MAX922 Maxim, MAX922 Datasheet
MAX922
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MAX922 Summary of contents
Page 1
... These comparators draw less than 4µA supply current over temperature (MAX921/MAX922), and include an internal 1.182V ±1% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current. Ideal for single-supply applications, the MAX921– ...
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... Voltage, REF ....................................(V+ + 0.3V) to (V- – 0.3V) Voltage, OUT_ (MAX921/924) .....(V+ + 0.3V) to (GND – 0.3V) Voltage OUT_ (MAX922/923)...........(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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... C/E temp. ranges M temp. range 100Hz to 100kHz , unless otherwise noted.) MAX CONDITIONS T = +25°C A MAX921 C/E temp. ranges M temp. range T = +25°C A MAX922 C/E temp. ranges M temp. range HYST = REF, IN+ = (IN- + 100mV +25°C A MAX923 C/E temp. ranges M temp. range T = +25°C A MAX924 C/E temp. ranges M temp ...
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... V+ = 2.5V to 11V 100Hz to 100kHz MAX921, MAX923 Overdrive = 10mV T = +25°C, 100pF load A Overdrive = 100mV C/E temp. ranges 10mA; OUT MAX92_ M temp. range 6mA OUT MAX922/ C/E temp. ranges 0.8mA; OUT MAX923 M temp. range 0.6mA OUT MAX921/ C/E temp. ranges 0.8mA; OUT MAX924 M temp. range 0.6mA OUT C temp ...
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... TEMPERATURE (°C) TRANSFER FUNCTION 5.0 4.5 100k V 0 4.0 10μF 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -0.3 -0.1 0.1 50 -0.2 0 IN+ INPUT VOLTAGE (mV) Ultra Low-Power, MAX922 SUPPLY CURRENT vs. TEMPERATURE 4.5 IN+ = (IN- + 100mV) 4.0 3 10V 3 1.5 140 -60 - TEMPERATURE (°C) MAX924 SUPPLY CURRENT vs. LOW SUPPLY VOLTAGES 10 1 0.1 0.01 140 1.0 1.5 2 ...
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... RESPONSE TIME (μs) MAX924 RESPONSE TIME AT LOW SUPPLY VOLTAGES 100 SOURCE CURRENT INTO 0.75V LOAD 10 1 SINK CURRENT 0.4V OUT 0.1 1.0 1.5 2.0 SINGLE-SUPPLY VOLTAGE (V) ____________________________________________________________Pin Descriptions PIN NAME MAX921 MAX922 MAX923 1 – – GND – OUTA – – – INA+ 4 – ...
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... Descriptions (continued) PIN MAX921 MAX922 MAX923 – – – 6 – 6 – – – – PIN NAME MAX924 1 OUTB 2 OUTA INA- 5 INA+ 6 INB- 7 INB+ 8 REF INC- 11 INC+ 12 IND- 13 IND+ 14 GND 15 OUTD 16 OUTC _______________________________________________________________________________________ Single/Dual-Supply Comparators ...
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... Operating the MAX921 and MAX924 at ±5V provides TTL/CMOS compatibility when monitoring bipolar input signals. TTL compatibility for the MAX922 and MAX923 is achieved by operation from a single +5V supply. Low-Voltage Operation (MAX924 Only) The guaranteed minimum operating voltage is 2.5V (or ± ...
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... GND, so TTL compatibility is assured by using a +5V ±10% supply. The negative supply does not affect the output swing, and can range from 0V to -5V ±10%. The MAX922 and MAX923 have no 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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... HB When hysteresis is obtained in this manner for the MAX923, the same hysteresis applies to both comparators. Hysteresis (MAX922/MAX924) 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 MAX921 and MAX923, and the high ...
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... OUT 8 IN+ falling. VBATT -0.15V 10mA The RC time constant determines the maximum power- on time of the OUT pin before power-down occurs. This period can be approximated by: For example: 2MΩ x 10µF x 4.6 = 92sec. The actual time will vary with both the leakage current of the capacitor and the voltage applied to the circuit ...
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Ultra Low-Power, Single/Dual-Supply Comparators 2. Select R1. The leakage current into INB- is normally under 1nA, so the current through R1 should exceed 100nA for the thresholds to be accurate. R1 values up to about 10MΩ can be used, but ...
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MAX924 1.182V 8 REF V- 5 INA+ 182k OUTA 1V 4 INA- 7 INB+ 250k OUTB INB- 750mV 6 11 INC+ 250k OUTC 500mV 10 INC- 13 IND+ 250k OUTD 250mV 12 IND- GND 250k ...
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... INB REF 8 9 DIP/Narrow SO 14 ______________________________________________________________________________________ _Ordering Information (continued) PART MAX921MSA/PR MAX921MSA/PR-T OUT MAX922CPA V+ MAX922CSA REF MAX922CUA HYST MAX922C/D MAX922EPA MAX922ESA MAX922MJA OUTB MAX922MSA/PR V+ MAX922MSA/PR-T INB+ MAX923CPA MAX923CSA INB- MAX923CUA MAX923C/D MAX923EPA MAX923ESA OUTB MAX923MJA V+ MAX923MSA/PR REF MAX923MSA/PR-T HYST MAX924CPE ...
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... Topographies MAX921/MAX922/MAX923 0.059" (1.50mm) DIE PAD MAX921 MAX922 1 GND OUTA IN+ INA+ 5 IN- INA- 6 HYST INB- 7 REF INB OUT OUTB TRANSISTOR COUNT: 164 SUBSTRATE CONNECTED TO V+ ______________________________________________________________________________________ Single/Dual-Supply Comparators OUTA 0.075" ...
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... Ultra Low-Power, Single/Dual-Supply Comparators For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 8 Plastic DIP 16 Plastic DIP µMAX 8 CERDIP 16 CERDIP 16 ______________________________________________________________________________________ Package Information PACKAGE CODE P8-1 P16-1 S8-2 S16-3 U8-1 J8-1 J16-3 DOCUMENT NO. 21-0043 21-0043 21-0041 21-0041 21-0036 ...
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... Updated Ordering Information 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © ...