Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Comparator Multi-purpose TTL SOIC 16

General Description

The MAX9201/MAX9202/MAX9203 high-speed, low-

power, quad/dual/single comparators feature TTL logic

outputs with active internal pullups. Fast propagation

delay (7ns typ at 5mV overdrive) makes these devices

ideal for fast A/D converters and sampling circuits, line

receivers, V/F converters, and many other data-discrim-

ination, signal restoration applications.

All comparators can be powered from separate analog

and digital power supplies or from a single combined

supply voltage. The analog input common-mode range

includes the negative rail, allowing ground sensing

when powered from a single supply. The MAX9201/

MAX9202/MAX9203 consume only 9mW per compara-

tor when powered from a +5V supply.

The MAX9202/MAX9203 feature output latches with TTL

compatible inputs. The comparator output states are

held when the latch inputs are driven low. The

MAX9201 provides all the same features as the

MAX9202/MAX9203 with the exception of the latches.

The MAX9201/MAX9202/MAX9203 are lower power and

lower cost upgrades to the MAX901/MAX902/MAX903

offering a 50% power savings and smaller packaging.

________________________Applications

____________________________Features

♦ Fast 7ns Propagation Delay

♦ Low 9mW/Comparator Power Consumption

♦ Separate Analog and Digital Supplies

♦ Flexible Analog Supply: +5V to +10V or ±5V

♦ Input Voltage Range Includes

Negative Supply Rail

♦ TTL-Compatible Outputs

♦ TTL-Compatible Latch Inputs

(MAX9202/MAX9203)

♦ Available in Space-Saving Packages

8-Pin SOT23 (MAX9203)

14-Pin TSSOP (MAX9202)

16-Pin TSSOP (MAX9201)

MAX9201/MAX9202/MAX9203

Low-Cost, 7ns, Low-Power

Voltage Comparators

________________________________________________________________ Maxim Integrated Products 1

TOP VIEW

N.C.

OUTB

LATCHBLATCHA

GND

INA+

INA-

MAX9202

INB+

INB-V

N.C.

OUTA

SO/TSSOP

INA- IND-

IND+

OUTD

OUTC

INC+

INC-

MAX9201

SO/TSSOP

INA+

GND

OUTA

OUTB

INB+

INB-

IN-

LATCH

IN+OUT

GND

SOT23

MAX9203

GND

LATCHV

OUTIN+

IN-

MAX9203

Pin Configurations

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

PART TEMP RANGE PIN-PACKAGE

MAX9201EUE -40°C to +85°C 16 TSSOP

MAX9201ESE -40°C to +85°C 16 Narrow SO

MAX9202EUD -40°C to +85°C 14 TSSOP

MAX9202ESD -40°C to +85°C 14 Narrow SO

MAX9203EKA-T

-40°C to +85°C 8 SOT23-8

MAX9203ESA -40°C to +85°C 8 Narrow SO

Ordering Information

High-Speed A/D

Converters

High-Speed V/F

Converters

Line Receivers

High-Speed Signal

Squaring/Restoration

Threshold Detectors

Input Trigger Circuitry

High-Speed Data

Sampling

PWM Circuits

19-1936; Rev 1; 1/05

Summary of content (8 pages)

PAGE 1
9-1936; Rev 1; 1/05 Low-Cost, 7ns, Low-Power Voltage Comparators The MAX9201/MAX9202/MAX9203 high-speed, lowpower, quad/dual/single comparators feature TTL logic outputs with active internal pullups. Fast propagation delay (7ns typ at 5mV overdrive) makes these devices ideal for fast A/D converters and sampling circuits, line receivers, V/F converters, and many other data-discrimination, signal restoration applications.
PAGE 2
MAX9201/MAX9202/MAX9203 Low Cost, 7ns, Low-Power Voltage Comparators ABSOLUTE MAXIMUM RATINGS Analog Supply Voltage (VCC - VEE) .....................................+12V Digital Supply Voltage (VDD) .................................................+7V Differential Input Voltage..................(VEE - 0.3V) to (VCC + 0.3V) Common Mode Input Voltage ..........(VEE - 0.3V) to (VCC + 0.3V) Latch Input Voltage (MAX9202/MAX9203 only) .....................-0.3V to (VDD + 0.
PAGE 3
Low Cost, 7ns, Low-Power Voltage Comparators (VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER Negative Analog Supply Current Digital Supply Current Power Dissipation SYMBOL IEE IDD PD CONDITIONS Note 5 Note 5 VCC = VDD = +5V, VEE = 0V TYP MAX MAX9201 MIN 3.4 5.0 MAX9202 1.8 3.0 MAX9203 1.0 1.6 MAX9201 2 3.0 MAX9202 1 1.5 MAX9203 0.5 0.
PAGE 4
Typical Operating Characteristics (VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, VOUT = 1.4V, TA = +25°C, unless otherwise noted.) INPUT BIAS CURRENT vs. TEMPERATURE INPUT OFFSET VOLTAGE vs. TEMPERATURE VCM = 0 1.6 INPUT BIAS CURRENT (µA) 1.0 0.5 0 -0.5 -1.0 1.2 1.0 0.8 0.4 -15 10 35 60 -15 10 35 60 TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT HIGH VOLTAGE (VOH) vs. LOAD CURRENT OUTPUT LOW VOLTAGE (VOL) vs. LOAD CURRENT TA = +85°C 3.6 TA = +25°C 3.2 3.
PAGE 5
Low Cost, 7ns, Low-Power Voltage Comparators (VCC = +5V, VEE = -5V, VDD = +5V, GND = 0, VCM = 0, LATCH_ = logic high, VOUT = 1.4V, TA = +25°C, unless otherwise noted.) RESPONSE TIME vs. TEMPERATURE (5mV OVERDRIVE) 7.5 7.3 tPD+ 7.0 MAX9201 toc08 9.5 tPDRESPONSE TIME (ns) 7.8 RESPONSE TIME (ns) 10.0 MAX9201 toc07 8.0 RESPONSE TIME vs. LOAD CAPACITANCE (5mV OVERDRIVE, RLOAD = 2.4kΩ) 9.0 8.5 8.0 tPD+ 7.5 7.0 6.8 tPD- 6.5 6.5 6.
PAGE 6
MAX9201/9202/9203 Low Cost, 7ns, Low-Power Voltage Comparators decoupling and terminating components. Short lead lengths on the inputs and outputs are essential to avoid unwanted parasitic feedback around the comparators. Solder the device directly to the printed circuit board instead of using a socket.
PAGE 7
Low Cost, 7ns, Low-Power Voltage Comparators Definition of Terms Input Offset Voltage: Voltage applied between the two input terminals to obtain TTL logic threshold (+1.4V) at the output. Input Voltage Pulse Amplitude: Usually set to 100mV for comparator specifications. Input Voltage Overdrive: Usually set to 5mV and in opposite polarity to VIN for comparator specifications.
PAGE 8
MAX9201/9202/9203 Low Cost, 7ns, Low-Power Voltage Comparators INPUT 50mV/div 0V INPUT TO 10X SCOPE PROBE (10MΩ 14pF) VCC = +5V VOD + 5mV OUTPUT 10kΩ 1kΩ PRECISION STEP GENERATOR 100nF OUTPUT TO 10X SCOPE PROBE (10MΩ 14pF) 1V/div 0V 100nF RL 2.43kΩ D.U.T. 10kΩ VCC OFFSET ADJUST VDD = +5V 100nF 5ns/div 10kΩ 100nF VEE = -5V Figure 4. tPD- Response Time to 5mV Overdrive Figure 5.