Overview
The REF194GSZ-REEL7 is a precision micropower low dropout voltage (LDV) reference IC produced by Analog Devices Inc. This device is part of the REF19x series, which utilizes a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy.
The REF194GSZ-REEL7 is designed to provide a stable output voltage of 4.5V with minimal power consumption, making it suitable for a variety of applications including portable instruments, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), smart sensors, and solar-powered applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Reference Voltage | 4.49V | 4.5V | 4.51V | V |
| Initial Accuracy | 0.044% | % | ||
| Temperature Coefficient | 5 ppm/°C | ppm/°C | ||
| IC Case / Package | NSOIC-8 | |||
| No. of Pins | 8 | |||
| Input Voltage Max | 15V | V | ||
| Operating Temperature Min | -40°C | °C | ||
| Operating Temperature Max | 85°C | °C | ||
| Output Current | 30mA | mA | ||
| Supply Current | 45μA | μA | ||
| Sleep Mode Current | 15μA | μA |
Key Features
- Precision band gap voltage reference with patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors.
- High initial accuracy: ±0.044% at 25°C.
- Low temperature coefficient: 5 ppm/°C.
- Low dropout voltage, operating from supplies as low as 100 mV above the output voltage.
- Low supply current: 45 μA maximum, and 15 μA in sleep mode.
- High output current capability: up to 30 mA.
- Short-circuit protection.
- Operating temperature range: -40°C to +85°C.
- RoHS compliant and no SVHC (Substances of Very High Concern).
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 due to its extended industrial temperature range.
Q & A
- What is the reference voltage of the REF194GSZ-REEL7?
The reference voltage is 4.5V with a minimum of 4.49V and a maximum of 4.51V.
- What is the initial accuracy of the REF194GSZ-REEL7?
The initial accuracy is ±0.044% at 25°C.
- What is the temperature coefficient of the REF194GSZ-REEL7?
The temperature coefficient is 5 ppm/°C.
- What is the maximum output current of the REF194GSZ-REEL7?
The maximum output current is 30 mA.
- What is the supply current of the REF194GSZ-REEL7 in normal operation and sleep mode?
The supply current is 45 μA in normal operation and 15 μA in sleep mode.
- What is the operating temperature range of the REF194GSZ-REEL7?
The operating temperature range is -40°C to +85°C.
- Is the REF194GSZ-REEL7 RoHS compliant?
Yes, the REF194GSZ-REEL7 is RoHS compliant.
- Does the REF194GSZ-REEL7 contain any SVHC?
No, the REF194GSZ-REEL7 does not contain any SVHC.
- What are some typical applications of the REF194GSZ-REEL7?
Typical applications include portable instruments, ADCs, DACs, smart sensors, solar-powered applications, and loop-current-powered instruments.
- What package type does the REF194GSZ-REEL7 come in?
The REF194GSZ-REEL7 comes in an 8-lead NSOIC package.
