MAX932 Maxim, MAX932 Datasheet
MAX932
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MAX932 Summary of contents
Page 1
... MAX931-MAX934 minimize parasitic feedback, which makes them easier to use. The single MAX931 and dual MAX932/MAX933 provide a unique and simple method for adding hysteresis without feedback and complicated equations, using the HYST pin and two resistors ...
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... Voltage, REF ....................................(V+ + 0.3V) to (V- – 0.3V) Voltage, OUT_ (MAX931/934) .....(V+ + 0.3V) to (GND – 0.3V) Voltage, OUT_ (MAX932/933)..........(V+ + 0.3V) to (V- – 0.3V) OUT_ Short-Circuit Duration (V+ ≤ 5.5V) ...............Continuous Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...
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... A MAX932, HYST = REF C/E temp. ranges IN+ = (IN- + 100mV +25°C A MAX933, HYST = REF C/E temp. ranges T = +25°C A MAX934 C/E temp. ranges V = 1.5V CM IN+ = IN- = 1.5V, C/E temp. ranges MAX931, MAX932, MAX933 MIN TYP MAX UNITS V+ – 0 0.4 V GND + 0.4 1.158 1.182 1.206 V 1.147 1.217 15 25 µ µ ...
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... REFERENCE Reference Voltage Source Current Sink Current Voltage Noise 4 _______________________________________________________________________________________ , unless otherwise noted.) MAX CONDITIONS V- to (V+ – 1.3V 2.5V to 11V 100Hz to 100kHz MAX931, MAX932, MAX933 Overdrive = 10mV T = +25°C, 100pF load A Overdrive = 100mV C/E temp. ranges 10mA OUT MAX932, MAX933 C/E temp. ranges 0.8mA ...
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... OUTPUT LOAD CURRENT 1.190 SINK 1.185 1.180 SOURCE 1.175 1.170 1.165 1.160 1.155 OUTPUT LOAD CURRENT ( A) MAX932 SUPPLY CURRENT vs. TEMPERATURE 5.0 IN+ = IN- +100mV 4 3.5 3 2.0 140 -60 - 100 TEMPERATURE ( C) MAX934 SUPPLY CURRENT vs. LOW SUPPLY VOLTAGES ...
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Ultra Low-Power, Low-Cost Comparators with 2% Reference ____________________________Typical Operating Characteristics (continued) ( GND +25°C, unless otherwise noted.) A HYSTERESIS CONTROL 80 60 OUTPUT HIGH CHANGE -20 -40 OUTPUT LOW -60 ...
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... Descriptions PIN MAX931 MAX932 MAX933 1 – – – – – – – – – 4 – – – – – – PIN NAME MAX934 1 OUTB 2 OUTA INA- 5 INA+ 6 INB- 7 INB+ ...
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... Operating the MAX931 and MAX934 at ±5V provides TTL/CMOS compatibility when monitoring bipolar input signals. TTL compatibility for the MAX932 and MAX933 is achieved by operation from a single +5V supply. The guaranteed minimum operating voltage is 2.5V (or ±1.25V). As the total supply voltage is reduced below 2 ...
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... The negative supply does not affect the output swing, and can range from 0V to -5V ±10%. The MAX932 and MAX933 do not have a GND pin, and their outputs swing from V+ to V-. Connect V- to ground and +5V supply to achieve TTL compatibility. ...
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... (mV) HB When hysteresis is obtained in this manner for the MAX932/MAX933, the same hysteresis applies to both comparators. Hysteresis (MAX934) Hysteresis can be set with two resistors using positive feedback, as shown in Figure 4. This circuit generally draws more current than the circuits using the HYST pin on the MAX931/MAX932/MAX933, and the high feedback impedance slows hysteresis ...
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... The design procedure is as follows: 1. Choose the required hysteresis level and calculate values for R4 and R5 according to the formulas in the Hysteresis (MAX931/MAX932/MAX933) section. In this example, ±5mV of hysteresis has been added at the comparator input (V that the hysteresis apparent at V because of the input resistor divider. ...
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... TTL signals. The 10kΩ resistors protect the comparator inputs, and do not materially affect the 1 operation of the circuit. 1 Figure 9 shows the MAX932 monitoring an input voltage in two steps. When V LOW and FAIL thresholds, outputs are high. Threshold calculations are similar to those for the window- detector application. ...
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... Figure 8. Level Shifter: ±5V Input to CMOS Output ______________________________________________________________________________________ Ultra Low-Power, Low-Cost Comparators with 2% Reference 0 FOR V < 0V INA 1 FOR V > 0V OUTA INB R3 R2 OUTB OUTC R1 REF N.C. Figure 9. Two-Stage Low-Voltage Detector V + INA+ INPUT VOLTAGE FAIL REF R5 HYST R4 INPUT VOLTAGE LOW INB+ MAX932 V- 13 ...
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... MAX934ESE HYST For similar devices guaranteed over the military temp. range, see the MAX921-MAX924 data sheet. The MAX931, MAX933, and MAX934 are pin-compatible with the 1% accurate MAX921, MAX923, and MAX924, respectively. The MAX932 and MAX922 are not pin-compatible. OUTB V+ REF HYST ...
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Information ______________________________________________________________________________________ Ultra Low-Power, Low-Cost Comparators with 2% Reference 15 ...
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... Comparators with 2% Reference __________________________________________Package Information (continued) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © ...