MAX924 Maxim, MAX924 Datasheet
MAX924
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MAX924 Summary of contents
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... TTL/CMOS outputs that sink and source current. Ideal for single-supply applications, the MAX921–MAX924 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator’s input voltage range swings from the negative supply rail to within 1 ...
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... MAX922 C/E temp. ranges M temp. range IN+ = IN- + 100mV T = +25°C A MAX923, C/E temp. ranges HYST = REF M temp. range T = +25°C A MAX924 C/E temp. ranges M temp. range V = 2.5V CM C/E temp. ranges IN+ = IN- = 2.5V M temp. range MAX921, MAX923 V- to (V+ – 1.3V 2.5V to 11V 100Hz to 100kHz MAX921, MAX923 Overdrive = 10mV T = +25° ...
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... Output High Voltage Output Low Voltage X REFERENCE (MAX921/MAX923/MAX924 ONLY) Reference Voltage Source Current Sink Current Voltage Noise Note 1: MAX924 comparators work below 2.5V, see Low-Voltage Operation section for more details. ELECTRICAL CHARACTERISTICS: 3V OPERATION ( GND = 0V MIN PARAMETER POWER REQUIREMENTS ...
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... 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. range E temp. range M temp. range T = +25°C A C/E temp. ranges M temp. range T = +25°C A C/E temp. ranges M temp ...
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... 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 2.0 SINGLE-SUPPLY VOLTAGE (V) RESPONSE TIME vs. LOAD CAPACITANCE OHL 12 10 ...
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... Comparator A output. Sinks and sources current. Swings from V+ to V-. V- Negative supply. Connect to ground for single-supply operation (MAX921). IN+ Noninverting comparator input Noninverting input of comparator A IN- Inverting comparator input Inverting input of comparator A MAX924 RESPONSE TIME AT LOW SUPPLY VOLTAGES 10 1 ±20mV OVERDRIVE 0.1 ±100mV OVERDRIVE 0. ...
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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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... It also produces faster hysteresis action and consumes much less current than circuits using external positive feedback. Power-Supply and Input Signal Ranges This family of devices operates from a single +2.5V to +11V power supply. The MAX921 and MAX924 have a MAX922 OUTA 1 2 ...
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... Figure 2. Threshold Hysteresis Band about 2.2V, although the comparators will continue to operate with a total supply voltage as low as 1V. While the MAX924 has comparators that may be used at supply voltages below 2V, the MAX921, MAX922, and MAX923 may not be used with supply voltages sig- nificantly below 2.5V. ...
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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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... V INB 1 330Ω V INC 16 330Ω V IND 15 330Ω Figure 8. Level Shifter: ±5V Input to CMOS Output Ultra Low-Power, +5V V+ MAX924 10k INA+ OUTA 0 FOR V 1 FOR V INA- 10k INB+ OUTB INB- 10k INC+ OUTC INC- 10k IND+ OUTD IND- REF N ...
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... MAX923C/D MAX923EPA MAX923ESA OUTB MAX923MJA V+ MAX923MSA/PR REF MAX923MSA/PR-T HYST MAX924CPE MAX924CSE MAX924C/D MAX924EPE OUTC MAX924ESE MAX924MJE OUTD MAX924MSE/PR GND MAX924MSE/PR-T IND+ *Dice are tested at T IND- **Contact factory for availability. INC+ INC- V- TEMP RANGE PIN-PACKAGE -55°C to +125°C 8 SO** -55°C to +125°C 8 SO** 0° ...
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... OUTA 0.075" (1.91mm INA- INA+ INB- MAX923 OUTA V- V- INA+ TRANSISTOR COUNT: 267 INB- SUBSTRATE CONNECTED TO V+ HYST REF V+ V+ OUTB Ultra Low-Power, MAX924 OUTB OUTC OUTD GND (2.74mm) IND+ IND- INC+ INB+ REF V- INC- 0.069" (1.75mm) 0.108" 15 ...
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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 © ...