Pulse Amplifier - A275

Features

• Power 15 mW
• Slew Rate 100 V/µs
• Input Noise 4 nV/?Hz
• Stable DC Operation
• 200 MHz Gain-Bandwidth Product
• High Reliability Screening
• Unity Gain Stable

Applications

• Space Instrumentation
• Portable Instrumentation
• Nuclear Instrumentation
• Precision Active Filter Design
• Pulse Shaping

Pin Function

1 Inverting input
2 Non-inverting Input
3 Bias adjust to Pin 4, (R>3 kohm)
4 -Vs direct
5 -Vs through 50 ohms
6 Compensation to Pin 7, (C = 0-5 pF)
7 Case and Ground
8 Output through 50 ohms
9 Output direct
10 +Vs through 50 ohms
11 + Vs direct
12, 13, 14 Compensation: Leave open for <10; Short for gain >10 gain

Electrical Characteristics

V_S = ±6 V, T_A = +25 °C

Parameter	Symbol	Conditions	Min	Typ	Max	Units
Input Offset Voltage Uncompensated/Compensated	VOS			2	5/7	mV
Input Offset Current	IOS			0.1	6	µA
Input Bias Current	IB			1.5	4	µA
Input Capacitance	CIN			4		pF
Differential Input Resistance	RIN			44		kΩ
Common-Mode Input Resistance	RIN		>5	8		MΩ
Common-Mode Rejection Ratio	CMMR		90	95		dB
Common-Mode Input Range	IVR			±4.5		V
Power Supply Rejection Ratio	PSRR			60		dB
Large-Signal Voltage Gain @5kHz @5kHz @10MHz @10MHz	ALFC ALF AHFC AHF	compensated uncompensated compensated uncompensated	64 72 16 24	66 74 20 28		dB
Pulse Risetime (AV = 10)	trc tr	compensated uncompensated		15 9	22 15	ns
Output Voltage Swing	VOP VON	positive negative	+4.2 -	+4.4 -5.0	-5.5	V
Open Loop Output Resistance	RO			750		Ω
Output Short-Circuit Current	IOSC	source sink		11 -4		mA
Slew Rate	SRP SRN	positive negative	65 35	100 40		V/µs
Input Noise Voltage Density	eN			4		nV/?Hz
Supply Current	IS		±1.1	±1.25	±1.4	mA
Power Consumption	PD			15		mW