KA331

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Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. www.fairchildsemi.com KA331 V-F Converter Features Description • • • • • This voltage to frequency converter provides the output pulse train at a frequency precisely proportional to the applied input voltage. The KA331 can operate at power supplies as low as 4.0V and be changed output frequency from 1Hz to 100KHz. It is ideally suited for use in simple low-cost circuit for analog-to digital conversion, long term integration, linear frequency modulation or demodulation, frequency-to-voltage conversion, and many other functions. Guaranteed linearity: 0.01% max. Low power dissipation: 15mW at 5V Wide range of full scale frequency: 1Hz to 100KHz Pulse output compatible with all logic forms Wide dynamic range: 100dB min at 10KHz full scale frequency 8-DIP 1 Internal Block Diagram Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation KA331 Absolute Maximum Ratings (TA = 25°°C) Parameter Symbol Supply Voltage Input Voltage Operating Temperature Range Power Dissipation Value Unit VCC 40 V VI -0.2 ~ + VCC V TOPR 0 ~ +70 °C PD 500 mW Electrical Characteristics Symbol Conditions VFC Non-Linearity Parameter VFCNL 4.5 ≤ VCC ≤ 20V Conversion Accuracy Scale Factor ACCUR Chang Of Gain With VCC Rated Full - Scale Frequency VCC∆G/VCC f Min. Typ. Max. Unit - ±0.003 ±0.01 % Full-Scale VI = -10V, RS = 14KΩ 0.90 1.00 1.10 KHz/V 4.5V ≤ VCC ≤ 10V - 0.01 0.1 %/V 10V ≤ VCC ≤ 40V - 0.006 0.06 10.0 - - KHz - ±3 ±10 mV VI = -10V INPUT COMPARATOR Offset Voltage Bias Current Offset Current Common-Mode Range VIO 0°C ≤ TA ≤ +70°C IBIAS - - -80 -300 nA IIO - - ±8 ±100 nA -0.2 - VCC-2.0 V 0.701 ×VCC ±10 ±100 nA VCM 0°C ≤ TA ≤ +70°C TIMER (PIN 5) - 0.63 0.667 Timer Threshold Voltage VTH Input Bias Current IBIAS VCC = 15V, 0V ≤ V5 ≤ 9.9V V5 = 10V - 200 1000 nA Saturation Voltage VSAT I = 5mA - 0.22 0.5 V 116 136 156 µA - 0.2 1.0 µA - CURRENT SOURCE (PIN 1) Output Current Change with Voltage Current Source Off Leakage IO ∆IO/∆V1 RS = 14KΩ, V1 = 0V 0V ≤ V1≤ 10V ILKG - - 0.02 10.0 nA VREF - 1.70 1.89 2.08 VDC Stability vs Temperature STT - - ±60 - ppm/°C Stability vs Time, 1000Hours STT - - ±0.1 - % I = 5mA - 0.15 0.50 I = 3.2mA - 0.10 0.40 - ±0.05 1.0 REFERENCE VOLTAGE (PIN 2) Reference Voltage LOGIC OUTPUT (Pin 3) Saturation Voltage VSAT Off Leakage ILKG - V µA SUPPLY CURRENT Supply Current 2 ICC VCC = 5V 1.5 3.0 6.0 VCC = 40V 2.0 4.0 8.0 mA KA331 Typical Applications Figure 1. Precision Voltage-to-Frequency Converter, 100KHz Full-Scale Figure 2. Simple Frequency-to-Voltage Converter, 10KHz Full-Scale Figure 3. Light Intensity to Frequency Converter 3 KA331 Mechanical Dimensions Package Dimensions in millimeters 1.524 ±0.10 #5 2.54 0.100 5.08 MAX 0.200 7.62 0.300 3.40 ±0.20 0.134 ±0.008 +0.10 0.25 –0.05 +0.004 0~15° 4 0.010 –0.002 3.30 ±0.30 0.130 ±0.012 0.33 MIN 0.013 0.060 ±0.004 #4 0.018 ±0.004 #8 9.60 MAX 0.378 #1 9.20 ±0.20 0.362 ±0.008 ( 6.40 ±0.20 0.252 ±0.008 0.46 ±0.10 0.79 ) 0.031 8-DIP KA331 Ordering Information Product Number Package Operating Temperature KA331 8-DIP 0 ~ + 70°C 5 KA331 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 5/22/01 0.0m 001 Stock#DSxxxxxxxx  2001 Fairchild Semiconductor Corporation ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. 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