Features: Op Amp + Comparator + Reference in
Space-Saving µMAX Package
+2.5V to +5.5V Single-Supply Voltage Range
340µA Supply Current (MAX9002/MAX9005)
Unity-Gain Stable (GBW = 1.25MHz) and
Decompensated (AV10V/V, GBW = 8MHz) Options
Op-Amp/Comparator Outputs Swing Rail-to-Rail
Ground-Sensing Inputs for Both Op Amp and
Comparator
Op Amp Stable with Capacitive Loads up to 250pF
Internal ±2mV Comparator Hysteresis
Fast 185ns Propagation-Delay Comparator
No Phase Reversal for Overdriven Inputs
(Both Op Amp and Comparator)
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 100nFApplicationSingle-Supply Zero-Photodiode Preamps
Crossing Detector
Smart Card Readers
Instruments, Terminals, Infrared Receivers
and Bar-Code Readersfor Remote Controls
Keyless EntrySensor Signal DetectionSpecificationsSupply Voltage (VDD to VSS)....................................-0.3V to +6V
Voltage Inputs (AIN_, CIN_)...............(VSS- 0.3V) to (VDD+ 0.3V)
Output Short-Circuit Duration (AOUT, COUT, REF).....Continuous
to either VSSor VDD
Continuous Power Dissipation (TA= +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
8-Pin µ MAX (derate 4.1mW/°C above +70°C)..............330mW
10-Pin µMAX (derate 5.6mW/°C above +70°C).............444mW
14-Pin SO (derate 8.3mW/°C above +70°C).................667mW
Operating Temperature Range
MAX900_E _ _.....................................................-40°C to +8°C
Maximum Junction Temperature......................................+150°C
Storage Temperature Range...........................-65°C to +160°C
Lead Temperature (soldering, 10sec)..............................+300°C
DescriptionThe MAX9000 family features the combination of a high- speed operational amplifier, a 185ns comparator, and aprecision 1.230V reference. These MAX9000 operate from asingle+2.5Vto+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 stableforclosed-loop gains of +10V/V or greater with an 8MHz gain-bandwidth product. The input common- mode voltage extends from 150mV below the negativesupply 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 MAX9000 output stage substantially reduces switching current during output transitions, virtually eliminatingpower-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.
MAX9000 Data Sheet
