VRE410BS

VRE410 RoHS Precision Dual Voltage Reference COMPLIANT FEATURES • • • • • • ±10V Output, ± 1.6mV Temperature Drift: 1.0 ppm/°C Low Noise: 6μVP-P (0.1-10 Hz) Tracking Error: 0.mV Excellent Line Regulation: 6ppm/V Typical Surface Mount Package APPLICATIONS The VRE410 is recommended for use as a reference for high precision D/A and A/D converters which require an external precision reference. The device is also ideal for calibrating scale factor on high resolution A/D converters. The VRE410 offers superior performance over monolithic references. DESCRIPTION The VRE410 is a low cost, high precision, ±10V reference. Available in a 14-pin SMT package, the device is ideal for new designs that need a high performance reference. The device provides ultrastable ±10V output with ±1.6mV initial accuracy and a temperature coefficient of 1.0ppm/°C. This improvement in accuracy is made possible by a unique, patented multipoint laser compensation technique. Another key feature of this reference is the 0.5mV tracking error between the positive and negative output voltages over the full operating temperature range. This is extremely important in high performance systems for reducing overall system errors. SELECTION GUIDE Initial Error (mV) Temp. Coeff. (ppm/°C) Temp Range (°C) VRE410AS ±1.6 1.0 0°C to +70°C VRE410BS ±2.0 2.0 0°C to +70°C VRE410JS ±1.6 1.0 -40°C to +85°C VRE410LS ±2.2 2.2 -40°C to +85°C Model www.apexanalog.com © Apex Microtechnology Inc. All rights reserved Dec 2018 VRE410DS Rev K VRE410 TYPICAL CONNECTION Figure 1: Typical Connection PS PS PIN DESCRIPTIONS 2 Pin Number Name Description 2 -OUT -10V output. 4 -VPS The negative supply voltage connection. 6 REF_GND Provided for accurate ground sensing. Internally connected to GND. 7 GND Ground. 11 +VPS The positive supply voltage connection. 13 +OUT +10V output. All Others NC No connection. VRE410DS Rev K VRE410 SPECIFICATIONS VPS = +15V, T = +25°C, RL = 10 kΩ unless otherwise noted. ABSOLUTE MAX RATINGS A/J Parameter Power Supply B L Units Min Typ Max Min Typ Max Min Typ Max ±13.5 ±15 ±22 * * * * * * V +70 * * * * °C Operating Temperature (A,B) 0 Operating Temperature (J,L) -40 +85 * * * * °C Storage Temperature -65 +150 * * * * °C * °C Short Circuit Protection Continuous Soldering Temperature (10 sec max) * +260 * * ELECTRICAL SPECIFICATIONS A/J Parameter Min Output Voltage Initial Error Typ B Max Min ±10.0 1 Typ Typ Max * 2 1.0 Tracking Error 3 Min ±2.00 1 TMIN - TMAX 2 Max * ±1.60 Warmup Drift L Units V ±2.20 3 2.0 mV ppm 2.2 ppm/°C 0.5 0.7 1.0 mV Long-Term Stability 6 * * ppm/ 1000hr s Noise (0.1 - 10Hz) 6 * * µVpp ppm/V Output Current ±10 * mA Line Regulation 3 * * Load Regulation 3 * * 4 7 * * mA Power Supply Current, -PS 4 4 * * mA Power Supply Current, +PS ppm/ mA 1. The specified values are without external trim. 2. The temperature coefficient (TC) is determined by the box method using the following formula: V MAX – V MIN 6 TC = ----------------------------------------------------------------------  10 V NOMINAL   T MAX – T MIN  3. The tracking error is the deviation between the positive and negative output over the operating temp. range. 4. The specified values are unloaded. Note: * Same as A/J Models VRE410DS Rev K 3 VRE410 TYPICAL PERFORMANCE GRAPHS Figure 2: VOUT vs. Temperature (VRE410AS) 2 2 1.5 1.5 1 0.5 0 -0.5 Lower Limit -1 0.5 0 -0.5 -1 -1.5 -1.5 -2 -2 0 10 20 30 40 Upper Limit 1 Upper Limit ѐVOUT (mV) ѐVOUT (mV) Figure 3: VOUTvs. Temperature (VRE410BS) 50 60 70 Lower Limit 0 10 Temperature (°C) 4 3 3 ѐVOUT (mV) ѐVOUT (mV) 0 -1 Lower Limit 35 Temperature (°C) 4 70 Upper Limit 1 0 -1 -3 -10 60 -2 -3 -15 50 2 Upper Limit 1 -4 -40 40 Figure 5: VOUT vs. Temperature (VRE410LS) 4 -2 30 Temperature (°C) Figure 4: VOUT vs. Temperature (VRE410JS) 2 20 60 85 -4 -40 Lower Limit -15 -10 35 60 85 Temperature (°C) VRE410DS Rev K VRE410 POSITIVE OUTPUT (TYP) Figure 6: Quiescent Current vs. Temperature Figure 7: Junction Temp Rise vs. Output Current 40 :ƵŶĐƟŽŶdĞŵƉĞƌĂƚƵƌĞ ZŝƐĞďŽǀĞŵďŝĞŶƚ Quiescent Current (mA) 7.0 6.0 5.0 4.0 0 -50 0 50 30 5V 20 10 0 100 Temperature (°C) =1 V CC 0 2 4 6 8 10 Output Current (mA) Figure 8: PSRR vs. Frequency 120 100 PSRR (dB) 80 60 40 20 0 10 100 1k 10k 100k 1M 10M Frequency (Hz) VRE410DS Rev K 5 VRE410 NEGATIVE OUTPUT (TYP) Figure 9: Quiescent Current vs. Temperature Figure 10: Junction Temp Rise vs. Output Current 40 6.0 :ƵŶĐƟŽŶdĞŵƉĞƌĂƚƵƌĞ ZŝƐĞďŽǀĞŵďŝĞŶƚ Quiescent Current (mA) 7.0 5.0 4.0 30 5V 20 10 0 0 -50 0 50 100 =1 V ee 0 2 4 6 8 10 Output Current (mA) Temperature (°C) Figure 11: PSRR vs. Frequency 120 100 PSRR (dB) 80 60 40 20 0 10 100 1k 10k 100k 1M 10M Frequency (Hz) 6 VRE410DS Rev K VRE410 BLOCK DIAGRAM Figure 12: Block Diagram VOUT VOUT THEORY OF OPERATION The following discussion refers to the block diagram in Figure 12. In operation, approximately 6.3V is applied to the noninverting input of the op amp. The voltage is amplified by the op amp to produce a 10V output. The gain is determined by the networks R1 and R2: G=1 + R2/R1. The 6.3V Zener diode is used because it is the most stable diode over time and temperature. The Zener operating current is derived from the regulated output voltage through R3. This feedback arrangement provides a closely regulated Zener current. This current determines the slope of the references’ voltage vs. temperature function. By trimming the Zener current a lower drift over temperature can be achieved. But since the voltage vs. temperature function is nonlinear this compensation technique is not well suited for wide temperature ranges. A nonlinear compensation network of thermistors and resistors is used in the VRE series voltage references. This proprietary network eliminates most of the nonlinearity in the voltage vs. temperature function. By then adjusting the slope, a very stable voltage is produced over wide temperature ranges. The VRE400 series voltage references have the ground terminal brought out on two pins (pin 6 and 7) which are connected together internally. This allows the user to achieve greater accuracy when using a socket. Voltage references have a voltage drop across their power supply ground pin due to quiescent current flowing through the contact resistance. If the contact resistance was constant with time and temperature, this voltage drop could be trimmed out. When the reference is plugged into a socket, this source of error can be as high as 20ppm. By connecting pin 7 to the power supply ground and pin 6 to a high impedance ground point in the measurement circuit, the error due to the contact resistance can be eliminated. If the unit is soldered into place the contact resistance is sufficiently small that it doesn’t effect performance. VRE410DS Rev K 7 VRE410 PIN CONFIGURATION Figure 13: Pin Configuration PS 8 PS VRE410DS Rev K VRE410 PACKAGE OPTIONS Part Number Apex Package Style Description VRE410AS GE 14-pin SMT DIP VRE410BS GE 14-pin SMT DIP VRE410JS GE 14-pin SMT DIP VRE410LS GE 14-pin SMT DIP PACKAGE STYLE GE ϲ͘ƉŽdžLJƐĞĂůĞĚ͕ŶŽŶͲŚĞƌŵĞƟĐƉĂĐŬĂŐĞ VRE410DS Rev K 9 VRE410 NEED TECHNICAL HELP? CONTACT APEX SUPPORT! For all Apex Microtechnology product questions and inquiries, call toll free 800-546-2739 in North America. For inquiries via email, please contact apex.support@apexanalog.com. International customers can also request support by contacting their local Apex Microtechnology Sales Representative. To find the one nearest to you, go to www.apexanalog.com IMPORTANT NOTICE Apex Microtechnology, Inc. has made every effort to insure the accuracy of the content contained in this document. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (expressed or implied). Apex Microtechnology reserves the right to make changes without further notice to any specifications or products mentioned herein to improve reliability. This document is the property of Apex Microtechnology and by furnishing this information, Apex Microtechnology grants no license, expressed or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Apex Microtechnology owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Apex Microtechnology integrated circuits or other products of Apex Microtechnology. 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