Manual

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MAX9107/MAX9108/MAX9109

25ns, Dual/Quad/Single, Low-Power,

TTL Comparators

________________________________________________________________ Maxim Integrated Products 1

TOP VIEW

N.C.

OUT

GND

IN+

IN-

N.C.

MAX9109

SOT23/SO

OUTB

INB-

INB+

OUTA

INA-

INA+

GND

MAX9107

OUTD

IND-

IND+

GNDV

INA+

INA-

OUTA

MAX9108

INC+

INC-

OUTCOUTB

INB-

INB+

TSSOP/SO

GND

IN-IN+

16V

5 LE

OUT

MAX9109

SC70/SOT23

Pin Configurations

19-2045; Rev. 0; 5/01

General Description

The MAX9107/MAX9108/MAX9109 dual/quad/single,

high-speed, low-power voltage comparators are

designed for use in systems powered from a single

+5V supply. Their 25ns propagation delay (with 10mV

input overdrive) is achieved with a power consumption

of only 1.75mW per comparator. The wide input com-

mon-mode range extends from 200mV below ground

to within 1.5V of the positive supply rail.

The MAX9107/MAX9108/MAX9109 outputs are TTL-

compatible, requiring no external pullup circuitry.

These easy-to-use comparators incorporate internal

hysteresis to ensure clean output switching even when

the devices are driven by a slow-moving input signal.

The MAX9107/MAX9108/MAX9109 are higher-speed,

lower-power, lower-cost upgrades to industry-standard

comparators MAX907/MAX908/MAX909. The MAX9109

features an output latch but does not have comple-

mentary outputs.

The dual MAX9107 is available in both 8-pin SO and

SOT23 packages. The quad MAX9108 is available in

14-pin TSSOP and SO packages while the single

MAX9109 is available in an ultra-small 6-pin SC70

package, a space-saving 6-pin SOT23 package and

an 8-pin SO package.

Applications

Features

♦ 25ns Propagation Delay

♦ 350µA (1.75mW) Supply Current Per Comparator

♦ Single 4.5V to 5.5V Supply Operation

♦ Wide Input Range Includes Ground

♦ Low 500µV Offset Voltage

♦ Internal Hysteresis Provides Clean Switching

(2mV)

♦ TTL-Compatible Outputs

♦ Internal Latch (MAX9109 only)

♦ No Phase Reversal for Overdriven Inputs

♦ Space-Saving Packages:

6-Pin SC70 (MAX9109)

8-Pin SOT23 (MAX9107)

14-Pin TSSOP (MAX9108)

Ordering Information

PART TEMP. RANGE

PIN-

PACKAGE

TOP

MARK

MAX9107EKA-T -40°C to +85°C 8 SOT23-8 AAIB

MAX9107ESA -40°C to +85°C 8 SO —

MAX9108EUD -40°C to +85°C 14 TSSOP —

MAX9108ESD -40°C to +85°C 14 SO —

MAX9109EXT-T -40°C to +85°C 6 SC70-6 AAU

MAX9109EUT-T -40°C to +85°C 6 SOT23-6 AARU

MAX9109ESA -40°C to +85°C 8 SO —

Battery-Powered Systems

A/D Converters

Line Receivers

Threshold Detectors/

Discriminators

Sampling Circuits

Zero-Crossing Detectors

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Summary of content (10 pages)

PAGE 1
9-2045; Rev. 0; 5/01 25ns, Dual/Quad/Single, Low-Power, TTL Comparators Features ♦ 25ns Propagation Delay ♦ 350µA (1.75mW) Supply Current Per Comparator ♦ Single 4.5V to 5.
PAGE 2
MAX9107/MAX9108/MAX9109 25ns, Dual/Quad/Single, Low-Power, TTL Comparators ABSOLUTE MAXIMUM RATINGS Power-Supply Ranges Supply Voltage (VCC to GND) ..............................................6V Differential Input Voltage ........................-0.3V to (VCC + 0.3V) Common-Mode Input Voltage to GND ...-0.3V to (VCC + 0.3V) Latch-Enable Input Voltage (MAX9109 only) ...................................-0.3V to (VCC + 0.3V) Output Short-Circuit Duration to VCC or GND ........................
PAGE 3
25ns, Dual/Quad/Single, Low-Power, TTL Comparators (VCC = +5V, VCM = 0, VLE = 0 (MAX9109 only), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS tPD+, tPD- VIN = 100mV, VOD = 10mV 25 ns ∆tPD VIN = 100mV, VOD = 10mV (Note 6) 1 ns Propagation Delay Skew tPDskew VIN = 100mV, VOD = 10mV (Note 7) 5 ns Latch Input Voltage High VIH (Note 8) Propagation Delay Differential Propagation Delay 2.
PAGE 4
__________________________________________Typical Operating Characteristics (VCC = 5V, VCM = 0, CL = 15pF, TA = +25°C, unless otherwise noted.) SUPPLY CURRENT vs. SUPPLY VOLTAGE (OUTPUTS AT VOH) 0.3 0.2 TA = -55°C 0.3 TA = +25°C 0.2 TA = -55°C 0.1 0.1 0 4.5 5.0 5.5 VCMR- 4.5 5.0 5.5 6.0 -60 -40 -20 0 20 40 60 80 100 120 140 INPUT BIAS CURRENT vs. TEMPERATURE TRIP POINT vs. TEMPERATURE 0 -0.1 -0.2 -0.3 -0.
PAGE 5
25ns, Dual/Quad/Single, Low-Power, TTL Comparators PROPAGATION DELAY (tPD+) INPUT 50mV/div MAX9107/08/09 toc11 MAX9107/08/09 toc10 PROPAGATION DELAY (tPD-) INPUT 50mV/div OVERDRIVE 10mV OVERDRIVE 10mV OUTPUT 1V/div OUTPUT 1V/div 5ns/div SINUSOID 2MHz RESPONSE PROPAGATION DELAY vs.
PAGE 6
MAX9107/MAX9108/MAX9109 25ns, Dual/Quad/Single, Low-Power, TTL Comparators ______________________________________________________________Pin Description PIN MAX9109 MAX9107 NAME SC70/SOT23 SO 1 1 — — OUTA 2 2 — — INA- Channel A Inverting Input 3 3 — — INA+ Channel A Noninverting Input 7 7 — — OUTB 6 6 — — INB- Channel B Inverting Input 5 5 — — INB+ Channel B Noninverting Input — 8 — — OUTC — 9 — — INC- Channel C Inverting Input — 10 — — INC+ Channel C N
PAGE 7
25ns, Dual/Quad/Single, Low-Power, TTL Comparators VHYST VTRIP- LATCH 3V VIN+ LE V + VTRIPVOS = TRIP+ 2 MAX9107/MAX9108/MAX9109 VTRIP+ 1.4V 0 COMPARE ts th VIN- = 0 VOD VOS VOH DIFFERENTIAL INPUT VOLTAGE VIN VOH COMPARATOR OUTPUT tPD+ OUTPUT 1.4V VOL Figure 1. Input and Output Waveforms, Noninverting Input Varied VOL Figure 2. MAX9109 Timing Diagram possible. Pay close attention to the decoupling capacitor’s bandwidth, keeping leads short.
PAGE 8
25ns, Dual/Quad/Single, Low-Power, TTL Comparators TSSOP.EPS SOT23, 8L.
PAGE 9
25ns, Dual/Quad/Single, Low-Power, TTL Comparators SC70, 6L.EPS 6LSOT.
PAGE 10
25ns, Dual/Quad/Single, Low-Power, TTL Comparators SOICN.EPS MAX9107/MAX9108/MAX9109 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.