THALER VRE4120B, VRE4112C, VRE4112K, VRE4112B, VRE4110K Datasheet
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VRE4100 Series
Low Cost, SOIC-8
Precision References
THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000
FEATURES
•1.024, 1.250, 2.048, 2.500, 4.096V Output
•Initial Error: ± 0.05% max.
•Temperature Drift: 1.0 ppm/°C max.
•Low Noise: 2.2µVp-p (0.1Hz-10Hz, 1.024V)
•Low Thermal Hysterisis: 20ppm
•±8mA Output Source
•Power Down Mode
•Industry Standard SOIC-8 pin out
•Commercial and Industrial Temp Ranges
•Second source for ADR29X, REF19X ,LT1460, LT1461, LT1798, MAX616X, REF102
DESCRIPTION
The VRE4100 is a low cost, high precision bandgap reference that operates from +5V. The device features low noise, digital error correction, and an SOIC-8 package. The ultrastable output is 0.05% accurate with a temperature coefficient as low as 1.0 ppm/°C. The improvement in overall accuracy is made possible by using EEPROM registers and CMOS DAC’s for temperature and initial error correction. The DAC trimming is done after assembly which eliminates assembly related shifts.
The VRE4100 is recommended for use as a reference for 14, 16, or 18 bit data converters which require a precision reference. The VRE4100 offers superior performance over standard on-chip references commonly found with data converters.
PIN CONFIGURATION
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NC |
VRE4100 |
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+VIN |
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TOP |
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Enable |
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VREF |
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VIEW |
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GND |
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FIGURE 1
SELECTION GUIDE
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Output |
Temp. |
Temp. |
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Voltage |
Coeff. |
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Model |
Range °C |
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ppm/°C |
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VRE4110B |
1.024 |
1.0 |
0°C to +70°C |
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VRE4110C |
1.024 |
2.0 |
0°C to +70°C |
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VRE4110K |
1.024 |
3.0 |
-40°C to +85°C |
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VRE4112B |
1.250 |
1.0 |
0°C to +70°C |
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VRE4112C |
1.250 |
2.0 |
0°C to +70°C |
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VRE4112K |
1.250 |
3.0 |
-40°C to +85°C |
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VRE4120B |
2.048 |
1.0 |
0°C to +70°C |
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VRE4120C |
2.048 |
2.0 |
0°C to +70°C |
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VRE4120K |
2.048 |
3.0 |
-40°C to +85°C |
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VRE4125B |
2.500 |
1.0 |
0°C to +70°C |
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VRE4125C |
2.500 |
2.0 |
0°C to +70°C |
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VRE4125K |
2.500 |
3.0 |
-40°C to +85°C |
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VRE4141B |
4.096 |
1.0 |
0°C to +70°C |
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VRE4141C |
4.096 |
2.0 |
0°C to +70°C |
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VRE4141K |
4.096 |
3.0 |
-40°C to +85°C |
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VRE4100DS REV. A MAY 01
ABSOLUTE MAXIMUM RATINGS
Power supply to any input pin ….…-0.3V to +5.6V Operating Temp. (B,C) …………..……0°C to 70°C Operating Temp. (K)………………...-40°C to 85°C Storage Temperature Range……..-65°C to 150°C
Output Short Circuit Duration …….…………....Indefinite ESD Susceptibility Human Body Model…….…..…..2kV ESD Susceptibility Machine Model ..………………200V Lead Temperature (soldering,10 sec)………...….260°C
ELECTRICAL SPECIFICATIONS
Vps =+3V for VRE4110 and VRE4112, Vps =+5V for VRE4125, VRE4125 and VRE4141. T = 25°C, Iload=1mA, Cout=1µF unless otherwise noted.
PARAMETER |
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SYMBOL |
CONDITIONS |
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TYP |
MAX |
UNITS |
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Input Voltage |
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VIN |
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1.8 |
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5.5 |
V |
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Output Voltage Error |
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VOUT |
VRE4100B |
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± 0.025% |
± 0.050% |
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VRE4100C/K |
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± 0.040% |
± 0.080% |
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(Note 1) |
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Output Voltage |
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VRE4100B |
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0.5 |
1.0 |
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VRE4100C |
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1.0 |
2.0 |
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Temperature Coefficient |
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TCVOUT |
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ppm/°C |
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(Note 2) |
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VRE4100K |
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1.5 |
3.0 |
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Dropout Voltage (Note 3) |
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VIN -VOUT |
IL = 8 mA |
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160 |
235 |
mV |
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Turn-On Settling Time |
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TON |
To 0.01% of final value |
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2 |
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µs |
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Output Noise Voltage |
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En |
0.1Hz<f<10Hz |
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2.2 |
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µVp-p |
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(Note 4) |
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Temperature Hysterisis |
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Note 5 |
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20 |
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ppm |
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Long Term Stability |
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VOUT/T |
1000 Hours |
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50 |
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ppm |
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Supply Current |
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IIN |
Vload = 0mA |
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230 |
320 |
µA |
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Load Regulation (Note 6) |
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VOUT/ |
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IOUT |
1mA |
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ILoad |
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8mA |
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1 |
20 |
ppm/mA |
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Line Regulation (Note 6) |
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VOUT/ |
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VIN |
Vref + 200mV |
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VIN |
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5.5V |
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20 |
200 |
ppm/V |
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Logic High Input Voltage |
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VH |
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0.8 |
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V |
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Logic High Input Current |
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IH |
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2 |
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nA |
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Logic Low Input Voltage |
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VL |
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0.4 |
V |
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Logic Low Input Current |
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IL |
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1 |
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nA |
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Notes:
1.High temperature and mechanical stress can effect the initial accuracy of the VRE4100 series references.See discussion on output accuracy.
2.The temperature coefficient is determined by the box method. See discussion on temperature performance. All units are 100% tested over temperature.
3.The minimum input to output differential voltage at which the output voltage drops by 0.5% from nominal.
4.Based on 1.024V output. Noise is linearly proportional to VREF.
5.Defined as change in 25°C output voltage after cycling device over operating temperature range.
6.Line and load regulation are measured with pulses and do not include output voltage changes due to self heating.
VRE4100DS REV. A MAY 01
TYPICAL PERFORMANCE CURVES
Load Regulation vs Temperature |
Output Voltage vs Load Current |
Load Transient Response |
Line Regulation vs Temperature |
Power Up/Down Ground Current |
Line Transient Response |
Enable Response |
Output Impedance |
Power Supply Rejection Ratio |
VRE4100DS REV. A MAY 01
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