Philips UA747C Manuale del proprietario

Philips Semiconductors Linear Products Product specification

µA747CDual operational amplifier

August 31, 1994 853-0899 13721

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 “latch-up” 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

PIN CONFIGURATION

–

INVERTING INPUT B

NON–INVERTING INPUT B

OFFSET NULL B

V–

OFFSET NULL A

NON–INVERTING INPUT A

INV. INPUT A

OFFSET NULL B

V + B

OUTPUT B

7 8

OFFSET NULL A

V + A

OUTPUT A

NO CONNECT

N Package

TOP VIEW

–

ORDERING INFORMATION

DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #

14-Pin Plastic DIP 0°C to 70°CµA747CN 0405B

EQUIVALENT SCHEMATIC

NON–INVERTING

INPUT Q1

Q3 Q4

Q5 Q6

1KΩR3

50KΩR2

1KΩ

Q9 Q13

39KΩ

Q10 Q11 Q22

V+

Q14

25Ω

OUTPUT

R10

50Ω

Q20

Q16

Q17

Q18 Q15

V–

R11

50Ω

R12

50kΩ

4.5Ω

7.5KΩ

5kΩ

30pF

Q12

OFFSET NULL

INVERTING INPUT

OFFSET NULL

Philips Semiconductors Linear Products Product specification

µA747CDual operational amplifier

August 31, 1994 55

ABSOLUTE MAXIMUM RATINGS

SYMBOL PARAMETER RATING UNIT

VSSupply voltage ±18 V

PDMAX Maximum power dissipation TA=25°C (still air)11500 mW

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

TAOperating 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

SYMBOL

PARAMETER

TEST CONDITIONS

Min Typ Max

UNIT

VOS Offset voltage RS≤10kΩ2.0 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.

RL≥10kΩ, over temp. ±10

±12 ±13

±14 V

ICC Supply current each side 1.7 2.8 mA

Over temperature 2.0 3.3 mA

PdPower 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

Over temperature 25,000

15,000 V/V

V/V

CMRR Common-mode rejection ratio RS≤10kΩ, VCM=±12V

Over temperature 70 dB

Philips Semiconductors Linear Products Product specification

µA747CDual operational amplifier

August 31, 1994 56

AC ELECTRICAL CHARACTERISTICS

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

SYMBOL

PARAMETER

TEST CONDITIONS

µA747C

UNIT

SYMBOL

PARAMETER

TEST CONDITIONS

Min Typ Max

UNIT

Transient response VIN=20mV, RL=2kΩ, CL<100pF

tRRise time Unity gain CL≤100pF 0.3 µs

Overshoot Unity gain CL≤100pF 5.0 %

SR Slew rate RL>2kΩ0.5 V/µs

TYPICAL PERFORMANCE CHARACTERISTICS

COMMON MODE VOLTAGE RANGE — V

–55oC < TA< +125oC

05 10 15 20

SUPPLY VOLTAGE — +V

Frequency Characteristics as a

Function of Supply Voltage

VOLTAGE GAIN

VS= + 15V

TA= 25oC

106

105

104

103

102

1 10 100 1K 10K 100K 1M 10M

FREQUENCY — Hz

Open–Looped Voltage Gain

as a Function of Frequency

PHASE DEGREES

1 10 100 1K 10K 100K 1M 10M

VS= + 15V

TA= 25oC

–45

–90

–135

–180

FREQUENCY — Hz

Open–Looped Voltage Response

as a Function of Frequency

PEAK–TO–PEAK OUTPUT SWING — V

0100 1k 10k 100k 1M

FREQUENCY — Hz

VS= + 15V

TA= 25oC

RL= 10kΩ

Output Voltage Swing

as a Function of Frequency

115

110

105

100

800 4 8 12 15 20

SUPPLY VOLTAGE — +V

VOLTAGE GAIN — dB

TA= 25OC

Open–Loop Voltage Gain as a

Function of Supply Voltage

PEAK TO PEAK OUTPUT SWING — V

–55oC < TA< +125oC

RL> 2kΩ

05 10 15 20

SUPPLY VOLTAGE — +V

Output Voltage Swing as a

Function of Supply Voltage

OUTPUT — mV

0 0.5 1.0 1.5 2.0 2.5

TIME — µs

VS= + 15V

TA= 25oC

RL= 2kΩ

CL= 100pF

10%

RISE TIME

Transient Response

–2

–4

–6

–8

–10 0 10 20 30 40 50 60 70 80 90

TIME — µS

OUTPUT

INPUT

VS= + 15V

TA= 25oC

OUTPUT VOLTAGE — V

Voltage-follower Large-Signal

Pulse Response

1.4

1.2

1.0

0.8

0.6 5 10 15 20

SUPPLY VOLTAGE — +V

RELATIVE VALUE

TRANSIENT RESPONSE

SLEW RATE

CLOSED

LOOP

BANDWIDTH

TA= 25oC

Input Common–Mode Voltage Range

as a Function of Supply voltage

–1

Philips Semiconductors Linear Products Product specification

µA747CDual operational amplifier

August 31, 1994 57

TYPICAL PERFORMANCE CHARACTERISTICS(Continued)

Power Consumption as a Function

of Ambient Temperature

Output Short–Circuit Current

as a Function of

Ambient Temperature

RELATIVE VALUE

Frequency Characteristics as a

Function of Ambient Temperature

1.4

1.2

1.0

0.8

0.6

TRANSIENT RESPONSE

–60 –20 20 80 100 140

TEMPERATURE — oC

VS= + 15V

CLOSED LOOP

BANDWIDTH

SLEW RATE

POWER CONSUMPTION — mW

TA= 25oC

100

05 10 15 20

TA= 25oC

SUPPLY VOLTAGE — +V

Power Consumption as a

Function of Supply Voltage

INPUT BIAS CURRENT — nA

VS= +15V

500

400

300

200

100

–60 –20 20 60 100 140

TEMPERATURE — oC

Input Bias Current as a Function

of Ambient Temperature

INPUT RESISTANCE — MΩ

10.0

5.0

3.0

1.0

0.5

0.3

0.1

–60 –20 20 60 100 140

TEMPERATURE — oC

Input Resistance as a Function

of Ambient Temperature

VS= + 15V

05 10 15 20

SUPPLY VOLTAGE — +V

INPUT OFFSET CURRENT — nA

TA= 25oC

Input Offset Current as a

Function of Supply Voltage 140

120

100

–60 –20 20 60 100 140

TEMPERATURE — oC

INPUT OFFSET CURRENT — nA

VS= + 15V

Input Offset Current as a Function

of Ambient Temperature

–60 –20 20 60 100 140

TEMPERATURE — oC

POWER CONSUMPTION — mW

VS= + 15V

PEAK–TO–PEAK OUTPUT SWING — V

VS= +15V

TA= 25oC

80.1 0.2 0.5 1.0 2.0 5.0 10

LOAD RESISTANCE — kΩ

Output Voltage Swing as a

Function of Load Resistance

SHORT CIRCUIT CURRENT — mA

–60 –20 20 60 100 140

TEMPERATURE — oC

Philips Semiconductors Linear Products Product specification

µA747CDual operational amplifier

August 31, 1994 58

TYPICAL PERFORMANCE CHARACTERISTICS(Continued)

MEAN SQUARE VOLTAGE — V Hz

10 –13

10 –14

10 –15

10 –16

10 –17

10 –18 10 100 1K 10K 100K

FREQUENCY — Hz

VS= + 15V

TA= 25oC

MEAN SQUARE VOLTAGE — V Hz

MEAN SQUARE NOISE CURRENT

10 –21

10 –22

10 –23

10 –24

10 –25

10 –26 10 100 1K 10K 100K

FREQUENCY — Hz

Broadband Noise for

Various Bandwidths

TOTAL NOISE REFERRED TO INPUT — Vrmsµ

10–1kHz

100

0.1

100 1K 10K 100K

10–100kHz

10–10kHz

SOURCE RESISTANCE — Ω

VS= + 15V

TA= 25oC

Input Noise Current

as a Function of Frequency

Input Noise Voltage

as a Function of Frequency

VS= + 15V

TA= 25oC

TEST CIRCUITS

–

µA747C

VIN CLRL

VOUT

10KΩ

–V

–

µA747C

Transient Response Test Circuit

Voltage Offset Null Circuit

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