hi7131 Intersil Corporation, hi7131 Datasheet
hi7131
Related parts for hi7131
hi7131 Summary of contents
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... The HI7131 and HI7133 are supplied lead plastic DIP and a 44 lead metric plastic quad flatpack package. Ordering Information PART NO ...
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... BUFF INT (TENS (100’ BP/GND 3-1827 HI7131CM44, HI7133CM44 (MQFP) TOP VIEW BPGND 28 POL 27 AB4 ...
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... Low leakage capacitors AZ REF IN HI7131, HI7133 A-Z V+ OSC1 BUFF OSC2 INT OSC3 REF REF REF HI COMMON REF LO V- FIGURE 89. TYPICAL APPLICATION CIRCUIT HI7131, HI7133 DUT 40 V+ OSC OSC OSC TEST REF VREF 35 ...
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... COMMON Pin Voltage Temperature 10V (Notes 5, 8) Coefficient COMMON Pin Sink Current +0.1V Change on V COMMON Pin Source Current -0.1V Change on V HI7131, HI7133 Thermal Information Thermal Resistance (Typical, Note 3) PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150 Maximum Storage Temperature Range . . . . . . . . . .-65 ...
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... Electrical Specifications (Notes Full Scale Range (FSR) = 200.0mV, Unless Otherwise Specified (Continued) PARAMETER DISPLAY DRIVER (HI7131) Peak-To-Peak Segment Drive Voltage 10V Peak-To-Peak Backplane Drive Volt- age POWER SUPPLY (Nominal Supply Voltage 10V) Supply Current (Does Not Include ...
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... Typical Integrator Amplifier Output Waveform (INT Pin) INTEGRATOR VOLTAGE SWING AUTO-ZERO PHASE SIGNAL INTEGRATE 100 COUNTS OR PHASE FIXED 990 - 2990 COUNTS 1000 COUNTS NOTE: 1 Count = 1 Clock Cycle = 4 Oscillator Cycles. HI7131, HI7133 • INTEGRATING RESISTOR INT INFS • INTEGRATING CAPACITOR (Typ) = 48kHz ...
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... OSC3 39 6 OSC2 40 7 OSC1 HI7131, HI7133 FUNCTION Supply Power Supply. Output Driver Pin for Segment “D” of the display units digit. Output Driver Pin for Segment “C” of the display units digit. Output Driver Pin for Segment “B” of the display units digit. ...
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... HI7131, HI7133 Theory of Operation The HI7131 and HI7133 are dual-slope integrating type A/D converters. As the name implies, its output represents the integral or average of the input signal. A basic block diagram of a dual-slope integrating converter is shown in Figure 3. A conventional conversion cycle has two distinct phases: First, the input signal is integrated for a fi ...
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... Display Reading V REF It can be seen that the output reading of the ADC is only proportional to the ratio of V over V IN REF also demonstrates that for the maximum display reading (i.e., 1999) we will have V = 1.999 V IN HI7131, HI7133 C INT - - + + INTEGRATOR COMPARATOR CONTROL LOGIC f CLK CLOCK ...
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... AZ ZI AND ZI The circuit configuration of the HI7131 results in a superior 120dB rejection of DC common mode on the inputs. How- ever, the HI7131 has reduced AC common mode noise rejection, since the noise on the INLO input can cause errors during the deintegration phase. ...
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... and IN HI are reversed, this indication can be reversed also, if desired. The HI7131 is a direct display drive (versus multiplexed) and each segment in each digit has its own segment driver. The display font and the segment assignment on the display are also shown in Figure 6 ...
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... ONE INVERTER SHOWN FOR CLARITY 40 OSC 1 HI7133 TYPICAL SEGMENT OUTPUT + V POLARITY 0.5mA TO SEGMENT 8mA GND FROM COMPARATOR OUTPUT † THREE INVERTERS ONE INVERTER SHOWN FOR CLARITY 40 OSC 1 HI7131, HI7133 LCD PHASE DRIVER 7 SEGMENT SEGMENT DECODE DECODE LATCH 1000’ ...
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... HI7131, HI7133 The total length of a conversion cycle is equal to 4000 counts and is independent of the input signal magnitude or full scale range. Each phase of the conversion cycle has the ...
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... If there is a large common mode voltage, the reference capacitor can gain charge (increase voltage) when called upon to deintegrate a HI7131, HI7133 positive signal but lose charge (decrease voltage) when called up to deintegrate a negative input signal. This change in reference for positive or negative input voltage will give a rollover error ...
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... Different types of capacitors are adequate for this applica- tion; polypropylene capacitors provide undetectable errors at reasonable cost and size. The absolute value of C not have any effect on accuracy. HI7131, HI7133 Auto-Zero Capacitor (C The value of the auto-zero capacitor has some influence guide- ...
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... The value of resistors on both circuit depends on the con- verter input voltage range. Refer to “Typical Applications” section for various schemes. Typical Applications The HI7131 and HI7133 A/D Converters may be used in a wide variety of configurations. The following application V+ V+ HI7131/33 ...
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... BP/GND tied to supply GND establishing the correct common-mode voltage. COMMON acts as a pre-regulator for the reference. Values shown are for 1 reading/sec. FIGURE 101. HI7131 AND HI7133 WITH AN EXTERNAL BAND-GAP REFERENCE (1.2V TYPE) OSC 1 OSC 2 OSC 3 SET V REF TEST = 1V REF HI ...
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... Typical Applications (Continued) The resistor values within the bridge are determined by the desired sensitivity. FIGURE 104A. HI7131 AND HI7133 MEASURING RATIOMETRIC VALUES OF QUAD LOAD CELL The LM339 is required to ensure logic compatibility with heavy dis- play loading. O /RANGE U /RANGE CD4023 OR 74C10 FIGURE 104B. CIRCUIT FOR DEVELOPING UNDERRANGE AND OVERRANGE SIGNALS FROM HI7133 OUTPUTS ...
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... The sensor should then be placed in boiling water and the scale-factor potentiometer adjusted for a 100.0 reading. See AD590 data sheets for alternative circuits. FIGURE 105A. HI7131 AND HI7133 USED AS A DIGITAL CENTIGRADE THERMOMETER SCALE FACTOR ADJUST (V > ...
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... Test is used as a common-mode reference level to ensure compatibility with most op amps. FIGURE 106 CONVERTER WITH HI7131 AND HI7133 O /RANGE U /RANGE CD4023 OR 74C10 FIGURE 107. CIRCUIT FOR DEVELOPING UNDERRANGE AND OVERRANGE SIGNALS FROM HI7131 OUTPUTS HI7131, HI7133 10 F SCALE FACTOR ADJUST (V = 100mV FOR AC TO RMS) ...
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... No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see web site http://www.intersil.com HI7131, HI7133 PASSIVATION: Type: PSG Nitride Thickness: 15k WORST CASE CURRENT DENSITY A/cm HI7131, HI7133 ...