Philips A747CN Datasheet

Philips Semiconductors Linear Products	Product specification
Dual operational amplifier	μA747C

DESCRIPTION

The 747 is a pair of high-performance monolithic operational amplifiers constructed on a single silicon chip. High common-mode voltage range and absence of ªlatch-upº make the 747 ideal for use as a voltage-follower. The high gain and wide range of operating voltage provides superior performance in integrator, summing amplifier, and general feedback applications. The 747 is short-circuit protected and requires no external components for frequency compensation. The internal 6dB/octave roll-off insures stability in closed-loop applications. For single amplifier performance, see μA741 data sheet.

FEATURES

•No frequency compensation required

•Short-circuit protection

•Offset voltage null capability

•Large common-mode and differential voltage ranges

•Low power consumption

•No latch-up

ORDERING INFORMATION

PIN CONFIGURATION

N Package

INV. INPUT A	1	±	14	OFFSET NULL A
NON±INVERTING INPUT A	2	+ A	13	V + A
OFFSET NULL A	3		12	OUTPUT A
V±	4		11	NO CONNECT
OFFSET NULL B	5		10	OUTPUT B
NON±INVERTING INPUT B	6	+	9	V + B
INVERTING INPUT B	7	± B	8	OFFSET NULL B

TOP VIEW

DESCRIPTION	TEMPERATURE RANGE	ORDER CODE	DWG #
14-Pin Plastic DIP	0°C to 70°C	μA747CN	0405B

EQUIVALENT SCHEMATIC

INVERTING INPUT

							V+
	Q8		Q9	Q12			Q13
NON±INVERTING							Q14
INPUT
Q1		Q2
					30pF	R7
						4.5Ω
							Q18 Q15
						R8
Q3
		Q4				7.5KΩ
				R5
							R9
				39KΩ			25Ω
						Q16	OUTPUT
	Q7						Q17
Q5		Q6	Q10	Q11	Q22		R10
							50Ω
OFFSET NULL
							Q20
R1	R3	R2	R4			R12	R11
1KΩ	50KΩ	1KΩ	5kΩ			50kΩ 50Ω
							V±

OFFSET NULL

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853-0899 13721

Philips Semiconductors Linear Products	Product specification
Dual operational amplifier	μA747C

ABSOLUTE MAXIMUM RATINGS

	SYMBOL	PARAMETER	RATING	UNIT
VS		Supply voltage	±18	V
P	D MAX	Maximum power dissipation T =25°C (still air)1	1500	mW
		A
VIN		Differential input voltage	±30	V
VIN		Input voltage2	±15	V
		Voltage between offset null and V-	±0.5	V
TSTG		Storage temperature range	-65 to +150	°C
TA		Operating temperature range	0 to +70	°C
TSOLD		Lead temperature (soldering, 10sec)	300	°C
ISC		Output short-circuit duration	Indefinite

NOTES:

1.Derate above 25°C at the following rates: N package at 12mW/°C

2.For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage.

DC ELECTRICAL CHARACTERISTICS

TA=25°C, VCC = ±15V unless otherwise specified.

	SYMBOL		PARAMETER	TEST CONDITIONS		μA747C		UNIT
					Min	Typ	Max
	VOS		Offset voltage	RS≤10kΩ		2.0	6.0	mV
				RS≤10kΩ, over temp.		3.0	7.5	mV
	VOS/	T				10		μV/°C
	IOS		Offset current			20	200	nA
				Over temperature		7.0	300	nA
	IOS/	T				200		pA/°C
	IBIAS		Input current			80	500	nA
				Over temperature		30	800	nA
	IB/ T					1		nA/°C
	VOUT		Output voltage swing	RL≥ 2kΩ, over temp.	±10	±13		V
				RL≥ 10kΩ, over temp.	±12	±14		V
	ICC		Supply current each side			1.7	2.8	mA
				Over temperature		2.0	3.3	mA
	Pd		Power consumption			50	85	mW
				Over temperature		60	100	mW
	CIN		Input capacitance			1.4		pF
			Offset voltage adjustment range			±15		mV
	ROUT		Output resistance			75		Ω
			Channel separation			120		dB
	PSRR		Supply voltage rejection ratio	RS≤10kΩ, over temp.		30	150	μV/V
	AVOL		Large-signal voltage gain (DC)	RL≥ 2kΩ, VOUT=±10V	25,000			V/V
				Over temperature	15,000			V/V
	CMRR		Common-mode rejection ratio	RS≤10kΩ, VCM=±12V	70			dB
				Over temperature

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