LT1399CGN#PBF Datasheet LT1399CS#PBF, LT1399IGN#PBF, LT1399HVCS#PBF | P1-P3

1

LT1398/LT1399/LT1399HV

sn13989 13989fas

Low Cost Dual and Triple

300MHz Current Feedback

Amplifiers with Shutdown

3-Input Video MUX Cable Driver

The LT

®

1399 and LT1399HV contain three independent

300MHz current feedback amplifiers, each with a shut-

down pin. The LT1399HV is a higher voltage version of the

LT1399. The LT1398 is a two amplifier version of the

LT1399.

The LT1398/LT1399 operate on all supplies from a single

4V to ±6V. The LT1399HV operates on all supplies from 4V

to ±7.5V.

Each amplifier draws 4.6mA when active. When disabled

each amplifier draws zero supply current and its output be-

comes high impedance. The amplifiers turn on in only 30ns

and turn off in 40ns, making them ideal in spread spectrum

and portable equipment applications.

The LT1398/LT1399/LT1399HV are manufactured on Lin-

ear Technology’s proprietary complementary bipolar pro-

cess. The LT1399/LT1399HV are pin-for-pin upgrades to

the LT1260 optimized for use on ±5V/±7.5V supplies.

■

300MHz Bandwidth on ±5V (A

V

= 1, 2 and –1)

■

0.1dB Gain Flatness: 150MHz (A

V

= 1, 2 and –1)

■

Completely Off in Shutdown, 0µA Supply Current

■

High Slew Rate: 800V/µs

■

Wide Supply Range:

±2V(4V) to ±6V(12V) (LT1398/LT1399)

±2V (4V) to ±7.5V (15V) (LT1399HV)

■

80mA Output Current

■

Low Supply Current: 4.6mA/Amplifier

■

Fast Turn-On Time: 30ns

■

Fast Turn-Off Time: 40ns

■

16-Pin Narrow SO/Narrow SSOP Packages

■

RGB Cable Drivers

■

LCD Drivers

■

Spread Spectrum Amplifiers

■

MUX Amplifiers

■

Composite Video Cable Drivers

■

Portable Equipment

, LTC and LT are registered trademarks of Linear Technology Corporation.

Square Wave Response

OUTPUT

200mV/DIV

TIME (10ns/DIV)

1398/99 TA02

R

L

= 100Ω

R

F

= R

G

= 324Ω

f = 10MHz

FEATURES

DESCRIPTIO

U

APPLICATIO S

U

TYPICAL APPLICATIO

U

–

+

1/3 LT1399

R

G

200Ω

R

F

324Ω

A

EN A

V

IN A

–

+

1/3 LT1399

R

G

200Ω

R

F

324Ω

EN B

V

IN B

BC

CHANNEL

SELECT

97.6Ω

–

+

1/3 LT1399

R

G

200Ω

R

F

324Ω

EN C

V

IN C

97.6Ω

75Ω

V

OUT

75Ω

CABLE

1399 TA01

2

LT1398/LT1399/LT1399HV

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The ● denotes specifications which apply over the specified operating temperature range, otherwise specifications are at T

A

= 25°C.

For each amplifier: V

CM

= 0V, V

S

= ±5V, EN = 0V, pulse tested, unless otherwise noted. (Note 4)

A

U

G

W

A

W

U

W

ARB

S

O

LU

T

EXI T

I

S

(Note 1)

Total Supply Voltage (V

+

to V

–

)

LT1398/LT1399 ................................................ 12.6V

LT1399HV ....................................................... 15.5V

Input Current (Note 2) ....................................... ±10mA

Output Current................................................. ±100mA

Differential Input Voltage (Note 2) ........................... ±5V

Output Short-Circuit Duration (Note 3)........ Continuous

Operating Temperature Range (Note 9)... –40°C to 85°C

Specified Temperature Range (Note 4).. –40°C to 85°C

Storage Temperature Range ................ –65°C to 150°C

Junction Temperature (Note 5)............................ 150°C

Lead Temperature (Soldering, 10 sec)................. 300°C

WU

U

PACKAGE

/

O

RDER I FOR ATIO

ORDER PART

NUMBER

LT1399CGN

LT1399CS

LT1399HVCS

LT1399IGN

LT1399IS

T

JMAX

= 150°C, θ

JA

= 120°C/W (GN)

T

JMAX

= 150°C, θ

JA

= 100°C/W (S)

*Ground pins are not internally connected. For best channel isolation, connect to ground. Consult factory for parts specified with wider operating

temperature ranges.

ORDER PART

NUMBER

LT1398CS

T

JMAX

= 150°C, θ

JA

= 100°C/W

1

2

3

4

5

6

7

8

TOP VIEW

16

15

14

13

12

11

10

9

–IN A

+IN A

*GND

+IN B

–IN B

EN A

OUT A

V

+

GND*

V

–

OUT B

EN B

A

S PACKAGE

16-LEAD PLASTIC SO

B

E

LECTR

IC

AL C CHARA TERIST

ICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

Input Offset Voltage 1.5 10 mV

● 12 mV

∆V

OS

/∆T Input Offset Voltage Drift ● 15 µV/°C

I

IN

+

Noninverting Input Current 10 25 µA

● 30 µA

I

IN

–

Inverting Input Current 10 50 µA

● 60 µA

e

n

Input Noise Voltage Density f = 1kHz, R

F

= 1k, R

G

= 10Ω, R

S

= 0Ω 4.5 nV/√Hz

+i

n

Noninverting Input Noise Current Density f = 1kHz 6 pA/√Hz

–i

n

Inverting Input Noise Current Density f = 1kHz 25 pA/√Hz

R

IN

Input Resistance V

IN

= ±3.5V ● 0.3 1 MΩ

C

IN

Input Capacitance Amplifier Enabled 2.0 pF

Amplifier Disabled 2.5 pF

C

OUT

Output Capacitance Amplifier Disabled 8.5 pF

V

INH

Input Voltage Range, High V

S

= ±5V ● 3.5 4.0 V

V

S

= 5V, 0V 4.0 V

1

2

3

4

5

6

7

8

TOP VIEW

16

15

14

13

12

11

10

9

–IN R

+IN R

*GND

–IN G

+IN G

*GND

+IN B

–IN B

EN R

OUT R

V

+

EN G

OUT G

V

–

OUT B

EN B

R

G

S PACKAGE

16-LEAD PLASTIC SO

GN PACKAGE

16-LEAD PLASTIC SSOP

B

GN PART MARKING

1399

1399I

(LT1398/LT1399)

3

LT1398/LT1399/LT1399HV

sn13989 13989fas

E

LECTR

IC

AL C CHARA TERIST

ICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

INL

Input Voltage Range, Low V

S

= ±5V ● –3.5 –4.0 V

V

S

= 5V, 0V 1.0 V

V

OUTH

Maximum Output Voltage Swing, High V

S

= ±5V, R

L

= 100k 3.9 4.2 V

V

S

= ±5V, R

L

= 100k ● 3.7 V

V

S

= 5V, 0V; R

L

= 100k 4.2 V

V

OUTL

Maximum Output Voltage Swing, Low V

S

= ±5V, R

L

= 100k –3.9 –4.2 V

V

S

= ±5V, R

L

= 100k ● –3.7 V

V

S

= 5V, 0V; R

L

= 100k 0.8 V

V

OUTH

Maximum Output Voltage Swing, High V

S

= ±5V, R

L

= 150Ω 3.4 3.6 V

V

S

= ±5V, R

L

= 150Ω ● 3.2 V

V

S

= 5V, 0V; R

L

= 150Ω 3.6 V

V

OUTL

Maximum Output Voltage Swing, Low V

S

= ±5V, R

L

= 150Ω –3.4 –3.6 V

V

S

= ±5V, R

L

= 150Ω ● –3.2 V

V

S

= 5V, 0V; R

L

= 150Ω 0.6 V

CMRR Common Mode Rejection Ratio V

CM

= ±3.5V ● 42 52 dB

–I

CMRR

Inverting Input Current V

CM

= ±3.5V 10 16 µA/V

Common Mode Rejection V

CM

= ±3.5V ● 22 µA/V

PSRR Power Supply Rejection Ratio V

S

= ±2V to ±5V, EN = V

–

● 56 70 dB

+I

PSRR

Noninverting Input Current V

S

= ±2V to ±5V, EN = V

–

12 µA/V

Power Supply Rejection

● 3 µA/V

–I

PSRR

Inverting Input Current V

S

= ±2V to ±5V, EN = V

–

● 27 µA/V

Power Supply Rejection

A

V

Large-Signal Voltage Gain V

OUT

= ±2V, R

L

= 150Ω 50 65 dB

R

OL

Transimpedance, ∆V

OUT

/∆I

IN

–

V

OUT

= ±2V, R

L

= 150Ω 40 100 kΩ

I

OUT

Maximum Output Current R

L

= 0Ω ● 80 mA

I

S

Supply Current per Amplifier V

OUT

= 0V ● 4.6 6.5 mA

Disable Supply Current per Amplifier EN Pin Voltage = 4.5V, R

L

= 150Ω ● 0.1 100 µA

I

EN

Enable Pin Current 30 110 µA

● 200 µA

SR Slew Rate (Note 6) A

V

= 10, R

L

= 150Ω 500 800 V/µs

t

ON

Turn-On Delay Time (Note 7) R

F

= R

G

= 324Ω, R

L

= 100Ω 30 75 ns

t

OFF

Turn-Off Delay Time (Note 7) R

F

= R

G

= 324Ω, R

L

= 100Ω 40 100 ns

t

r

, t

f

Small-Signal Rise and Fall Time R

F

= R

G

= 324Ω, R

L

= 100Ω, V

OUT

= 1V

P-P

1.3 ns

t

PD

Propagation Delay R

F

= R

G

= 324Ω, R

L

= 100Ω, V

OUT

= 1V

P-P

2.5 ns

os Small-Signal Overshoot R

F

= R

G

= 324Ω, R

L

= 100Ω, V

OUT

= 1V

P-P

10 %

t

S

Settling Time 0.1%, A

V

= –1, R

F

= R

G

= 309Ω, R

L

= 150Ω 25 ns

dG Differential Gain (Note 8) R

F

= R

G

= 324Ω, R

L

= 150Ω 0.13 %

dP Differential Phase (Note 8) R

F

= R

G

= 324Ω, R

L

= 150Ω 0.10 DEG

The ● denotes specifications which apply over the specified operating temperature range, otherwise specifications are at T

A

= 25°C.

For each amplifier: V

CM

= 0V, V

S

= ±5V, EN = 0V, pulse tested, unless otherwise noted. (Note 4)

(LT1398/LT1399)

LT1399CGN#PBF

LT1399CGN#PBF

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