Linear Technology LT1360 Datasheet

FEATURES

■

50MHz Gain Bandwidth

■

800V/µs Slew Rate

■

5mA Maximum Supply Current

■

9nV/√Hz Input Noise Voltage

■

Unity-Gain Stable

■

C-LoadTM Op Amp Drives All Capacitive Loads

■

1mV Maximum Input Offset Voltage

■

1µA Maximum Input Bias Current

■

250nA Maximum Input Offset Current

■

±13V Minimum Output Swing into 500Ω

■

±3.2V Minimum Output Swing into 150Ω

■

4.5V/mV Minimum DC Gain, RL=1k

■

60ns Settling Time to 0.1%, 10V Step

■

0.2% Differential Gain, AV=2, RL=150Ω

■

0.3° Differential Phase, AV=2, RL=150Ω

■

Specified at ±2.5V, ±5V, and ±15V

U

APPLICATIO S

■

Wideband Amplifiers

■

Buffers

■

Active Filters

■

Video and RF Amplification

■

Cable Drivers

■

Data Acquisition Systems

LT1360

50MHz, 800V/µs Op Amp

U

DESCRIPTIO

The LT1360 is a high speed, very high slew rate opera­tional amplifier with excellent DC performance. The LT1360
features reduced supply current, lower input offset volt­age, lower input bias current and higher DC gain than
devices with comparable bandwidth. The circuit topology
is a voltage feedback amplifier with the slewing character­istics of a current feedback amplifier. The amplifier is a
single gain stage with outstanding settling characteristics
which makes the circuit an ideal choice for data acquisition
systems. The output drives a 500Ω load to ±13V with ±15V
supplies and a 150Ω load to ±3.2V on ±5V supplies. The
amplifier is also capable of driving any capacitive load
which makes it useful in buffer or cable driver applications.

The LT1360 is a member of a family of fast, high
performance amplifiers using this unique topology and
employing Linear Technology Corporation’s advanced
bipolar complementary processing. For dual and quad
amplifier versions of the LT1360 see the LT1361/LT1362
data sheet. For 70MHz amplifiers with 6mA of supply
current per amplifier see the LT1363 and LT1364/LT1365
data sheets. For lower supply current amplifiers with
bandwidths of 12MHz and 25MHz see the LT1354
through LT1359 data sheets. Singles, duals and quads of
each amplifier are available.

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

C-Load is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO

Two Op Amp Instrumentation Amplifier

R5

220Ω

R1

10k

–

V

IN

+





R

4

GAIN

=





R

3









TRIM R5 FOR GAIN
TRIM R1 FOR COMMON-MODE REJECTION
BW = 500kHz

–

+







+

1











R2
1k

LT1360





RRR

12213

+









R3
1k

RR

+

23



()

+



R

R

4

5



U

AV = –1 Large-Signal Response

R4

10k

–

LT1360

V

OUT

+




=

102






1360 TA01

1360 TA02

1

LT1360

8
7
6
54

3

2

1NULL
–IN
+IN

V

–

NC

V

OUT

V

+

NULL

TOP VIEW

N8 PACKAGE, 8-LEAD PDIP

WW

W

ABSOLUTE MAXIMUM RATINGS

U

(Note 1)

Total Supply Voltage (V+ to V–) ............................... 36V

Differential Input Voltage

(Transient Only) (Note 2)................................... ±10V

Input Voltage ............................................................±V

Output Short Circuit Duration (Note 3) ............ Indefinite

U

W

U

PACKAGE/ORDER INFORMATION

ORDER PART

NUMBER

LT1360CN8

= 150°C, θJA = 130°C/ W

JMAX

Consult factory for Industrial and Military grade parts.

Operating Temperature Range (Note 8) ...–40°C to 85°C

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

Maximum Junction Temperature (See Below)

S

Plastic Package ................................................150°C

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

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

TOP VIEW

1NULL
2

–IN
+IN

3

–

V

S8 PACKAGE, 8-LEAD PLASTIC SO

T

= 150°C, θJA = 190°C/WT

JMAX

8
7
6
54

NULL

+

V
V

OUT

NC

ORDER PART

NUMBER

LT1360CS8

S8 PART MARKING

1360

T

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS V

V

OS

I

OS

I

B

e

n

i

n

R

IN

C

IN

CMRR Common Mode Rejection Ratio V

PSRR Power Supply Rejection Ratio VS = ±2.5V to ±15V 93 105 dB

Input Offset Voltage (Note 4) ±15V 0.3 1.0 mV

Input Offset Current ±2.5V to ±15V 80 250 nA
Input Bias Current ±2.5V to ±15V 0.3 1.0 µA
Input Noise Voltage f = 10kHz ±2.5V to ±15V 9 nV/√Hz
Input Noise Current f = 10kHz ±2.5V to ±15V 0.9 pA/√Hz
Input Resistance V
Input Resistance Differential ±15V 5 MΩ
Input Capacitance ±15V 3 pF
Input Voltage Range

Input Voltage Range

+

–

= ±12V ±15V 20 50 MΩ

CM

= ±12V ±15V 86 92 dB

CM

V

= ±2.5V ±5V 79 84 dB

CM

V

= ±0.5V ±2.5V 68 74 dB

CM

= 25°C, V

A

= 0V unless otherwise noted.

CM

SUPPLY

±5V 0.3 1.0 mV
±2.5V 0.4 1.2 mV

±15V 12.0 13.4 V
±5V 2.5 3.4 V
±2.5V 0.5 1.1 V

±15V –13.2 –12.0 V
±5V –3.2 –2.5 V
±2.5V –0.9 –0.5 V

MIN TYP MAX UNITS

2

ELECTRICAL CHARACTERISTICS

T

= 25°C, V

A

= 0V unless otherwise noted.

CM

LT1360

SYMBOL PARAMETER CONDITIONS V

A

V

I

I

VOL

OUT

OUT

SC

Large-Signal Voltage Gain V

= ±12V, RL = 1k ±15V 4.5 9.0 V/mV

OUT

V

= ±10V, RL = 500Ω±15V 3.0 6.5 V/mV

OUT

V

= ±2.5V, RL = 500Ω±5V 3.0 6.4 V/mV

OUT

V

= ±2.5V, RL = 150Ω±5V 1.5 4.2 V/mV

OUT

V

= ±1V, RL = 500Ω±2.5V 2.5 5.2 V/mV

OUT

Output Swing RL = 1k, V

RL = 500Ω, V
R

= 500Ω, V

L

RL = 150Ω, V
R

= 500Ω, V

L

Output Current V

Short-Circuit Current V

= ±13V ±15V 26 34 mA

OUT

V

= ±3.2V ±5V 21 29 mA

OUT

= 0V, V

OUT

= ±40mV ±15V 13.5 13.9 ±V

IN

= ±40mV ±15V 13.0 13.6 ±V

IN

= ±40mV ±5V 3.5 4.0 ±V

IN

= ±40mV ±5V 3.2 3.8 ±V

IN

= ±40mV ±2.5V 1.3 1.7 ±V

IN

= ±3V ±15V 40 54 mA

IN

SUPPLY

MIN TYP MAX UNITS

SR Slew Rate AV = –2, (Note 5) ±15V 600 800 V/µs

±5V 250 350 V/µs

Full Power Bandwidth 10V Peak, (Note 6) ±15V 12.7 MHz

3V Peak, (Note 6) ±5V 18.6 MHz

GBW Gain Bandwidth f = 1MHz ±15V 50 MHz

±5V 37 MHz
±2.5V 32 MHz

tr, t

f

Rise Time, Fall Time AV = 1, 10%-90%, 0.1V ±15V 3.1 ns

±5V 4.3 ns

Overshoot AV = 1, 0.1V ±15V 35 %

±5V 27 %

Propagation Delay 50% VIN to 50% V

, 0.1V ±15V 5.2 ns

OUT

±5V 6.4 ns

t

s

Settling Time 10V Step, 0.1%, AV = –1 ±15V 60 ns

10V Step, 0.01%, AV = –1 ±15V 90 ns
5V Step, 0.1%, A

= –1 ±5V 65 ns

V

Differential Gain f = 3.58MHz, AV = 2, RL = 150Ω±15V 0.20 %

±5V 0.20 %

f = 3.58MHz, A

= 2, RL = 1k ±15V 0.04 %

V

±5V 0.02 %

Differential Phase f = 3.58MHz, AV = 2, RL = 150Ω±15V 0.40 Deg

±5V 0.30 Deg

f = 3.58MHz, A

= 2, RL = 1k ±15V 0.07 Deg

V

±5V 0.26 Deg

R

O

I

S

Output Resistance AV = 1, f = 1MHz ±15V 1.4 Ω
Supply Current ±15V 4.0 5.0 mA

±5V 3.8 4.8 mA

3

LT1360

ELECTRICAL CHARACTERISTICS

0°C ≤ TA ≤ 70°C, V

SYMBOL PARAMETER CONDITIONS V

V

OS

Input Offset Voltage (Note 4) ±15V ● 1.5 mV

= 0V unless otherwise noted.

CM

The ● denotes the specifications which apply over the temperature range

SUPPLY

±5V
±2.5V

MIN TYP MAX UNITS

● 1.5 mV

● 1.7 mV

Input VOS Drift (Note 7) ±2.5V to ±15V ● 912 µV/°C

I

OS

I

B

CMRR Common Mode Rejection Ratio V

Input Offset Current ±2.5V to ±15V ● 350 nA
Input Bias Current ±2.5V to ±15V ● 1.5 µA

= ±12V ±15V ● 84 dB

CM

= ±2.5V ±5V ● 77 dB

V

CM

V

= ±0.5V ±2.5V ● 66 dB

CM

PSRR Power Supply Rejection Ratio VS = ±2.5V to ±15V ● 91 dB
A

V

I

I

VOL

OUT

OUT

SC

Large-Signal Voltage Gain V

= ±12V, RL = 1k ±15V ● 3.6 V/mV

OUT

= ±10V, RL = 500Ω±15V ● 2.4 V/mV

V

OUT

= ±2.5V, RL = 500Ω±5V ● 2.4 V/mV

V

OUT

V

= ±2.5V, RL = 150Ω±5V ● 1.0 V/mV

OUT

V

= ±1V, RL = 500Ω±2.5V ● 2.0 V/mV

OUT

Output Swing RL = 1k, V

= 500Ω, V

R

L

R

= 500Ω, V

L

= 150Ω, V

R

L

= 500Ω, V

R

L

Output Current V

Short-Circuit Current V

= ±12.8V ±15V ● 25 mA

OUT

V

= ±3.1V ±5V ● 20 mA

OUT

= 0V, V

OUT

= ±40mV ±15V ● 13.4 ±V

IN

= ±40mV ±15V ● 12.8 ±V

IN

= ±40mV ±5V ● 3.4 ±V

IN

= ±40mV ±5V ● 3.1 ±V

IN

= ±40mV ±2.5V ● 1.2 ±V

IN

= ±3V ±15V ● 32 mA

IN

SR Slew Rate AV = –2, (Note 5) ±15V ● 475 V/µs

±5V

I

S

Supply Current ±15V ● 5.8 mA

● 185 V/µs

±5V ● 5.6 mA

4

LT1360

ELECTRICAL CHARACTERISTICS

–40°C ≤ TA ≤ 85°C, V

SYMBOL PARAMETER CONDITIONS V

V

OS

Input Offset Voltage (Note 4) ±15V ● 2.0 mV

= 0V unless otherwise noted. (Note 9)

CM

The ● denotes the specifications which apply over the temperature range

SUPPLY

±5V
±2.5V

MIN TYP MAX UNITS

● 2.0 mV

● 2.2 mV

Input VOS Drift (Note 7) ±2.5V to ±15V ● 912 µV/°C

I

OS

I

B

CMRR Common Mode Rejection Ratio V

Input Offset Current ±2.5V to ±15V ● 400 nA
Input Bias Current ±2.5V to ±15V ● 1.8 µA

= ±12V ±15V ● 84 dB

CM

= ±2.5V ±5V ● 77 dB

V

CM

= ±0.5V ±2.5V ● 66 dB

V

CM

PSRR Power Supply Rejection Ratio VS = ±2.5V to ±15V ● 90 dB
A

V

I

I

VOL

OUT

OUT

SC

Large-Signal Voltage Gain V

= ±12V, RL = 1k ±15V ● 2.5 V/mV

OUT

= ±10V, RL = 500Ω±15V ● 1.5 V/mV

V

OUT

= ±2.5V, RL = 500Ω±5V ● 1.5 V/mV

V

OUT

V

= ±2.5V, RL = 150Ω±5V ● 0.6 V/mV

OUT

= ±1V, RL = 500Ω±2.5V ● 1.3 V/mV

V

OUT

Output Swing RL = 1kΩ, V

= 500Ω, V

R

L

R

= 500Ω, V

L

= 150Ω, V

R

L

= 500Ω, V

R

L

Output Current V

Short-Circuit Current V

= ±12.0V ±15V ● 24 mA

OUT

V

= ±3.0V ±5V ● 20 mA

OUT

= 0V, V

OUT

= ±40mV ±15V ● 13.4 ±V

IN

= ±40mV ±15V ● 12.0 ±V

IN

= ±40mV ±5V ● 3.4 ±V

IN

= ±40mV ±5V ● 3.0 ±V

IN

= ±40mV ±2.5V ● 1.2 ±V

IN

= ±3V ±15V ● 30 mA

IN

SR Slew Rate AV = –2, (Note 5) ±15V ● 450 V/µs

±5V

I

S

Supply Current ±15V ● 6.0 mA

● 175 V/µs

±5V ● 5.8 mA

Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.

Note 2: Differential inputs of ±10V are appropriate for transient operation
only, such as during slewing. Large, sustained differential inputs will cause
excessive power dissipation and may damage the part. See Input
Considerations in the Applications Information section of this data sheet
for more details.

Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefinitely.

Note 4: Input offset voltage is pulse tested and is exclusive of warm-up drift.
Note 5: Slew rate is measured between ±10V on the output with ±6V input

for ±15V supplies and ±2V on the output with ±1.75V input for ±5V supplies.

Note 6: Full power bandwidth is calculated from the slew rate
measurement: FPBW = SR/2πV

.

P

Note 7: This parameter is not 100% tested.
Note 8: The LT1360C is guaranteed functional over the operating

temperature range of –40°C to 85°C.
Note 9: The LT1360C is guaranteed to meet specified performance from

0°C to 70°C. The LT1360C is designed, characterized and expected to
meet specified performance from –40°C to 85°C, but is not tested or QA
sampled at these temperatures. For guaranteed I-grade parts, consult the
factory.

5