Overview
The LM385Z-2.5/NOPB is a micropower voltage reference produced by Texas Instruments. This 2-terminal band-gap voltage regulator is designed for low power consumption and high accuracy, making it suitable for a wide range of applications. The device is part of the LM385 series, which includes various package options and temperature ranges. The LM385Z-2.5/NOPB is specifically rated for operation over a temperature range of 0°C to 70°C.
Key Specifications
| Parameter | Conditions | Typical Value | Minimum Value | Maximum Value |
|---|---|---|---|---|
| Reverse Breakdown Voltage | IR = 100 μA | 2.5 V | 2.480 V | 2.520 V |
| Minimum Operating Current | 20 μA | |||
| Reverse Dynamic Impedance | IR = 100 μA, f = 20 Hz | 0.6 Ω | ||
| Wideband Noise (rms) | IR = 100 μA, 10 Hz ≤ f ≤ 10 kHz | 120 μV | ||
| Long Term Stability | IR = 100 μA, T = 1000 Hr, TA = 25°C ±0.1°C | 20 ppm | ||
| Average Temperature Coefficient | IMIN ≤ IR ≤ 20 mA | 30 ppm/°C (X Suffix), 50 ppm/°C (Y Suffix), 150 ppm/°C (All Others) | ||
| Operating Temperature Range | 0°C | 70°C |
Key Features
- Low power consumption with an operating current range of 20 μA to 20 mA.
- High accuracy with an initial tolerance of ±20 mV (±0.8%) for the A grade.
- Low dynamic impedance of 0.6 Ω.
- Low temperature coefficient, ensuring stable performance across a wide temperature range.
- Wideband noise of 120 μV (rms) over the frequency range of 10 Hz to 10 kHz.
- Long-term stability with a drift of 20 ppm over 1000 hours at 25°C ±0.1°C.
- Available in various package options including TO-92, SOIC, and SOT-23.
- Exceptional tolerance to capacitive loading.
Applications
- Portable meters and battery-powered devices due to its low power consumption.
- General-purpose analog circuitry requiring a stable voltage reference.
- Regulators and voltage stabilizers in various electronic systems.
- Micropower circuitry where low current draw is critical.
- Industrial and automotive applications where temperature stability is essential.
Q & A
- What is the operating temperature range of the LM385Z-2.5/NOPB?
The operating temperature range is 0°C to 70°C.
- What is the typical reverse breakdown voltage of the LM385Z-2.5/NOPB?
The typical reverse breakdown voltage is 2.5 V.
- What is the minimum operating current for the LM385Z-2.5/NOPB?
The minimum operating current is 20 μA.
- What is the dynamic impedance of the LM385Z-2.5/NOPB?
The dynamic impedance is 0.6 Ω at IR = 100 μA and f = 20 Hz.
- What is the wideband noise of the LM385Z-2.5/NOPB?
The wideband noise is 120 μV (rms) over the frequency range of 10 Hz to 10 kHz.
- What is the long-term stability of the LM385Z-2.5/NOPB?
The long-term stability is 20 ppm over 1000 hours at 25°C ±0.1°C.
- What are the available package options for the LM385Z-2.5/NOPB?
The device is available in TO-92, SOIC, and SOT-23 packages.
- Is the LM385Z-2.5/NOPB tolerant of capacitive loading?
Yes, the device is exceptionally tolerant of capacitive loading.
- What are some common applications of the LM385Z-2.5/NOPB?
Common applications include portable meters, general-purpose analog circuitry, regulators, and micropower circuitry.
- Does the LM385Z-2.5/NOPB have built-in ESD protection?
No, the device has limited built-in ESD protection and requires careful handling to prevent electrostatic damage.
