NJM4151D

NJM4151 V-F / F-V CONVERTOR ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE The NJM4151 provide a simple low-cost method of A/D conversion. They have all the inherent advantages of the voltage-to-frequency conversion technique. The Output of NJM4151 is a series of pulses of constant duration. The frequency of the pulses is proportional to the applied input voltage. These converters are designed for use in a wide range of data conversion and remote sensing applications. NJM4151D ■ FEATURES  Operating Voltage (8V to 22V)  Frequency Operation from (1.0Hz to 100kHz)  Package Outline DIP8, DMP8  Bipolar Technology ■ PIN CONFIGURATION (Top View) NJM4151D NJM4151M PIN FUNCTION 1.Io (Current Source) 2.RS (Scale Factor) 3.VLO (Logic Output) 4.GND 5.Ro (One-Shot R,C) 6.Th (Threshold) 7.VI (Input Voltage) 8.V+ ■ EQUIVALENT CIRCUIT NJM4151M V+ Q36 Q37 Q28 Q41 IO RS Th VI Q35 10k R1 Q34 5K R2 Q33 Q27 R13 20k Q26 R14 20k Q25 Q1 Q2 Q3 Q4 VLOQ32 Q31 Q30 Q40 R6 Q24 2K R7 Q23 2K R8 Q22 2K R9 Q21 2K R15 20K Q29 Q42 Q38 R16 12K Q39 Q43 Q13 Q14 Q12 V+ R3 Q15 R10 Q20 R4 2K Q5 Q6 Q7 R11 R12 Q8 2K Q9 Q11 Q10 Q17 Q16 Q18 Q19 R5 2K RO GND Ver.2019-09-26 -1- NJM4151 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Supply Voltage V+ Output Sink Current ISINK Power Dissipation PD Input Voltage VI Operating Temperature Range Topr Storage Temperature Range Tstg RATINGS 22 20 (DIP8) 500 (DMP8) 300 -0.2 to V+ -40 to + 8...