Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Comparator Multi-purpose CMOS, Complementary, TTL uMAX 8

General Description

The MAX961–MAX964/MAX997/MAX999 are low-power,

ultra-high-speed comparators with internal hysteresis. These

devices are optimized for single +3V or +5V operation. The

input common-mode range extends 100mV Beyond-the-

Rails™, and the outputs can sink or source 4mA to within

0.52V of GND and VCC. Propagation delay is 4.5ns (5mV

overdrive), while supply current is 5mA per comparator.

The MAX961/MAX963/MAX964 and MAX997 have a

shutdown mode in which they consume only 270μA sup-

ply current per comparator. The MAX961/MAX963 pro-

vide complementary outputs and a latch-enable feature.

Latch enable allows the user to hold a valid comparator

output. The MAX999 is available in a tiny 5-pin SOT23

package. The single MAX961/MAX997 and dual MAX962

are available in space-saving 8-pin μMAX® packages.

Applications

● Single 3V/5V Systems

● Portable/Battery-Powered Systems

● Threshold Detectors/Discriminators

● GPS Receivers

● Line Receivers

● Zero-Crossing Detectors

● High-Speed Sampling Circuits

Features

● Ultra-Fast, 4.5ns Propagation Delay

● Ideal for +3V and +5V Single-Supply Applications

● Beyond-the-Rails Input Voltage Range

● Low, 5mA Supply Current (MAX997/MAX999)

● 3.5mV Internal Hysteresis for Clean Switching

● Output Latch (MAX961/MAX963)

● TTL/CMOS-Compatible Outputs

● Shutdown Mode

(MAX961/MAX963/MAX964/MAX997)

● Available in Space-Saving Packages:

• 5-Pin SOT23 (MAX999)

• 8-Pin μMAX (MAX961/MAX962/MAX997)

• 16-Pin QSOP (MAX964)

Beyond-the-Rails is a trademark and μMAX is a registered

trademark of Maxim Integrated Products, Inc.

Pin Configurations continued at end of data sheet.

19-1129; Rev 7; 9/14

Note: All E grade devices are specified over the -40°C to

+85°C operating temperature range. MAX999AAUK is specified

over the -40°C to +125°C operating temperature range.

+Denotes a lead(Pb)-free/RoHS-compliant package.

PART PIN-PACKAGE TOP MARK

MAX961ESA 8 SO —

MAX961EUA-T 8 µMAX —

MAX962ESA 8 SO —

MAX962EUA-T 8 µMAX —

MAX963ESD 14 SO —

MAX964ESE 16 Narrow SO —

MAX964EEE 16 QSOP —

MAX997ESA 8 SO —

MAX997EUA-T 8 µMAX —

MAX999AAUK+T 5 SOT23 +AFEI

MAX999EUK-T 5 SOT23 ACAB

PART

NO. OF

COMPARATORS

COMPLEMENTARY

OUTPUT

SHUTDOWN

LATCH

ENABLE

PIN-PACKAGE

MAX961 1 Yes Yes Yes 8 SO/μMAX

MAX962 2 No No No 8 SO/μMAX

MAX963 2 Yes Yes Yes 14 SO

MAX964 4 No Yes No 16 SO/QSOP

MAX997 1 No Yes No 8 SO/μMAX

MAX999 1 No No No 5 SOT23

GND

IN-IN+

1 5

TOP VIEW

MAX999

SOT23

3 4

MAX961–MAX964/

MAX997/MAX999

Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,

Beyond-the-Rails Comparators

Selector Guide

Pin Congurations

Ordering Information

Summary of content (13 pages)

PAGE 1
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators General Description The MAX961–MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis. These devices are optimized for single +3V or +5V operation. The input common-mode range extends 100mV Beyond-theRails™, and the outputs can sink or source 4mA to within 0.52V of GND and VCC. Propagation delay is 4.5ns (5mV overdrive), while supply current is 5mA per comparator.
PAGE 2
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Absolute Maximum Ratings Supply Voltage, VCC to GND...................................-0.3V to +6V All Other Pins............................................ -0.3V to (VCC + 0.3V) Current into Input Pins......................................................±20mA Duration of Output Short Circuit to GND or VCC.......Continuous Continuous Power Dissipation (TA = +70°C) 5-Pin SOT23 (derate 7.
PAGE 3
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Electrical Characteristics (continued) (VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted. TMIN to TMAX is -40°C to +85°C for all E grade devices. For MAX999AAUK only, TMIN to TMAX is -40°C to +125°C.) (Note 1) PARAMETER SYMBOL CONDITIONS Common-Mode Rejection Ratio CMRR VCC = 5V, µMAX, SOT23 VCM = -0.1V to 5.
PAGE 4
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Electrical Characteristics (continued) (VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted. TMIN to TMAX is -40°C to +85°C for all E grade devices. For MAX999AAUK only, TMIN to TMAX is -40°C to +125°C.
PAGE 5
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Typical Operating Characteristics (VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25°C, unless otherwise noted.) PROPAGATION DELAY vs. INPUT OVERDRIVE 5.5 5.0 tPD- 4.0 5.6 5.4 5.0 10 20 30 40 50 60 70 80 90 100 -40 -20 0 20 40 60 4 85 MAX997toc03 20 40 60 80 100 OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT OUTPUT LOW VOLTAGE vs. SINK CURRENT MAX997toc04 2.80 TA = +85°C 2.75 0.
PAGE 6
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Typical Operating Characteristics (continued) (VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25°C, unless otherwise noted.) VCC = 2.7V 20 -3 80 -20 MAX997toc10 VOS -1 -2 VTRIP- -3 20 0 40 60 -4 85 2 3 4 5 6 INPUT BIAS CURRENT/INPUT OFFSET CURRENT vs. TEMPERATURE SHORT-CIRCUIT OUTPUT CURRENT vs. TEMPERATURE VCC = 5.
PAGE 7
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Typical Operating Characteristics (continued) (VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25°C, unless otherwise noted.
PAGE 8
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Detailed Description teresis effectively causes one comparator input voltage to move quickly past the other, thus taking the input out of the region where oscillation occurs. Standard comparators require hysteresis to be added with external resistors. The fixed internal hysteresis eliminates these resistors.
PAGE 9
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators tSU tH DIFFERENTIAL V INPUT OS VOLTAGE tLPW VCC VCC 2 LE 0V tPD tLPD VOH VCC 2 Q VOL Q VCC 2 tSKEW tSKEW Figure 2. MAX961/MAX963 Timing Diagram MAX961–MAX964 MAX997 MAX999 IN+ IN- 200Ω 200Ω For a large differential input voltage (exceeding 3VF), this protection circuitry increases the input bias current at IN+ (source) and IN- (sink).
PAGE 10
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators VCC ISOURCE MAX961–MAX964 MAX997 MAX999 Q, Q ISINK GND Figure 4. Output Stage Circuitry Figure 5. MAX961 PCB Layout Output Stage Circuitry Applications Information The MAX961–MAX964/MAX997/MAX999 contain a current-driven output stage, as shown in Figure 4. During an output transition, ISOURCE or ISINK is pushed or pulled to the output pin.
PAGE 11
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Pin Configurations TOP VIEW 8 VCC INA+ 1 7 Q INA- 2 SHDN 3 6 Q LE 4 5 GND IN+ 1 IN- 2 MAX961 8 VCC 7 QA INB+ 3 6 QB INB- 4 5 GND MAX962 SO/MAX SO/MAX INA- 1 14 QA INA- 1 16 N.C.
PAGE 12
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE DOCUMENT NO. LAND PATTERN NO.
PAGE 13
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators Revision History REVISION NUMBER REVISION DATE PAGES CHANGED DESCRIPTION 0 9/96 Initial release 1 12/96 Added 8-pin µMAX packages. Correct minor errors. 1, 2, 3 — 2 3/97 Added dual and quad MAX963/MAX964 packages. 1, 2, 3 3 7/97 Added new MAX997 and MAX999 parts. 4 3/99 New wafer fab/process change to CB20. Update specifications and TOCs.