MAX4245, MAX4246, MAX4247 超小型、满摆幅输入/输出、带有禁止功能、单/双电源供电、低功耗运算放大器

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The MAX4245/MAX4246/MAX4247 family of low-cost op amps offer Rail-to-Rail inputs and outputs, draw only 320µA of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4245/MAX4247 offer a low-power shutdown mode that reduces supply current to 50nA, and puts the amplifiers' outputs in a high-impedance state. These devices are unity-gain stable with a 1MHz gain-bandwidth product driving capacitive loads up to 470pF.

The MAX4245/MAX4246/MAX4247 family is specified from -40°C to +125°C, making them suitable for use in a variety of harsh environments, such as automotive applications. The MAX4245 single amplifier is available in ultra-small 6-pin SC70 and space-saving 6-pin SOT23 packages. The MAX4246 dual amplifier is available in 8-pin, SO, SOT23 and µMAX® packages. The MAX4247 dual amplifier comes in a tiny 10-pin µMAX package.

关键特性

应用/使用

Rail-to-Rail Input and Output Voltage Swing
50nA (max) Shutdown Mode (MAX4245/MAX4247)
320µA (typ) Quiescent Current Per Amplifier
Single +2.5V to +5.5V Supply Voltage Range
110dB Open-Loop Gain with 2kΩ Load
0.01% THD with 100kΩ Load
Unity-Gain Stable up to C_LOAD = 470pF
No Phase Inversion for Overdriven Inputs
Available in Space-Saving Packages
- 6-Pin SC70 or 6-Pin SOT23 (MAX4245)
- 8-Pin SOT23/SO or 8-Pin µMAX (MAX4246)
- 10-Pin µMAX (MAX4247)

	电子点火模块
	红外接收器
	仪表与终端
	便携式通信
	传感器-信号检测
	单电源供电过零检测器

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

Operating Temp. Range (°C)

Price^**

MAX4245

Input and Output

2.5

5.5

375

1,500

0.4

0.1

Yes

SC-70/6
SOT-23/6

-40 to +125

$0.49 @ 1k

MAX4246

SOIC/8
SOT-23/8
uMAX/8

$0.61 @ 1k

MAX4247

Yes

uMAX/10

$0.64 @ 1k

See All Operational Amplifiers (141)

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.