Linear Technology LT1223 Datasheet

LT1223

100MHz Current

Feedback Amplifier

EATU

F

■

100MHz Bandwidth at AV = 1

■

1000V/µs Slew Rate

■

Wide Supply Range: ±5V to ±15V

■

1mV Input Offset Voltage

■

1µA Input Bias Current

■

5MΩ Input Resistance

■

75ns Settling Time to 0.1%

■

50mA Output Current

■

6mA Quiescent Current

PPLICATI

A

■

Video Amplifiers

■

Buffers

■

IF and RF Amplification

■

Cable Drivers

■

8-, 10-, 12-Bit Data Acquisition Systems

RE

S

O

U
S

DUESCRIPTIO

The LT1223 is a 100MHz current feedback amplifier with
very good DC characteristics. The LT1223’s high slew
rate, 1000V/µs, wide supply range, ±15V, and large output
drive, ±50mA, make it ideal for driving analog signals over
double- terminated cables. The current feedback amplifier
has high gain bandwidth at high gains, unlike conventional
op amps.

The LT1223 comes in the industry standard pinout and
can upgrade the performance of many older products.

The LT1223 is manufactured on Linear Technology’s
proprietary complementary bipolar process.

CA

A

PPLICATITYPI

L

V

+

IN

LT1223

–

RG
1k

RF

A = 1 +

V

R

AT AMPLIFIER OUTPUT.
6dB LESS AT V .

U

O

Video Cable Driver Voltage Gain vs Frequency

60

Ω

75

75



R

F

1k

G

OUT

Ω

CABLE

Ω

75

LT1223 • TA02

V

OUT

50

40

30

20

10

VOLTAGE GAIN (dB)

0

–10

–20

100k

RG = 10

R

= 33

G

= 110

R

G

R

= 470

G

R

= ∞

G

100MHz GAIN 
BANDWIDTH

1M

10M 100M 1G

FREQUENCY (Hz)

+

–

1k

R

G

LT1223 • TPC01

1

LT1223

WU

U

PACKAGE

/

O

RDER I FOR ATIO

W

O

A

LUTEXI T

S

Supply Voltage ...................................................... ±18V

Differential Input Voltage ......................................... ±5V

Input Voltage ............................ Equal to Supply Voltage

Output Short Circuit Duration (Note 1) .........Continuous

Operating Temperature Range

LT1223M........................................ –55°C to 125°C

LT1223C................................................ 0°C to 70°C

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

Junction Temperature Plastic Package...........150°C

Junction Temperature Ceramic Package ........ 175°C

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

LECTRICAL C CHARA TERIST

E

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

I

+ Noninverting Input Current VCM = 0V ±1 ±3 µA

IN

IIN– Inverting Input Current VCM = 0V ±1 ±3 µA
e

n

i

n

R

IN

C

IN

CMRR Common-Mode Rejection Ratio VCM = ±10V 56 63 dB

PSRR Power Supply Rejection Ratio VS = ±4.5V to ±18V 68 80 dB

A

V

R

OL

V

OUT

I

OUT

SR Slew Rate RF = 1.5k, RG = 1.5k, (Note 2) 800 1300 V/µs
BW Bandwidth RF = 1k, RG = 1k, V
t

r

t

PD

t

s

R

OUT

I

S

Input Offset Voltage VCM = 0V ±1 ±3mV

Input Noise Voltage Density f = 1kHz, RF = 1k, RG = 10Ω 3.3 nV/√Hz
Input Noise Current Density f = 1kHz, RF = 1k, RG = 10Ω 2.2 pA/√Hz
Input Resistance VIN = ±10V 1 10 MΩ
Input Capacitance 1.5 pF
Input Voltage Range ±10 ±12 V

Inverting Input Current Common-Mode Rejection VCM = ±10V 30 100 nA/ V

Noninverting Input Current Power Supply Rejection VS = ±4.5V to ±18V 12 100 nA/V
Inverting Input Current Power Supply Rejection VS = ±4.5V to ±18V 60 500 nA/V
Large Signal Voltage Gain R
Transresistance, ∆V
Maximum Output Voltage Swing R
Maximum Output Current R

Rise Time RF = 1.5k, RG = 1.5k, V
Propagation Delay RF = 1.5k, RG = 1.5k, V
Overshoot RF = 1.5k, RG = 1.5k, V
Settling Time, 0.1% RF = 1k, RG = 1k, V
Differential Gain RF = 1k, RG = 1k, RL = 150Ω 0.02 %
Differential Phase RF = 1k, RG = 1k, RL = 150Ω 0.12 Deg
Open-Loop Output Resistance V
Supply Current VIN = 0V 6 10 mA
Supply Current, Shutdown Pin 8 Current = 200µA24mA

A

WUW

ARB

/∆IIN–R

OUT

U
G

S

I

1NULL
2

–IN
+IN

3

–

V

J8 PACKAGE

8-LEAD CERAMIC DIP

8-LEAD PLASTIC SOIC

T

= 175°C, θJA = 100°C/W(J8)

J MAX

T

= 150°C, θJA = 100°C/W(N8)

J MAX

T

= 150°C, θJA = 150°C/W(S8)

J MAX

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

ICS

= 400Ω, V

LOAD

= 400Ω, V

LOAD

= 200Ω±10 ±12 V

LOAD

= 200Ω 50 60 mA

LOAD

= 0, I

OUT

OUT

= ±10V 70 89 dB

OUT

= ±10V 1.5 5 MΩ

OUT

= 100mV 100 MHz

OUT

OUT

OUT

OUT

= 10V 75 ns

OUT

= 0 35 Ω

TOP VIEW

SHUTDOWN

8

+

7

V

6

OUT

54

NULL

N8 PACKAGE

8-LEAD PLASTIC DIP

S8 PACKAGE

LT1223 • POI01

LT1223M/C

= 1V 6.0 ns
= 1V 6.0 ns
= 1V 5 %

ORDER PART

NUMBER

LT1223MJ8
LT1223CJ8
LT1223CN8
LT1223CS8

S8 PART MARKING

1223

2

LT1223

LECTRICAL C CHARA TERIST

E

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

I

+ Noninverting Input Current VCM = 0V ● ±1 ±3 µA

IN

IIN– Inverting Input Current VCM = 0V ● ±1 ±3 µA
R

IN

CMRR Common-Mode Rejection Ratio VCM = ±10V ● 56 63 dB

PSRR Power Supply Rejection Ratio VS = ±4.5V to ±18V ● 68 80 dB

A

V

R

OL

V

OUT

I

OUT

I

S

Input Offset Voltage VCM = 0V ● ±1 ±3mV

Input Resistance VIN = ±10V ● 110 MΩ
Input Voltage Range ● ±10 ±12 V

Inverting Input Current Common-Mode Rejection VCM = ±10V ● 30 100 nA/V

Noninverting Input Current Power Supply Rejection VS = ±4.5V to ±18V ● 12 100 nA/V
Inverting Input Current Power Supply Rejection VS = ±4.5V to ±18V ● 60 500 nA/ V
Large-Signal Voltage Gain R
Transresistance, ∆V
Maximum Output Voltage Swing R
Maximum Output Current R
Supply Current VIN = 0V ● 610 mA
Supply Current, Shutdown Pin 8 Current = 200µA ● 24 mA

/∆IIN–R

OUT

VS = ±15V, VCM = 0V, 0°C ≤ TA ≤ 70°C, unless otherwise noted.

ICS

= 400Ω, V

LOAD

= 400Ω, V

LOAD

= 200Ω ● ±10 ±12 V

LOAD

= 200Ω ● 50 60 mA

LOAD

= ±10V ● 70 89 dB

OUT

= ±10V ● 1.5 5 MΩ

OUT

LT1223C

LECTRICAL C CHARA TERIST

E

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

I

+ Noninverting Input Current VCM = 0V ● ±1 ±5 µA

IN

IIN– Inverting Input Current VCM = 0V ● ±1 ±10 µA
R

IN

CMRR Common-Mode Rejection Ratio VCM = ±10V ● 56 63 dB

PSRR Power Supply Rejection Ratio VS = ±4.5V to ±15V ● 68 80 dB

A

V

R

OL

V

OUT

I

OUT

I

S

● denotes the specifications which apply over the full operating

The
temperature range.

Note 1: A heat sink may be required.
Note 2: Noninverting operation, V

Input Offset Voltage VCM = 0V ● ±1 ±5mV

Input Resistance VIN = ±10V ● 110 MΩ
Input Voltage Range ● ±10 ±12 V

Inverting Input Current Common-Mode Rejection VCM = ±10V ● 30 100 nA/V

Noninverting Input Current Power Supply Rejection VS = ±4.5V to ±15V ● 12 200 nA/V
Inverting Input Current Power Supply Rejection VS = ±4.5V to ±15V ● 60 500 nA/V
Large-Signal Voltage Gain R
Transresistance, ∆V
Maximum Output Voltage Swing R
Maximum Output Current R
Supply Current VIN = 0V ● 610 mA
Supply Current, Shutdown Pin 8 Current = 200µA ● 24 mA

/∆IIN–R

OUT

= ±10V, measured at ±5V.

OUT

VS = ±15V, VCM = 0V, –55°C ≤ TA ≤ 125°C, unless otherwise noted.

ICS

LT1223M

= 400Ω, V

LOAD

= 400Ω, V

LOAD

= 200Ω ● ±7 ±12 V

LOAD

= 200Ω ● 35 60 mA

LOAD

= ±10V ● 70 89 dB

OUT

= ±10V ● 1.5 5 MΩ

OUT

3

LT1223

COMMON MODE VOLTAGE (V)

–15

–10

–l ( A)

–6

–2

2

6

10

LT1223 • TPC07

–10 –5 0 5 10 15

125°C

µ

–8

–4

0

4

8

–55°C

±V = 15V

S

25°C

B

CASE TEMPERATURE (°C)

–50

0

OUTPUT SHORT CIRCUIT CURRENT (mA)

30

100

LT1223 • TPC04

–25 0 25 50 75 100 125

10

20

40

50

60

70

80

90

SUPPLY VOLTAGE ( V)

0

–20

OUTPUT VOLTAGE SWING (V)

–10

–5

10

20

LT1223 • TPC10

2 4 6 8 101214161820

±

125°C

–15

0

5

15

25°C

25°C

125°C

–55°C

–55°C

UW

Y

PICA

10

8

6

4

SUPPLY CURRENT (mA)

2

LPER

F

O

R

AT

CCHARA TERIST

E

C

ICS

Supply Current vs Supply Voltage, Supply Current vs Supply Voltage Output Short Circuit-Current vs
VIN = 0 (Operating) (Shutdown) Temperature

4

125°C

25°C

–55°C

PIN 8 = 0V

3

125°C

2

SUPPLY CURRENT (mA)

1

25°C

–55°C

0

2 4 6 8 101214161820

0

SUPPLY VOLTAGE ( V)

Input Common-Mode Limit vs
Temperature +IB vs Common-Mode Voltage –IB vs Common-Mode Voltage

V+
–1

–2

–3

V = 5V

S

–4

+4

+3

V = –15V

+2

COMMON MODE RANGE (V)

S

+1
V–

–50 –25 0 25 50 75 100 125

TEMPERATURE (°C)

VOS vs Common-Mode Voltage Load Resistor Supply Voltage

20

15

10

5

0

OS

V (mV)

–5

–10

–15

–20

–15

4

125°C

–55°C

–10 –5 0 5 10 15

COMMON MODE VOLTAGE (V)

25°C

±

LT1223 • TPC02

V = 15V

S

V = –5V

S

LT1223 • TPC05

V = 15V

S

LT1223 • TPC08

0

2 4 6 8 101214161820

0

±

–55°C

LT1223 • TPC03

V = ±15V

S

LT1223 • TPC06

5
4

3
2
1

µ

0

B

+l ( A)

–1

–2
–3

–4
–5

–15

SUPPLY VOLTAGE ( V)

25°C

125°C

–10 –5 0 5 10 15

COMMON MODE VOLTAGE (V)

Output Voltage Swing vs Output Voltage Swing vs

20

±

V = 15VS±

15

10

5

0

–5

–10

OUTPUT VOLTAGE SWING (V)

–15

–20

100

LOAD RESISTOR ( )

125°C

25°C, –55°C

25°C, –55°C

125°C

1000 10000

Ω

LT1223 • TPC09