MAX4491 Maxim, MAX4491 Datasheet
MAX4491
Available stocks
Related parts for MAX4491
MAX4491 Summary of contents
Page 1
... Gain-Bandwidth Product o Unity-Gain Stable with Capacitive Loads Up to 300pF o 50pA Input Bias Current o Ultra-Small, 5-Pin SC70 Package (MAX4490) Applications PART MAX4490AXK-T MAX4490AUK-T MAX4491AKA-T -40°C to +125°C MAX4491AUA MAX4492AUD MAX4492ASD TOP VIEW 100k Pin Configurations continued at end of data sheet. Features Ordering Information ...
Page 2
... SOT23 (derate 5.26mW/°C above +70°C)........421 mW 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 ...
Page 3
/ 100kΩ SUPPLY CURRENT PER AMPLIFIER vs. TEMPERATURE 850 800 750 700 650 V = 2.7V DD 600 ...
Page 4
... 10% TO 90% STEP 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) LARGE-SIGNAL TRANSIENT RESPONSE (NONINVERTING) IN V/div OUT V/div 40µs/div SMALL-SIGNAL TRANSIENT RESPONSE (INVERTING) IN 50mV/div OUT 50mV/div 40µs/div MAX4491/MAX4492 CROSSTALK vs. FREQUENCY 0 -20 -40 -60 -80 -100 -120 0.001 0.01 0 100 1000 FREQUENCY (MHz) ...
Page 5
... V drive capability is (2.5 - 0.1) / 2.2 = 1.1kΩ. For the same application, resistive-drive capability is 2.2kΩ when the load is connected to V The MAX4490/MAX4491/MAX4492 operate from a sin- + 1.2V), and the P- gle 2.7V to 5.5V supply or from dual ±1.35V to ±2.75V supplies with typically 800µA supply current per ampli- fier ...
Page 6
... AC performance through either ringing in the step response or sustained oscillations. The pole frequency is 10MHz when R′ = 3.2kΩ. To maximize stability, R′ <3kΩ is recommended. Applications that require rail-to-rail operation with mini- mal loading (for small V ...
Page 7
... Improve stability for large capacitive loads by adding an isolation resistor (typically 10Ω) in series with the output (Figure 5). Note that the isolation resistor forms a voltage divider with potential for gain error. MAX4490 TRANSISTOR COUNT: 60 MAX4491 TRANSISTOR COUNT: 120 MAX4492 TRANSISTOR COUNT: 240 SUBSTRATE CONNECTED TO V 4a) 4b) Figure 4 ...
Page 8
... S V OUT INA- 2 INA LOAD SOT23-8/µMAX Printed USA is a registered trademark of Maxim Integrated Products. Pin Configurations/ OUTA INA MAX4491 INA OUTB + - INB- DD MAX4492 5 INB+ INB INB OUTB 7 8 TSSOP/SO Package Information ...