VRE4100 Series Low Cost, SOIC-8 Precision References
RHOPOINT COMPONENTS LTD •
Tel: +44 (0) 1883 717988 • Fax: +44 (0) 1883 712938 • Email: sales@rhopointcomponents.com Website: www.rhopointcomponents.com
FEATURES
• 1.024, 1.250, 2.048, 2.500, 4.096V Output • Initial Error: ± 0.05% max. • Temperature Drift: 1.0 ppm/°C max.
NC 1 2 3 4 8 NC NC VREF NC
PIN CONFIGURATION
• 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
+VIN Enable GND
VRE4100 TOP VIEW
7 6 5
FIGURE 1
SELECTION GUIDE Output Voltage V
1.024 1.024 1.024 1.250 1.250 1.250 2.048 2.048 2.048 2.500 2.500 2.500 4.096 4.096 4.096
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. Model
VRE4110B VRE4110C VRE4110K VRE4112B VRE4112C VRE4112K VRE4120B VRE4120C VRE4120K VRE4125B VRE4125C VRE4125K VRE4141B VRE4141C VRE4141K
Temp. Coeff. ppm/°C
1.0 2.0 3.0 1.0 2.0 3.0 1.0 2.0 3.0 1.0 2.0 3.0 1.0 2.0 3.0
Temp. Range °C
0°C to +70°C 0°C to +70°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C
VRE4100DS REV. A MAY 01
www.thaler.com
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 Input Voltage Output Voltage Error
(Note 1)
SYMBOL VIN
CONDITIONS
MIN 1.8
TYP
MAX 5.5
UNITS V %
VRE4100B VOUT VRE4100C/K VRE4100B Output Voltage Temperature Coefficient
(Note 2)
± 0.025% ± 0.050% ± 0.040% ± 0.080% 0.5 1.0 1.5 160 2 2.2 20 50 230 1 20 0.8 2 0.4 1 320 20 200 1.0 2.0 3.0 235 mV µs µVp-p ppm ppm µA
ppm/mA
TCVOUT VIN -VOUT TON En
VRE4100C VRE4100K IL = 8 mA To 0.01% of final value 0.1Hz
