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Part: VRE304B
Category:
Power Management
-> Voltage References
-> Precision
Description: Output (V) = +4.5 ;; Initial Error (mV) = 0.4, 0.7, 0.9 ;; Temp Error (ppm/oC) = 0.6, 1.0, 2.0 ;; Noise (µVpp) = 3 ;; Package = DIP8, SMT8 ;; Feature = Low Cost
Company: Thaler Corp.
Datasheet: Download VRE304B datasheet File size : 347 kB
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Datasheet text preview:
VRE304 Low Cost Precision Reference
THALER CORPORATION · 2015 N. FORBES BOULEVARD · TUCSON, AZ. 85745 · (520) 882-4000
FEATURES
· 4.500 V OUTPUT ± 0.450 mV (.01%) · TEMPERATURE DRIFT: 0.6 ppm/°C · LOW NOISE: 3µV p-p (0.1-10Hz) · INDUSTRY STD PINOUT- 8 PIN DIP OR SURFACE MOUNT PACKAGE ·EXCELLENT LINE REGULATION: 6ppm/V Typ. · OUTPUT TRIM CAPABILITY FIGURE 1
N/C +VIN TEMP GND 1 2 3 4 8
PIN CONFIGURATION
NOIS E REDUCTION REF. GND VOUT TRIM
VRE304 TOP VIEW
7 6 5
DESCRIPTION
The VRE304 is a low cost, high precision 4.5V reference. Packaged in the industry standard 8 pin DIP, the device is ideal for upgrading systems that use lower performance references. The device provides ultrastable +4.500V output with ±0.4500 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 VRE304 series the most accurate reference available in the standard 8 pin DIP package. For enhanced performance, the VRE304 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. A reference ground pin is provided to eliminate socket contact resistance errors. The VRE304 is recommended for use as a reference for 14, 16, or 18 bit D/A converters which require an external precision reference. The device is also ideal for calibrating scale factor on high resolution A/D converters. The VRE304 offers superior performance over monolithic references. SELECTION GUIDE Initial Error mV
0.45 0.70 0.90 0.45 0.70 0.90
Model
VRE304A VRE304B VRE304C VRE304J VRE304K VRE304L
Temp. Coeff. ppm/°C
0.6 1.0 2.0 0.6 1.0 2.0
Temp. Range °C
0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C
For package option add D for DIP or S for Surface Mount to end of model number.
VRE304DS REV. D MAY 2001
ELECTRICAL SPECIFICATIONS
Vps =+15V, T = 25°C, RL = 10K unless otherwise noted.
VRE304
B/K
MAX M IN TY P MAX MIN
MODEL PARAMETER ABSOLUTE RATINGS Power Supply Operating Temp. (A,B,C) Operating Temp. (J,K,L) Storage Temperature Short Circuit Protection OUTPUT VOLTAGE VRE304 (1) Temp. Sensor Voltage OUTPUT VOLTAGE ERRORS Initial Error Warmup Drift Tmin - Tmax (3) Long-Term Stability Noise (.1-10Hz) (4) OUTPUT CURRENT Range REGULATION Line Load OUTPUT ADJUSTMENT Range POWER SUPPLY CURRENTS VRE304 +PS NOTES: *Same as A/J Models.
(5) (2)
A/J
MIN TYP
C/L
TYP MAX UNITS
+13.5 0 -40 -65
+22 +70 +85 +150 Continuous
+15
* * * *
*
* * * *
* * * *
*
* * * *
V °C °C °C
*
*
4.500 630
* *
* *
V mV
0.45 1 0.6 6 3 * * 2
0.70 3 1.0 * *
0.90 2.0
mV ppm ppm/°C ppm/1000hrs µVpp
±10
*
*
mA
6 3
10
* *
*
* *
*
ppm/V ppm/mA
10
*
*
mV
5
7
*
*
*
*
mA
1. The temp. reference TC is 2.1mV/ °C 2. The specified values are without external trim. 3. The temperature coefficient is determined by the box method using the following formula: Vmax - Vmin T.C. = Vnominal x (Tmax-Tmin) x 106
4. The specified values are without the external noise reduction capacitor. 5. The specified values are unloaded.
VRE304DS REV. D MAY 2001
TYPICAL PERFORMANCE CURVES
VOUT vs. TEMPERATURE VOUT vs. TEMPERATURE VOUT vs. TEMPERATURE
Temperature oC VRE304A
Temperature oC VRE304B
Temperature oC VRE304C
VOUT vs. TEMPERATURE
VOUT vs. TEMPERATURE
VOUT vs. TEMPERATURE
Temperature oC VRE304J
Temperature oC VRE304K
Temperature oC VRE304L
QUIESCENT CURRENT VS. TEMP
JUNCTION TEMP. RISE VS. OUTPUT CURRENT
PSRR VS. FREQUENCY
Temperature oC
Output Current (mA)
Frequency (Hz)
VRE304DS REV. D MAY 2001
Others parts begin by vr
VR-1 VR-2 VR-3 VR-4
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