MAX4493, MAX4494, MAX4495 SC70, Low-Power, General-Purpose, Dual-Supply, Rail-to-Rail Op Amps

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The MAX4493/MAX4494/MAX4495 single/dual/quad general-purpose operational amplifiers are designed for use in systems powered with dual supplies from ±2.25V to ±5.5V. These op amps provide a unity-gain bandwidth of 5MHz with only 770µA of quiescent current per amplifier. The wide input common-mode range extends from 200mV beyond the negative rail to within 1.5V of the positive supply rail while the output swings within 10mV (R_L = 100kΩ) of either rail.

These amplifiers have excellent (110dB) open-loop gain with very low THD+N of 0.002% (f = 1kHz). The single MAX4493 is available in a tiny 5-pin SC70 package and the dual MAX4494 is available in the space-saving 8-pin SOT23. The quad MAX4495 is available in both 14-pin TSSOP and 14-pin SO packages. All products are rated at the automotive temperature range of -40°C to +125°C.

Key Features

Applications/Uses

770µA Supply Current per Amplifier
Operates from Dual ±2.25V to ±5.5V Supplies
5MHz Gain-Bandwidth Product
Rail-to-Rail Output Swing
Input Voltage Range Extends 200mV Below the Negative Rail
110dB Open-Loop Gain (R_L = 100kΩ)
Low THD+N of 0.002% (f = 1kHz)
No Phase Reversal for Overdriven Inputs
Unity-Gain Stable
Available in Space-Saving Packages
- 5-Pin SC70 (MAX4493)
- 8-Pin SOT23 (MAX4494)
- 14-Pin TSSOP (MAX4495)

	Battery-Powered Applications
	DAC Output Amplifiers
	Industrial Control Systems
	Signal Conditioning
	Voltage Reference Generators

Key Specifications: Operational Amplifiers

Part Number

Amps Per Pkg.

Rail to Rail

Min. Stable Closed Loop Gain (V/V)

Min. Total Supply (V)

Max. Total Supply (V)

Typ. Supply Current per Amp. (µA)

Max. V_OS (µV)

Typ. CMRR @ DC (dB)

Typ PSRR @ DC (dB)

Max. Input I_BIAS (nA)

Typ. Unity Gain BW (MHz)

Typ. Slew Rate (V/µs)

Input Voltage Noise Density (nV/√Hz)

Input Current Noise Density (pA/√Hz)

Low Power Shutdown

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^*

MAX4493

Output Only

4.5

770

5,000

1000

0.2

SC-70/5
SOT-23/5

-40 to +125

$0.57 @ 1k

MAX4494

SOIC/8
SOT-23/8
uMAX/8

$0.78 @ 1k

MAX4495

SOIC/14
TSSOP/14

$1.05 @ 1k

See All Operational Amplifiers (143)

Notes:
^*This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.