Features: ` Internal Gain-Setting Resistors in SOT23 Packages (MAX4074)
` 0.1% Gain Accuracy (RF/RG) (MAX4074/75)
` 54 Standard Gains Available (MAX4074/75)
` Open-Loop, Unity-Gain-Stable Op Amps (MAX4076/77/78)
` Rail-to-Rail Outputs Drive 1k Load (MAX4074/75)
` +2.5V to +5.5V Single Supply
` 34A Supply Current (MAX4074/75)
` Up to 4MHz GBW Product
` Fault-Protected Inputs Withstand ±17V (MAX4074/75)
` 200pA max Input Bias Current (MAX4076/77/78)
` Stable with Capacitive Loads up to 100pF with No Isolation ResistorApplication · Portable Battery-Powered Equipment
· Instruments, Terminals, and Bar-Code Readers
· Keyless Entry
· Photodiode Preamps
· Smart-Card Readers
· Infrared Receivers for Remote Controls
· Low-Side Current-Sense AmplifiersSpecificationsSupply Voltages (VCC to VEE) .............................................-0.3V to +6V
Voltage Inputs (IN_)
MAX4076/MAX4077/MAX4078 ......................(VCC + 0.3V) to (VEE - 0.3V)
MAX4074/MAX4075........................................................................±17V
Output Short-Circuit Duration to Either Supply (OUT_). . . .. Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C) ........................571mW
14-Pin TSSOP (derate 6.3mW/°C above +70°C) ......................500mW
8-Pin MAX (derate 4.1mW/°C above +70°C) ..........................330mW
8-Pin SO (derate 5.88mW/°C above +70°C).............................471mW
14-Pin SO (derate 8.33mW/°C above +70°C)...........................667mW
Operating Temperature Range ...................................-40°C to +85°C
Junction Temperature...............................................................+150°C
Storage Temperature Range ....................................-65°C to +150°C
Lead Temperature (soldering, 10sec) .....................................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe MAX4078 GainAmp™ op amp family combines low-cost Rail-to-Rail® op amps with precision internal gain-setting resistors. Factory-trimmed on-chip resistors decrease design size, cost, and layout, and provide 0.1% gain accuracy. Fixed inverting gains from -0.25V/V to -100V/V or noninverting gains from +1.25V/V to +101V/V are available. The MAX4078 operate from a single +2.5V to +5.5V supply and consume just 34A. GainAmp amplifiers are optimally compensated for each gain version, achieving gain bandwidth (GBW) products up to 4MHz (AV = +25V/V to +101V/V). High-voltage fault protection withstands ±17V at either input without damage or excessive current draw (MAX4074/MAX4075 only).
Two versions are available in this amplifier family. The MAX4076/MAX4077/MAX4078 are single/dual/quad open-loop, unity-gain-stable op amps, and the MAX4074/MAX4075 are single/dual fixed-gain op amps. The input common-mode voltage range of the open-loop amplifiers extends from 150mV below the negative supply to within 1.2V of the positive supply. The GainAmp outputs can swing rail-to-rail and drive a 1k load while maintaining excellent DC accuracy (MAX4074/MAX4075 only). The amplifiers are stable for capacitive loads up to 100pF.
MAX4078 Data Sheet
