Texas Instruments TL026CP, TL026CPSR, TL026CDR, TL026CD Datasheet

TL026C

DIFFERENTIAL HIGH-FREQUENCY AMPLIFIER WITH AGC

SLFS007A – JUNE 1985 – REVISED JUL Y 1990

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Low Output Common-Mode Sensitivity to
AGC V oltages

D

Input and Output Impedances Independent
of AGC Voltage

D

Peak Gain . . . 38 dB Typ

D

Wide AGC Range . . . 50 dB Typ

D

3-dB Bandwidth . . . 50 MHz

D

Other Characteristics Similar to NE592 and
uA733

description

This device is a monolithic two-stage high­frequency amplifier with differential inputs and
outputs.

Internal feedback provides wide bandwidth, low phase distortion, and excellent gain stability. Variable gain
based on signal summation provides large AGC control over a wide bandwidth with low harmonic distortion.
Emitter-follower outputs enable the device to drive capacitive loads. All stages are current-source biased to
obtain high common-mode and supply-voltage rejection ratios. The gain may be electronically attenuated by
applying a control voltage to the AGC pin. No external compensation components are required.

This device is particularly useful in TV and radio IF and RF AGC circuits, as well as magnetic-tape and disk-file
systems where AGC is needed. Other applications include video and pulse amplifiers where a large AGC range,
wide bandwidth, low phase shift, and excellent gain stability are required.

The TL026C is characterized for operation from 0°C to 70°C.

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

†

Supply voltage, V

CC+

(see Note 1) 8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply voltage, V

CC–

(see Note 1) – 8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differential input voltage ±5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Common-mode input voltage ±6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output current ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range – 65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature range 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. This is a stress rating only, and
functional operation of the device at these or any other conditions beyond those indicated in the recommended operating conditions section of
this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability .

NOTE 1: All voltages are with respect to the midpoint of V

CC+

and V

CC–

except differential input and output voltages.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

OPERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

D 725 mW 5.8 mW/°C 464 mW
P 1000 mW 8.0 mW/°C 640 mW

Copyright  1990, Texas Instruments Incorporated

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.

IN–
REF OUT
V

CC

+

OUT–

1
2
3
4

8
7
6
5

IN+

AGC

V

CC

OUT+

D OR P PACKAGE

(TOP VIEW)

symbol

+

–

AGC

IN +
IN –

7
4
5

2
1
8

REF OUT
OUT+
OUT–

TL026C
DIFFERENTIAL HIGH-FREQUENCY AMPLIFIER WITH AGC

SLFS007A – JUNE 1985 – REVISED JUL Y 1990

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, VCC

+

3 6 8 V

Supply voltage, VCC

–

– 3 – 6 – 8 V

Operating free-air temperature range, T

A

0 70 °C

electrical characteristics at 25°C operating free-air temperature, V

CC+

= ±6 V , V

AGC

= 0, REF OUT pin

open (unless otherwise specified)

PARAMETER FIGURE TEST CONDITIONS MIN TYP MAX UNIT

A

VD

Large-signal differential voltage
amplification

1 V

O(PP)

= 3 V, RL = 2 kΩ 65 85 105 V/V

∆A

VD

Change in voltage amplification 1

V

IPP

= 28.5 mV , RL = 2 kΩ,

V

AGC

– V

ref

= ±180 mV

– 50 dB

V

ref

Voltage at REF OUT I

ref

= – 1 mA to 100 µA 1.3 1.5 V

BW Bandwidth (–3 dB) 2

V

O(PP)

= 1 V,

V

AGC

– V

ref

= ±180 mV

50 MHz

I

IO

Input offset current 0.4 5 µA

I

IB

Input bias current 10 30 µA

V

ICR

Common-mode input voltage range 3 ±1 V

V

OC

Common-mode output voltage 1 RL = ∞ 3.25 3.75 4.25 V

∆V

OC

Change in common-mode output voltage 1 V

AGC

= 0 to 2 V, RL = ∞ 300 mV

V

OO

Output offset voltage 1 VID = 0, RL = ∞ 0.75 V

V

O(PP)

Maximum peak-to-peak output voltage
swing

1 RL = 2 kΩ 3 4 V

r

i

Input resistance at AGC, IN+, or IN – 10 30 kΩ

r

o

Output resistance 20 Ω

VIC = ±1 V, f = 100 kHz 60 86

CMRR

Common-mode rejection ratio

3

VIC = ±1 V, f = 5 mHz 60

dB

k

SVR

Supply voltage rejection ratio
(∆VCC / ∆VIO)

4

∆VCC + = ± 0.5 V ,
∆VCC – = ± 0.5 V

50 70 dB

V

n

Broadband equivalent noise voltage 4 BW = 1 kHz to 10 MHz 12 µV

t

pd

Propagation delay time 2 ∆VO = 1 V 6 10 ns

t

r

Rise time 2 ∆VO = 1 V 4.5 12 ns

I

sink(max)

Maximum output sink current VID = 1 V, VO = 3 V 3 4 mA

I

CC

Supply current No load, No signal 22 27 mA

TL026C

DIFFERENTIAL HIGH-FREQUENCY AMPLIFIER WITH AGC

SLFS007A – JUNE 1985 – REVISED JUL Y 1990

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature range, V

CC

±

= ±6 V,

V

AGC

= 0, REF OUT pin open (unless otherwise specified)

PARAMETER FIGURE TEST CONDITIONS MIN TYP MAX UNIT

A

VD

Large-signal differential voltage amplification 1 V

O(PP)

= 3 V, RL = 2 kΩ 55 115 V/V

I

IO

Input offset current 6 µA

I

IB

Input bias current 40 µA

V

ICR

Common-mode input voltage range 3 ±1 V

V

OO

Output offset voltage 1 VID = 0, RL = ∞ 1.5 V

V

O(PP)

Maximum peak-to-peak output voltage swing 1 RL = 2 kΩ 2.8 V

r

i

Input resistance at AGC, IN+, or IN – 8 kΩ

CMRR Common-mode rejection ratio 3 VIC = ±1 V, f = 100 kHz 50 dB
k

SVR

Supply voltage rejection ratio
(∆VCC / ∆VIO)

4

∆VCC + = ± 0.5 V ,
∆VCC – = ± 0.5 V

50 dB

I

sink(max)

Maximum output sink current VID = 1 V, VO = 3 V 2.8 4 mA

I

CC

Supply current 1 No load, No signal 30 mA

PARAMETER MEASUREMENT INFORMATION

IN +

IN –

AGC

OUT +

OUT –

REF OUT

R

L

50 Ω 50 Ω

VOC+

V

O

)

)

V

O

*

2

+

–

V

AGC

V

ref

V

ID

V

OD

Figure 1. Test Circuit

1 kΩ1 kΩ

VO

+

VO

–

50 Ω 50 Ω

+

–

V

ID

0.2 µF

0.2 µF

Figure 2. Test Circuit

1 kΩ1 kΩ

VO

+

VO

–

50 Ω

50 Ω

+

–

0.2 µF

0.2 µF

V

IC

Figure 3. Test Circuit

RL = 2 kΩ

+

–

V

OD

Figure 4. Test Circuit