 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| www.fairchildsemi.com LM331 V-F Converter Features * * * * * 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 Description This voltage to frequency converter provides the output pulse train at a frequency precisely proportional to the applied input voltage. The LM331 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. 8-DIP 1 Internal Block Diagram Rev. 1.0.0 (c)2001 Fairchild Semiconductor Corporation LM331 Absolute Maximum Ratings (TA = 25C) Parameter Supply Voltage Input Voltage Operating Temperature Range Power Dissipation Symbol VCC VI TOPR PD Value 40 -0.2 ~ + VCC 0 ~ +70 500 Unit V V C mW Electrical Characteristics Parameter VFC Non-Linearity Conversion Accuracy Scale Factor Chang Of Gain With VCC Rated Full - Scale Frequency INPUT COMPARATOR Offset Voltage Bias Current Offset Current Common-Mode Range TIMER (PIN 5) Timer Threshold Voltage Input Bias Current VTH IBIAS VCC = 15V, 0V V5 9.9V V5 = 10V Saturation Voltage CURRENT SOURCE (PIN 1) Output Current Change with Voltage Current Source Off Leakage REFERENCE VOLTAGE (PIN 2) Reference Voltage Stability vs Temperature Stability vs Time, 1000Hours LOGIC OUTPUT (Pin 3) Saturation Voltage Off Leakage SUPPLY CURRENT Supply Current ICC VCC = 5V VCC = 40V 1.5 2.0 3.0 4.0 6.0 8.0 mA VSAT ILKG I = 5mA I = 3.2mA 0.15 0.10 0.05 0.50 0.40 1.0 V A VREF STT STT 1.70 1.89 60 0.1 2.08 VDC ppm/C % IO IO/V1 ILKG RS = 14K, V1= 0V 0V V1 10V 116 136 0.2 0.02 156 1.0 10.0 A A nA VSAT I = 5mA 0.63 0.667 10 200 0.22 0.701 100 1000 0.5 xVCC nA nA V VIO IBIAS IIO VCM 0C TA +70C 0C TA +70C -0.2 3 -80 8 10 -300 100 VCC2.0 mV nA nA V Symbol VFCNL ACCUR VCCG/VCC f Conditions 4.5 VCC 20V 4.5V VCC 10V 10V VCC 40V VI = -10V Min. 10.0 Typ. 1.00 0.01 0.006 Max. 1.10 0.1 0.06 KHz Unit KHz/V %/V 0.003 0.01 % Full-Scale VI = -10V, RS = 14K 0.90 2 LM331 Typical Applications LM331 Figure 1. Precision Voltage-to-Frequency Converter, 100KHz Full-Scale LM331 Figure 2. Simple Frequency-to-Voltage Converter, 10KHz Full-Scale LM331 Figure 3. Light Intensity to Frequency Converter 3 LM331 Mechanical Dimensions Package Dimensions in millimeters 8-DIP 1.524 0.10 0.018 0.004 0.060 0.004 0.46 0.10 6.40 0.20 0.252 0.008 0.79 ) 0.031 #8 9.20 0.20 0.362 0.008 9.60 MAX 0.378 #5 2.54 0.100 5.08 MAX 0.200 7.62 0.300 3.40 0.20 0.134 0.008 3.30 0.30 0.130 0.012 0.33 MIN 0.013 #1 #4 0.25 -0.05 0~15 +0.10 0.010 -0.002 +0.004 4 ( LM331 Ordering Information Product Number LM331N Package 8-DIP Operating Temperature 0 ~ + 70C 5 LM331 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. www.fairchildsemi.com 5/22/01 0.0m 001 Stock#DSxxxxxxxx 2001 Fairchild Semiconductor Corporation 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. |
Price & Availability of LM331
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |