MAX9000 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs

19-0499; Rev 1; 7/98
Low-Power, High-Speed, Single-Supply
Op Amp + Comparator + Reference ICs
General Description
Features
The MAX9000 family features the combination of a high-
speed operational amplifier, a 185ns comparator, and a
precision 1.230V reference. These devices operate from a
single +2.5V to +5.5V supply and draw less than 500µA of
quiescent current. The MAX9001/MAX9004 feature a shut-
down mode that reduces supply current to 2µA and puts
the outputs into a high-impedance state, making them
ideal for portable and battery-powered applications.
The amplifiers in the MAX9000/MAX9001/MAX9002 are
unity-gain stable with a 1.25MHz gain-bandwidth product,
while the amplifiers in the MAX9003/MAX9004/MAX9005
are stable for closed-loop gains of +10V/V or greater with
an 8MHz gain-bandwidth product. The input common-
mode voltage extends from 150mV below the negative
supply to within 1.2V of the positive supply for the amplifi-
er, and to within 1.1V for the comparator. The amplifier and
comparator outputs can swing Rail-to-Rail^® and deliver up
to ±2.5mA and ±4.0mA, respectively, to an external load
while maintaining excellent DC accuracy. The unique
design of the comparator output stage substantially
reduces switching current during output transitions, virtually
eliminating power-supply glitches.
The comparator’s ±2mV of built-in hysteresis provides
noise immunity and prevents oscillations even with a
slow-moving input signal. The MAX9000/MAX9001/
MAX9003/MAX9004 have an internal 1.230V ±1% preci-
sion reference with a low 8ppm/°C temperature coeffi-
cient that can sink or source up to 1mA. The amplifier and
reference are stable with capacitive loads up to 250pF
and 100nF, respectively. The comparator’s inverting input
is internally connected to the reference output in the
MAX9000/MAX9003.
________________________Applications
o Op Amp + Comparator + Reference in
Space-Saving µMAX Package
o +2.5V to +5.5V Single-Supply Voltage Range
o 340µA Supply Current (MAX9002/MAX9005)
o Unity-Gain Stable (GBW = 1.25MHz) and
Decompensated (A_V ≥ 10V/V, GBW = 8MHz) Options
o Op-Amp/Comparator Outputs Swing Rail-to-Rail
o Ground-Sensing Inputs for Both Op Amp and
Comparator
o Op Amp Stable with Capacitive Loads up to 250pF
o Internal ±2mV Comparator Hysteresis
o Fast 185ns Propagation-Delay Comparator
o No Phase Reversal for Overdriven Inputs
(Both Op Amp and Comparator)
o Internal 1.230V Precision Reference (MAX9000/
MAX9001/MAX9003/MAX9004)
±1% Initial Accuracy
Low 8ppm/°C Temperature Drift
Sink or Source up to 1mA
Stable for Capacitive Loads up to 100nF
PART
MAX9000EUA
MAX9000ESA
MAX9001EUB
MAX9001ESD
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 SO
10 µMAX
14 SO
Single-Supply Zero-
Crossing Detector
Instruments, Terminals,
and Bar-Code Readers
Keyless Entry
Photodiode Preamps
Smart Card Readers
Infrared Receivers
for Remote Controls
Sensor Signal Detection
Ordering Information continued at end of data sheet.
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
______________________________________________________________________________Selector Guide
PART
MAX9000
MAX9001
MAX9002
MAX9003
MAX9004
MAX9005
INTERNAL
PRECISION
REFERENCE
Yes
Yes
No
Yes
Yes
No
OP-AMP GAIN
STABILITY
(V/V)
1
1
1
10
10
10
SHUTDOWN
No
Yes
No
No
Yes
No
OP-AMP GAIN
BANDWIDTH
(MHz)
1.25
1.25
1.25
8
8
8
PIN-PACKAGE
8 SO/µMAX
10 µMAX, 14 SO
8 SO/µMAX
8 SO/µMAX
10 µMAX, 14 SO
8 SO/µMAX
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