| Reverse Dynamic Impedance | Z | 0.6 | Ω |
| Average Temperature Coefficient | ΔV(BR)/ΔT | 80 | ppm/°C |
| Wideband Noise (RMS) | n | 60 | μV |
| Long Term Stability | S | 20 | ppm/kHR |
| Operating Ambient Temperature Range | TA | 0 to +70 | °C |
| Operating Junction Temperature | TJ | +150 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
Key Features
- Operating current from 10 μA to 20 mA
- 1.0%, 1.5%, 2.0%, and 3.0% initial tolerance grades
- Low temperature coefficient
- Low dynamic impedance (0.6 Ω)
- Surface mount package available
- Pb-free and RoHS compliant
Applications
The LM385D-1.2R2G is ideal for use in micropower circuitry, such as portable instrumentation, regulators, and other analog circuitry where extended battery life is required. Its wide dynamic operating range makes it suitable for applications with varying supply voltages, ensuring excellent regulation.
Q & A
- What is the operating current range of the LM385D-1.2R2G? The operating current range is from 10 μA to 20 mA.
- What are the available voltage versions for the LM385 series? The LM385 series is available in 1.235 V and 2.500 V versions.
- What is the temperature range for the LM385D-1.2R2G? The operating temperature range is from 0°C to +70°C.
- Is the LM385D-1.2R2G Pb-free and RoHS compliant? Yes, it is Pb-free and RoHS compliant.
- What is the typical reverse dynamic impedance of the LM385D-1.2R2G? The typical reverse dynamic impedance is 0.6 Ω.
- What is the average temperature coefficient of the LM385D-1.2R2G? The average temperature coefficient is 80 ppm/°C.
- What is the wideband noise (RMS) of the LM385D-1.2R2G? The wideband noise (RMS) is 60 μV.
- What is the long-term stability of the LM385D-1.2R2G? The long-term stability is 20 ppm/kHR.
- In what package is the LM385D-1.2R2G available? It is available in a surface mount SOIC-8 package.
- What are some typical applications for the LM385D-1.2R2G? Typical applications include portable instrumentation, regulators, and other analog circuitry where extended battery life is required.
