QuickView - MAX4174, MAX4175, MAX4274, MAX4275, MAX4281, MAX4282, MAX4284 SOT23, Rail-to-Rail, 고정 이득, 이득 앰프/오픈 루프 Op 앰프

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The MAX4174/MAX4175/MAX4274/MAX4275 Gain-Amp family combines a low-cost rail-to-rail op amp with precision internal gain-setting resistors and V_CC / 2 biasing. 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. These devices operate from a single +2.5V to +5.5V supply and consume only 300µA. GainAmp amplifiers are optimally compensated for each gain version, achieving exceptional GBW products up to 23MHz (A_V = +25V/V to +101V/V). High-voltage fault protection withstands µ17V at either input without excessive current draw.

Three versions are available in this amplifier family: single/dual/quad open-loop, unity-gain stable (MAX4281/MAX4282/MAX4284); single/dual fixed gain (MAX4174/MAX4274); and single/dual fixed gain plus internal V_CC / 2 bias at the noninverting input (MAX4175/MAX4275), which simplifies input biasing in single-supply designs. 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 outputs can swing rail-to-rail and drive a 1kΩ load while maintaining excellent DC accuracy. The amplifier is stable for capacitive loads up to 470pF.

주요기능

애플리케이션/용도

GainAmp Family Provides Internal Precision Gain-Setting Resistors in SOT23 (MAX4174/5)
0.1% Gain Accuracy (RF/RG) (MAX4174/5, MAX4274/5)
54 Standard Gains Available (MAX4174/5, MAX4274/5)
Open-Loop Unity-Gain-Stable Op Amps (MAX4281/2/4)
Rail-to-Rail Outputs Drive 1kΩ Load
Internal V_CC / 2 Biasing (MAX4175/MAX4275)
+2.5V to +5.5V Single Supply
300µA Supply Current
Up to 23MHz GBW Product
Fault-Protected Inputs Withstand ±17V
Stable with Capacitive Loads Up to 470pF with No Isolation Resistor

	원격 제어용 적외선 수신기
	기기, 단말기 및 바코드 리더
	키리스 엔트리 (Keyless Entry)
	로우 사이드 전류 감지 앰프
	포토다이오드 프리앰프
	휴대용 계측
	스마트 카드 리더

Key Specifications: Differential/Instrumentation Amplifiers
Part Number	Architecture	Amps Per Pkg.	Input CMVR to Neg. Rail	Rail to Rail	Gain (V/V)	Min. Total Supply (V)	Max. Total Supply (V)	Typ. Supply Current per Amp. (mA)	Max. Supply Current per Amp. (mA)	Max. V_OS (µV)	Typ. CMRR @ DC (dB)	Typ PSRR @ DC (dB)	Max. Input I_BIAS (nA)	Typ. Unity Gain BW (MHz)	Input CMVR (V)	Price^**
MAX4174	Inverting Amp.	1	Yes	Output Only	1.25 to 101	2.5	5.5	0.3	0.51	2,500	90	90	10	2	V_EE to V_CC-1.25	$0.68 @ 1k
MAX4175	Inverting Amp.	1	Yes	Output Only	1.25 to 101	2.5	5.5	0.3	0.53	2,500	90	90	10	2	V_EE to V_CC-1.25	$0.75 @ 1k
MAX4274	Inverting Amp.	2	Yes	Output Only	1.25 to 101	2.5	5.5	0.3	0.51	2,500	90	90	10	2	V_EE to V_CC-1.25	$0.95 @ 1k
MAX4275	Inverting Amp.	2	Yes	Output Only	1.25 to 101	2.5	5.5	0.3	0.53	2,500	90	90	10	2	V_EE to V_CC-1.25	$1.05 @ 1k
See All Differential/Instrumentation Amplifiers (17)

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. 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

Price^**

MAX4281

Output Only

2.5

5.5

300

500

2,000

0.7

0.004

SOIC(N)/8
SOT/5

$0.60 @ 1k

MAX4282

µMAX/8
SOIC(N)/8

$0.95 @ 1k

MAX4284

QSOP/16
SOIC(N)/14

$1.50 @ 1k

See All Operational Amplifiers (144)

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.