THALER VRE4120B, VRE4112C, VRE4112K, VRE4112B, VRE4110K Datasheet

VRE4100 Series
Low Cost, SOIC-8
Precision References

THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • [phone]

FEATURES

• 1.024, 1.250, 2.048, 2.500, 4.096V Output

• Initial Error: ±0.05% max.

PIN CONFIGURATION

• Temperature Drift: 1.0 ppm/°C max.

• Low Noise: 2.2µV

(0.1Hz-10Hz, 1.024V)

p-p

• 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.

NC

+V

Enable

GND

1

VRE4100

2

IN

TOP

3

VIEW

4

8

NC

7

NC

6

V

REF

5

NC

FIGURE 1

SELECTION GUIDE

Output

Voltage

Model

VRE4110B 1.024 1.0 0°C to +70°C
VRE4110C 1.024 2.0 0°C to +70°C
VRE4110K 1.024 3.0 -40°C to +85°C

VRE4112B 1.250 1.0 0°C to +70°C
VRE4112C 1.250 2.0 0°C to +70°C
VRE4112K 1.250 3.0 -40°C to +85°C

VRE4120B 2.048 1.0 0°C to +70°C
VRE4120C 2.048 2.0 0°C to +70°C
VRE4120K 2.048 3.0 -40°C to +85°C

VRE4125B 2.500 1.0 0°C to +70°C
VRE4125C 2.500 2.0 0°C to +70°C
VRE4125K 2.500 3.0 -40°C to +85°C

VRE4141B 4.096 1.0 0°C to +70°C
VRE4141C 4.096 2.0 0°C to +70°C
VRE4141K 4.096 3.0 -40°C to +85°C

V

Temp.

Coeff.

ppm/°C

Temp.

Range °C

VRE4100DS REV. A MAY 01

ABSOLUTE MAXIMUM RATINGS

Power supply to any input pin ….…-0.3V to +5.6V Output Short Circuit Duration …….…………....Indefinite

Operating Temp. (B,C) …………..……0°C to 70°C ESD Susceptibility Human Body Model…….…..…..2kV
Operating Temp. (K)………………...-40°C to 85°C ESD Susceptibility Machine Model ..………………200V
Storage Temperature Range……..-65°C to 150°C 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, I

PARAMETER

=1mA, C

load

=1µF unless otherwise noted.

out

UNITSMIN TYP MAXSYMBOL CONDITIONS

Input Voltage

Output Voltage Error

(Note 1)

Output Voltage
Temperature Coefficient

(Note 2)

Dropout Voltage (Note 3)
Turn-On Settling Time
Output Noise Voltage

(Note 4)

Long Term Stability
Supply Current
Load Regulation (Note 6)
Line Regulation (Note 6)
Logic High Input Voltage
Logic High Input Current
Logic Low Input Voltage
Logic Low Input Current

IN

OUT

OUT

IN -VOUT

ON

n

OUT/T

IN

/ I

OUT

/ V

OUT

H

H

L

L

OUT

V1.8 5.5V
± 0.025% ± 0.050%VRE4100B
± 0.040% ± 0.080%VRE4100C/K

%V

0.5 1.0VRE4100B

1.0 2.0VRE4100C

ppm/°CTCV

1.5 3.0VRE4100K

160 235IL= 8 mA

mVV

µs2 To 0.01% of final valueT

µVp-p2.20.1Hz<f<10HzE

ppm20Note 5Temperature Hysterisis
ppm501000 HoursV

= 0mAI

load

8mAV

Load

IN

+ 200mV V

ref

IN

5.5VV

1 201mA I

µA230 320V

ppm/mA

ppm/V20 200V

V0.8V

nA2I

V0.4V

nA1I

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 V

REF.

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

Line Regulation vs Temperature

Output Voltage vs Load Current

Power Up/Down Ground Current

Load Transient Response

Line Transient Response

Enable Response

Output Impedance

Power Supply Rejection Ratio

VRE4100DS REV. A MAY 01