Overview
The REF195GS-REEL7 is a precision micropower, low dropout voltage reference from Analog Devices Inc. It is part of the REF19x series, which utilizes a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors. This design ensures a very low temperature coefficient and high initial accuracy. The device is particularly suited for applications requiring stable output voltage with minimal power consumption.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Initial Accuracy | IOUT = 0 mA | - | - | ±2 mV | - |
| Temperature Coefficient | IOUT = 0 mA | - | - | 5 ppm/°C | - |
| Supply Current | No load | - | - | 45 μA | - |
| Sleep Mode Current | No load | - | - | 15 μA | - |
| Line Regulation | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | - | - | 4 ppm/V | - |
| Load Regulation | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | - | - | 4 ppm/mA | - |
| Dropout Voltage | VS = 3.5 V, ILOAD = 10 mA | - | - | 1.00 V | - |
| Operating Temperature Range | - | -40°C | - | +85°C | - |
| Package Type | - | - | - | 8-Lead SOIC | - |
Key Features
- Precision micropower voltage reference with high initial accuracy (±2 mV max)
- Low temperature coefficient (5 ppm/°C max)
- Low supply current (45 μA max) and sleep mode current (15 μA max)
- Low dropout voltage, allowing stable output from supplies as low as 100 mV above the output voltage
- High output current capability (up to 30 mA)
- Short-circuit protection and line and load regulation
- Extended industrial temperature range operation (-40°C to +85°C)
Applications
- Portable instruments
- Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs)
- Smart sensors
- Solar powered applications
- Loop-current-powered instruments
- Automotive applications
Q & A
- What is the initial accuracy of the REF195GS-REEL7?
The initial accuracy of the REF195GS-REEL7 is ±2 mV maximum.
- What is the temperature coefficient of the REF195GS-REEL7?
The temperature coefficient is 5 ppm/°C maximum.
- How much current does the REF195GS-REEL7 consume in normal operation and in sleep mode?
The device consumes less than 45 μA in normal operation and less than 15 μA in sleep mode.
- What is the minimum supply voltage required for the REF195GS-REEL7 to operate?
The device can operate with a supply voltage as low as 100 mV above the output voltage.
- What is the maximum output current of the REF195GS-REEL7?
The maximum output current is up to 30 mA.
- Does the REF195GS-REEL7 have short-circuit protection?
Yes, the device includes short-circuit protection.
- What is the operating temperature range of the REF195GS-REEL7?
The operating temperature range is -40°C to +85°C.
- In what package types is the REF195GS-REEL7 available?
The REF195GS-REEL7 is available in an 8-Lead SOIC package.
- What are some typical applications for the REF195GS-REEL7?
Typical applications include portable instruments, ADCs and DACs, smart sensors, solar powered applications, and automotive systems.
- Is a capacitor required for proper operation of the REF195GS-REEL7?
Yes, a 1 μF capacitor is required between the output pin and the GND pin of the device for proper operation.
