REF3450 5V Low-Drift Low-Power Small-Footprint Series Voltage Reference | TI.com

REF3450 (ACTIVE)

5V Low-Drift Low-Power Small-Footprint Series Voltage Reference

 

Description

The REF34xx device is a low temperature drift
(6 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initial accuracy, low operating current with power consumption less than 95 µA. This device also offers very low output noise of 3.8 µVp-p /V, which enables its ability to maintain high signal integrity with high-resolution data converters in noise critical systems. With a small SOT-23 package, REF34xx offers enhanced specifications and pin-to-pin replacement for MAX607x and ADR34xx. The REF34xx family is compatible to most of the ADC and DAC such as ADS1287, ADUCM360, ADS1112.

Stability and system reliability are further improved by the low output-voltage hysteresis of the device and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) can benefit portable and battery-powered applications.

REF34xx is specified for the wide temperature range of −40°C to +125°C. Contact the TI sales representative for additional voltage options.

 

 

Features

  • Initial Accuracy: ±0.05% (Maximum)
  • Temperature Coefficient : 6 ppm/°C (Maximum)
  • Operating Temperature Range: −40°C to +125°C
  • Output Current: ±10 mA
  • Low Quiescent Current: 95 µA (Maximum)
  • Wide Input Voltage: 12 V
  • Output 1/f Noise (0.1 Hz to 10 Hz): 3.8 µVPP/V
  • Excellent Long-Term Stability 25 ppm/1000 hrs
  • Small Footprint 6-Pin SOT-23 Package

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Parametrics Compare all products in Series voltage references

 
VO (V)
Initial accuracy (Max) (%)
Temp Coeff (Max) (ppm/ degree C)
Rating
Operating temperature range (C)
Iout/Iz (Max) (mA)
Iq (Typ) (uA)
Shutdown Current (Typ) (uA)
Iq (Max) (uA)
Features
Package Group
Vin (Min) (V)
Vin (Max) (V)
REF3450 REF3425 REF3430 REF3433 REF3440 REF5050
5     2.5     3     3.3     4.096     5    
0.05     0.05     0.05     0.05     0.05     0.05    
6     6     6     6     6     3    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
10     10     10     10     10     10    
72     72     72     72     72     800    
2.5     2.5     2.5     2.5     2.5      
95     95     95     95     95     1000    
Enable pin     Enable pin     Enable pin     Enable pin     Enable pin     TRIM/NR pin    
SOT-23 | 6     SOT-23 | 6     SOT-23 | 6     SOT-23 | 6     SOT-23 | 6     SOIC | 8
VSSOP | 8    
5.05     2.55     3.05     3.35     4.15     5.2    
12     12     12     12     12     18