Not Recommended for New Designs The MAX909 was manufactured for Maxim by an outside wafer foundry using a process that is no longer available. It is not recommended for new designs. A Maxim replacement or an industry second-source may be available. The data sheet remains available for existing users. The other parts on the following data sheet are not affected. For further information, please see the QuickView data sheet for this part or contact technical support for assistance.
19-0129; Rev 7; 1/06 Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators The MAX907/MAX908/MAX909 are dual/quad/single, high-speed, ultra-low-power voltage comparators designed for use in systems powered from a single +5V supply; the MAX909 also accepts dual ±5V supplies. Their 40ns propagation delay (with 5mV input overdrive) is achieved with a power consumption of only 3.5mW per comparator.
MAX907/MAX908/MAX909 Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators ABSOLUTE MAXIMUM RATINGS Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) . . . 727mW 8-Pin SO (derate 5.88mW/°C above +70°C) . . . . . . . . . . . 471mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) . . . 800mW 14-Pin SO (derate 8.33mW/°C above +70°C) . . . . . . . . . . 667mW Operating Temperature Ranges: MAX90_C_ _ . . . . . . . . . . . . . . . . . . . . . . .
Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators MAX907/MAX908/MAX909 ELECTRICAL CHARACTERISTICS (continued) (V+ = 5V, TA = +25°C; MAX909 only: V- = 0V, VLATCH = 0V; unless otherwise noted.
MAX907/MAX908/MAX909 Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators ELECTRICAL CHARACTERISTICS (continued) (V+ = 5V, TA = TMIN to TMAX; MAX909 only: V- = 0V, VLATCH = 0V; unless otherwise noted.
Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators (V+ = 5V, TA = +25°C, unless otherwise noted.) PROPAGATION DELAY vs. SOURCE IMPEDANCE 40 tPD+ tPD- 30 20 10 10 60 tPD+ tPD40 20 100 60 tPD+ 50 tPD- 40 100 10k 1k 0 20 40 60 80 100 SOURCE IMPEDANCE (Ω) CAPACITIVE LOAD (pF) PROPAGATION DELAY vs. TEMPERATURE OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT OUTPUT LOW VOLTAGE vs. SINK CURRENT 0.5 MAX907 TOC05 5.0 VIN = 100mV 4.5 tPD+ tPD- 50 40 TA = +125°C 4.
Typical Operating Characteristics (continued) (V+ = 5V, TA = +25°C, unless otherwise noted.) V- = -5V TA = +125°C TA = +25°C TOTAL I+ (mA) TOTAL ICC (mA) 3.0 TA = -55°C V+ = +5V TA = +125°C TOTAL I- (µA) TA = +125°C 200 MAX907 TOC11 2.0 MAX907 TOC10 4.0 2.0 MAX909 NEGATIVE SUPPLY CURRENT vs. NEGATIVE SUPPLY VOLTAGE MAX909 POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE MAX907 TOC12 MAX908 TOTAL POSITIVE SUPPLY CURRENT vs. POSITIVE SUPPLY VOLTAGE (OUTPUTS AT VOH) TA = +25°C 1.
Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators (V+ = 5V, TA = +25°C, unless otherwise noted.) MAX907/MAX908 PROPAGATION DELAY (tPD+) (5mV OVERDRIVE) MAX907/MAX908 PROPAGATION DELAY (tPD-) (5mV OVERDRIVE) MAX907 TOC20 MAX907 TOC19 5mV OVERDRIVE INPUT GND INPUT 20mV/div INPUT GND -5mV OVERDRIVE INPUT 20mV/div OUTPUT 500mV/div OUTPUT 500mV/div TTL THRESHOLD (1.4V) TTL THRESHOLD (1.
MAX907/MAX908/MAX909 Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators Pin Description PIN NAME FUNCTION MAX907 MAX908 MAX909 1 1 — OUTA 2 2 — INA- Comparator A Inverting Input 3 3 — INA+ Comparator A Noninverting Input 4 11 6 GND Ground 5 5 — INB+ Comparator B Noninverting Input 6 6 — INB- Comparator B Inverting Input 7 7 — OUTB 8 4 1 V+ — 8 — OUTC — 9 — INC- Comparator C Inverting Input — 10 — INC+ Comparator C Noninvertin
Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators VHYST VOS = VTRIP- LATCH 3V VIN+ VTRIP+ + VTRIP2 LE 1.4V 0V VIN- = 0V VOS VOH COMPARATOR OUTPUT DIFFERENTIAL INPUT VOLTAGE Figure 1. Input and Output Waveforms, Noninverting Input Varied Applications Information th VOD VIN VOH VOL COMPARE ts tPD+ OUTPUT 1.4V (QOUT) VOL tSKEW VOH OUTPUT (QOUT) 1.
MAX907/MAX908/MAX909 Single/Dual/Quad, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators 10pF 1MΩ VCLAMP = -200mV TO -300mV +5V 1/2 MAX907 +5V 0.1µF MAX403 2 7 6 SIEMENS BP-104 PHOTODIODE 3 ISRC 3 1 4 100kΩ 47kΩ 0.1µF 8 2 4 100kΩ DATA MAX907 +5V 1000pF V- 1000pF Figure 3. Schottky Clamp for Input Driven Below Ground Pin Configurations (continued) Figure 4.