Texas Instruments UA748CP Datasheet

uA748C, uA748M

GENERAL-PURPOSE OPERATIONAL AMPLIFIERS

SLOS095 – D921, DECEMBER 1970 – REVISED OCTOBER 1990

• Frequency and Transient Response

Characteristics Adjustable

• Short-Circuit Protection

• Offset-Voltage Null Capability

• Wide Common-Mode and Differential

Voltage Ranges

• Low Power Consumption

• No Latch-Up

• Same Pin Assignments as uA709

description

The uA748 is a general-purpose operational amplifier that offers the same advantages and attractive features as the uA741 except for internal compensation. External compensation can be as simple as a 30-pF capacitor for unity-gain conditions and, when the closed-loop gain is greater than one, can be changed to obtain wider bandwidth or higher slew rate. This circuit features high gain, large differential and common-mode input voltage range, and output short-circuit protection. Input offset-voltage adjustment can be provided by connecting a variable resistor between the offset null pins as shown in Figure 12.

The uA748C is characterized for operation from 0°C to 70°C; the uA748M is characterized for operation over the full military temperature range of –55°C to 125°C.

symbol

uA748C ...D OR P PACKAGE

uA748M . . . JG PACKAGE

(TOP VIEW)

N1/COMP

IN – IN +

CC –

uA748M ...U FLAT PACKAGE

N1/COMP

IN +

CC –

NC – No internal connection

COMP

N1/COMP

IN+

IN–

IN –

1 2 3 4

(TOP VIEW)

10 2 3 4 5

–

9 8 7 6

8 7 6 5

COMP V

CC +

OUT N2

NC COMP V

CC +

OUT N2

OUT

AVAILABLE OPTIONS

PACKAGE

VIO max 8-PIN 10-PIN

AT 25°C

0°C

70°C

–55°C

125°C

The D package is available taped and reeled. Add the suffix R to the device type,(e.g., uA748CDR).

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

6 mV uA748CD — uA748CP —

5 mV — uA748MJG — uA747MU

SMALL OUTLINE

(D)

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

CERAMIC DIP

(JG)

PLASTIC DIP

(P)

FLAT PACK

(U)

uA748C, uA748M GENERAL-PURPOSE OPERATIONAL AMPLIFIERS

SLOS095 – D921, DECEMBER 1970 – REVISED OCTOBER 1990

schematic

IN–

IN+

1 kΩ 50 kΩ 1 kΩ

N1/COMP

Resistor values shown are nominal.

COMP

34 Ω

CC+

OUT

CC–

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

uA748C uA748M UNIT

Supply voltage, V Supply voltage, V Differential input voltage (see Note 2)

Input voltage (either input, see Notes 1 and 3) Voltage range between either offset null terminal (N1/N2) and V Duration of output short circuit (see Note 4) unlimited unlimited

Continuous total power dissipation See Dissipation Rating Table Operating free-air temperature range 0 to 70 –55 to 125 °C Storage temperature range –65 to 150 –65 to 150 °C Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds JG or U package 300 °C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds D or P package 260 °C

NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between V

2. Differential voltages are at the noninverting input terminal with respect to the inverting input terminal.

3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15V, whichever is less.

4. The output may be shorted to ground or either power supply. For the uA748M only, the unlimited duration of the short circuit applies at (or below) 125

(see Note 1) 18 22 V

CC+

(see Note 1) –18 –22 V

CC–

±30 V ±15 V

–0.5 V

CC–

CC +

±30 ±15

–0.5 to 2

and V

CC –

°C case temperature or 75°C free-air temperature

DISSIPATION RATING TABLE

PACKAGE

D 500 mW 5.8 mW/°C 64°C 464 mW N/A

JG 500 mW 8.4 mW/°C90°C 500 mW 210 mW

P 500 mW N/A N/A 500 mW N/A U 500 mW 5.4 mW/°C 57°C 432 mW 135 mW

TA ≤ 25°C

POWER RATING

DERATING

FACTOR

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

DERATE

ABOVE T

TA = 70°C

POWER RATING

TA = 125°C

POWER RATING

uA748C, uA748M

PARAMETER

TEST CONDITIONS

†

UNIT

VIOInput offset voltage

IIOInput offset current

IIBInput bias current

V/mV

roOutput resistance

25°C7575

Ω

CMRR

SVS

sensitivity

V/V

ICCSupply current

No load

100 pF

See Figure 1

GENERAL-PURPOSE OPERATIONAL AMPLIFIERS

SLOS095 – D921, DECEMBER 1970 – REVISED OCTOBER 1990

electrical characteristics at specified free-air temperature, V

MIN TYP MAX MIN TYP MAX

ICR

O(PP)

SVS

†

All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified. Full range for uA748C is 0

NOTE 5: This typical value applies only at frequencies above a few hundred hertz because of the effects of drift and thermal feedback.

Common-mode 25°C ±12 ±13 ±12 ±13 input voltage range Full range ±12 ±12

Maximum peak RL ≥ 10 kΩ Full range ±12 ±12 output voltage swing RL= 2 kΩ 25°C ±10 ±13 ±10 ±13

Large-signal differential voltage amplification

Input resistance 25°C 0.3 2 0.3 2 MΩ

Input capacitance 25°C 1.4 1.4 pF Common-mode

rejection ratio Supply-voltage

(∆VIO/ ∆VCC) Short-circuit

output current

Power dissipation (each amplifier)

°C to 70°C and for uA748M is –55°C to 125°C.

RL= 10 kΩ 25°C ±12 ±14 ±12 ±14

RL ≥ 2 kΩ Full range ±10 ±10 RL ≥ 2 kΩ, 25°C 20 200 50 200 VO = ± 10 V

VO = 0, See Note 5

VIC = V VO = 0

VCC = ± 9 V to ± 15 V, VO = 0

min, 25°C 70 90 70 90

ICR

25°C 1 6 1 5

Full range 7.5 6

25°C 20 200 20 200

Full range 300 500

25°C 80 500 80 500

Full range 800 1500

Full range 15 25

Full range 70 70

25°C 30 150 30 150

Full range 150 150

25°C ±25 ±40 ±25 ±40 mA 25°C 1.7 2.8 1.7 2.8

Full range 3.3 3.3

25°C 50 85 50 85

Full range 100 100

= ±15 V, CC = 30 pF

CC ±

uA748C uA748M

operating characteristics, V

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Rise time

Overshoot factor

SR Slew rate at unity gain VI = 10 V, RL = 2 kΩ, CL = 100 pF, CC = 30 pF, See Figure 1 0.5 V/µs

= 20 mV,

= ± 15 V, TA = 25°C

CC ±

= 2 kΩ,

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

= 30 pF,

0.3 µs 5%

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