FEATURES
Improved, Lower Cost, Replacements for Standard 1403, 1403A
3-Terminal Device: Voltage In/Voltage Out
Laser Trimmed to High Accuracy: 2.500 V 6 10 mV (AD1403A)
Excellent Temperature Stability: 25 ppm/8C (AD1403A)
Low Quiescent Current: 1.5 mA max
10 mA Current Output Capability
Low Cost
Convenient Mini-DIP Package
PRODUCT DESCRIPTION
The AD1403 and AD1403A are improved three-terminal, low cost, temperature compensated, bandgap voltage references that provide a fixed 2.5 V output voltage for inputs between 4.5 V and 40 V. A unique combination of advanced circuit design and laser-wafer-trimmed thin-film resistors provides the AD1403/AD1403A with an initial tolerance of ±10 mV and a temperature stability of better than 25 ppm/°C. In addition, the low quiescent current drain of 1.5 mA (max) offers a clear advantage over classical Zener techniques.
The AD1403 or AD1403A is recommended as a stable reference for all 8-, 10- and 12-bit D-to-A converters that require an external reference. In addition, the wide input range of the AD1403/AD1403A allows operation with 5 volt logic supplies, making these devices ideal for digital panel meter applications and when only a single logic supply is available.
The AD1403 and AD1403A are specified for operation over the 0°C to +70°C temperature range. The AD580 series of 2.5 volt precision IC references is recommended for applications where operation over the –55°C to +125°C range is required.
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AD1403A.pdf
