THALER VRE3041LS, VRE3041LD, VRE3041KS, VRE3041KD, VRE3041JS Datasheet
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DESCRIPTION
FEATURES
The VRE3041 is a low cost, high precision 4.096V
reference that operates from +10V. The device
features a buried zener for low noise and excellent
long term stability. Packaged in an 8 pin DIP and
SMT, the device is ideal for high resolution data
conversion systems.
The device provides ultrastable +4.096V output
with ±0.4096 mV (.01%) initial accuracy and a
temperature coefficient of 0.6 ppm/°C. This
improvement in accuracy is made possible by a
unique, patented multipoint laser compensation
technique developed by Thaler Corporation.
Significant improvements have been made in
other performance parameters as well, including
initial accuracy, warm-up drift, line regulation, and
long-term stability, making the VRE3041 series
the most accurate reference available.
For enhanced performance, the VRE3041 has an
external trim option for users who want less than
0.01% initial error. For ultra low noise
applications, an external capacitor can be
attached between the noise reduction pin and the
ground pin.
5
6
7
8
VRE3041
TOP
VIEW
1
2
3
4
N/C
+V
IN
N/C
GND
NOISE
REDUCTION
V
OUT
TRIM
PIN CONFIGURATION
The VRE3041 is recommended for use as a
reference for 14, 16, or 18 bit data converters
which require an external precision reference.
The device is also ideal for calibrating scale factor
on high resolution data converters. The VRE3041
offers superior performance over monolithic
references.
• 4.096 V Output ± 0.409 mV (.01%)
• Temperature Drift: 0.6 ppm/°C
• Low Noise: 3µV
p-p
(0.1Hz-10Hz)
• Low Thermal Hysteresis: 1 ppm Typ.
• ±15mA Output Source and Sink Current
• Excellent Line Regulation: 5 ppm/V Typ.
• Optional Noise Reduction and Voltage Trim
• Industry Standard Pinout
FIGURE 1
SELECTION GUIDE
Model
Temp.
Range °C
Temp.
Coeff.
ppm/°C
VRE3041A 0.410 0.6 0°C to +70°C
VRE3041B 0.614 1.0 0°C to +70°C
VRE3041C 0.820 2.0 0°C to +70°C
VRE3041J 0.410 0.6 -40°C to +85°C
VRE3041K 0.614 1.0 -40°C to +85°C
VRE3041L 0.820 2.0 -40°C to +85°C
For package option add D for DIP or S for Surface Mount
to end of model number.
Initial
Error
mV
THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000
N/C
VRE3041DS REV. D JULY 2000
VRE3041
Low Cost
Precision Reference
ppm/
1khrs
6∆V
OUT/t
Long Term Stability
µVp-p2.40.1Hz<f<10Hz
e
n
Output Noise Voltage
µs2 To 0.01% of final valueT
on
Turn-On Settling Time
mV±4Figure 3∆V
OUT
Trim Adjustment Range
1.0 2.0VRE3041C/K
0.5 1.0VRE3041B/K
4.0952 4.096 4.0968VRE3041C/L
4.0954 4.096 4.0966VRE3041B/K V
4.0956 4.096 4.0964VRE3041A/J
V
OUT
Output Voltage
(Note 1)
5 1010V ≤ V
IN
≤ 18V
ppm/V
25 358V ≤ V
IN
≤ 10V
∆V
OUT
/
∆V
IN
Line Regulation
ppm/
mA8 12
8 12
Sourcing:
0mA ≤ I
OUT
≤ 15mA
Sinking:
-15mA ≤ I
OUT
≤0mA
∆V
OUT
/
∆I
OUT
Load Regulation
mA3.5 4.0I
IN
Supply Current
µV
RMS
2 410Hz<f<1kHz
ppm1Note 4Temperature Hysterisis
ppm/°C
0.3 0.6VRE3041A/J
TCV
OUT
Output Voltage
Temperature Coefficient
(Note 2)
V8 36V
IN
UNITSMIN TYP MAXSYMBOL CONDITIONS
Input Voltage
PARAMETER
ELECTRICAL SPECIFICATIONS
Vps =+10V, T = 25°C, Iout=0mA unless otherwise noted.
VRE3041DS REV. D JULY 2000
ABSOLUTE MAXIMUM RATINGS
Power Supply ………………………-0.3V to +40V Out Short Circuit to GND Duration (VIN< 12V)…...Continuous
OUT, TRIM …………………………-0.3V to +12V Out Short Circuit to GND Duration (VIN< 40V)…….……5 sec
NR……………………………………-0.3V to +6V Out Short Circuit to IN Duration (VIN< 12V)……...Continuous
Operating Temp. (A,B,C)……………0 °C to 70°C Continuous Power Dissipation (TA= +70°C)………...300mW
Operating Temp. (J,K,L)……………-40 °C to 85°C Storage Temperature………………………..…-65°C to 150°C
Lead Temperature (soldering,10 sec)…………………..250°C
Notes:
1) The specified values are without external trim.
2) The temperature coefficient is determined by the
box method. See discussion on temperature
performance.
3) Line and load regulation are measured with pulses and
do not include voltage changes due to temperature.
4) Hysterisis measured over the operating temperature
range.
TYPICAL PERFORMANCE CURVES
Temperature (oC)
VRE3041A
V
OUT
vs. TEMPERATURE
SUPPLY CURRENT
VS. SUPPLY VOLTAGE
QUIESCENT CURRENT VS. TEMP
Temperature (oC)
OUTPUT IMPEDIANCE
VS. FREQUENCY
Temperature (oC)
VRE3041B
V
OUT
vs. TEMPERATUREV
OUT
vs. TEMPERATURE
Temperature (oC)
VRE3041C
Temperature (oC)
VRE3041J
V
OUT
vs. TEMPERATURE
Temperature (oC)
VRE3041K
V
OUT
vs. TEMPERATURE
Temperature (oC)
VRE3041L
V
OUT
vs. TEMPERATURE
Supply Voltage (V)
Supply Current (mA)
Frequency (Hz)
∆V
out
(mV)
∆V
out
(mV)
∆V
out
(mV)
∆V
out
(mV)
∆V
out
(mV)
∆V
out
(mV)
Quiescent Current (mA)
Output Impediance ( Ω)
VRE3041DS REV. D JULY 2000
0
50
-50
100
6.0
4.0
2.0
0
8.0
15255
35
5.0
4.0
3.0
0
6.0
102030400
-50
-25
0
25
50
75
100
2.0
1.5
1.0
0.5
0
-1.0
-0.5
-1.5
-2.0
Lower Limit
Upper Limit
-50
-25
0
25
50
75
100
2.0
1.5
1.0
0.5
0
-1.0
-0.5
-1.5
-2.0
Lower Limit
Upper Limit
0
20
304050
60
70
1.00
0.75
0.50
0.25
0
-0.50
-0.25
-0.75
-1.00
Lower Limit
Upper Limit
0
20
304050
60
70
1.00
0.75
0.50
0.25
0
-0.50
-0.25
-0.75
-1.00
Lower Limit
Upper Limit
Lower Limit
Upper Limit
-0.75
0
20
304050
60
70
1.00
0.75
0.50
0.25
0
-0.50
-0.25
-1.00
Lower Limit
Upper Limit
-50
-25
0
25
50
75
100
2.0
1.5
1.0
0.5
0
-1.0
-0.5
-1.5
-2.0
Lower Limit
Upper Limit
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