Burr Brown OPA3681E-2K5, OPA3681U, OPA3681E-250, OPA3681U-2K5 Datasheet

26

23

20

17

14

11

8

5

Frequency (Hz)

0.1M 1M 10M 100M 1G

f

–3dB

DIFFERENTIAL TO SINGLE-ENDED

FREQUENCY RESPONSE

Gain (dB)

Triple Wideband, Current-Feedback

OPERATIONAL AMPLIFIER With Disable

OPA3681

®

FEATURES

●

WIDEBAND +5V OPERATION: 225MHz (G = +2)

●

UNITY GAIN STABLE: 280MHz (G = 1)

● HIGH OUTPUT CURRENT: 150mA

● OUTPUT VOLTAGE SWING: ±4.0V

● HIGH SLEW RATE: 2100V/µs

● LOW SUPPLY CURRENT: 6mA/ch

● LOW DISABLED CURRENT: 300µA/ch

● IMPROVED HIGH FREQUENCY PINOUT

APPLICATIONS

● RGB AMPLIFIERS

● WIDEBAND INA

● BROADBAND VIDEO BUFFERS

● HIGH SPEED IMAGING CHANNELS

● PORTABLE INSTRUMENTS

● ADC BUFFERS

● ACTIVE FILTERS

● CABLE DRIVERS

DESCRIPTION

The OPA3681 sets a new level of performance for broadband
triple current-feedback op amps. Operating on a very low
6mA/ch supply current, the OPA3681 offers a slew rate and
output power normally associated with a much higher supply
current. A new output stage architecture delivers a high output
current with minimal voltage headroom and crossover distor­tion. This gives exceptional single-supply operation. Using a
single +5V supply, the OPA3681 can deliver a 1V to 4V output
swing with over 100mA drive current and 150MHz bandwidth.
This combination of features makes the OPA3681 an ideal RGB
line driver or single-supply ADC input driver.

The OPA3681’s low 6mA/ch supply current is precisely trimmed
at 25°C. This trim, along with low drift over temperature,
guarantees lower guaranteed maximum supply current than
competing products. System power may be further reduced by
using the optional disable control pin. Leaving this disable pin
open, or holding it high, gives normal operation. If pulled low,
the OPA3681 supply current drops to less than 300µA/ch while
the output goes into a high impedance state. This feature may be
used for power savings or for video MUX applications.

©

1999 Burr-Brown Corporation PDS-1452B Printed in U.S.A. September, 1999

TM

OPA3681 RELATED PRODUCTS

SINGLES DUALS TRIPLES

Voltage Feedback OPA680 OPA2680 OPA3680
Current Feedback OPA681 OPA2681 OPA3681
Fixed Gain OPA682 OPA2682 OPA3682

OPA3681

OPA3681

66.5Ω

High Speed INA (>120MHz)

499Ω

499Ω

301Ω

301Ω

1/3

OPA3681

1/3

OPA3681

1/3

OPA3681

V

1

10 (V1 – V2)

V

2

+5

–5

+5

–5

+5

–5

250Ω

250Ω

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

For most current data sheet and other product

information, visit www.burr-brown.com

2

®

OPA3681

SPECIFICATIONS: VS = ±5V

RF = 499Ω, RL = 100Ω, and G = +2, (Figure 1 for AC performance only), unless otherwise noted.

OPA3681E, U

TYP GUARANTEED

0°C to –40°C to

MIN/

TEST

PARAMETER CONDITIONS +25°C +25°C

(2)

70°C

(3)

+85°C

(3)

UNITS MAX

LEVEL

(1)

AC PERFORMANCE (Figure 1)

Small Signal Bandwidth (VO = 0.5Vp-p) G = +1, RF = 549Ω 280 MHz typ C

G = +2, R

F

= 499Ω 220 220 210 190 MHz min B

G = +5, R

F

= 365Ω 185 MHz typ C

G = +10, R

F

= 182Ω 125 MHz typ C

Bandwidth for 0.1dB Gain Flatness G = +2, V

O

= 0.5Vp-p 90 50 45 45 MHz min B

Peaking at a Gain of +1 R

F

= 453, VO = 0.5Vp-p 0.4 2 4 dB max B
Large Signal Bandwidth G = +2, VO = 5Vp-p 150 MHz typ C
Slew Rate G = +2, 4V Step 2100 1600 1600 1200 V/µs min B
Rise/Fall Time G = +2, V

O

= 0.5V Step 1.7 ns typ C

G = +2, 5V Step 2.0 ns typ C

Settling Time to 0.02% G = +2, V

O

= 2V Step 12 ns typ C

0.1% G = +2, V

O

= 2V Step 8 ns typ C

Harmonic Distortion G = +2, f = 5MHz, V

O

= 2Vp-p

2nd Harmonic R

L

= 100Ω –75 dBc typ C

R

L

≥ 500Ω –81 dBc typ C

3rd Harmonic R

L

= 100Ω –80 dBc typ C

RL ≥ 500Ω –95 dBc typ C
Input Voltage Noise f > 1MHz 2.2 3.0 3.4 3.6 nV/√Hz max B
Non-Inverting Input Current Noise f > 1MHz 12 14 15 15 pA/√Hz max B
Inverting Input Current Noise f > 1MHz 15 18 18 19 pA/√Hz max B
Differential Gain G = +2, NTSC, V

O

= 1.4Vp, RL = 150Ω 0.001 % typ C

R

L

= 37.5Ω 0.005 % typ C

Differential Phase G = +2, NTSC, VO = 1.4Vp, RL = 150Ω 0.01 deg typ C

R

L

= 37.5Ω 0.05 deg typ C

Crosstalk Input Referred, f = 5MHz, All Hostile –55 dBc typ C

DC PERFORMANCE

(4)

Open-Loop Transimpedance Gain (ZOL)

VO = 0V, RL = 100Ω 100 56 56 56 kΩ min A

Input Offset Voltage V

CM

= 0V ±1.3 ±5 ±6.5 ±7.5 mV max A

Average Offset Voltage Drift V

CM

= 0V +35 +40 µV/°C max B

Non-Inverting Input Bias Current V

CM

= 0V +30 +55 ±65 ±85 µA max A

Average Non-Inverting Input Bias Current Drift V

CM

= 0V –400 –450 nA/°C max B

Inverting Input Bias Current V

CM

= 0V ±10 ±40 ±50 ±55 µA max A

Average Inverting Input Bias Current Drift VCM = 0V –125 –150 nA°/C max B

INPUT

Common-Mode Input Range

(5)

±3.5 ±3.4 ±3.3 ±3.2 V min A

Common-Mode Rejection (CMR) V

CM

= 0V 52 47 46 45 dB min A
Non-Inverting Input Impedance 100 || 2 kΩ || pF typ C
Inverting Input Resistance (R

I

) Open Loop 42 Ω typ C

OUTPUT

Voltage Output Swing No Load ±4.0

±3.8 ±3.7 ±3.6 V min A

RL = 100Ω±3.9 ±3.7 ±3.6 ±3.3 V min A

Current Output, Sourcing V

O

= 0 +190 +160 +140 +80 mA min A

Current Output, Sinking V

O

= 0 –150 –135 –130 –80 mA min A

Closed-Loop Output Impedance G = +2, f = 100kHz 0.03 Ω typ C

DISABLE

(Disabled Low)

Power Down Supply Current (+VS)V

DIS

= 0, All Channels –900 µA typ C
Disable Time 100 ns typ C
Enable Time 25 ns typ C
Off Isolation G = +2, 5MHz 70 dB typ C
Output Capacitance in Disable 4 pF typ C
Turn On Glitch G = +2, R

L

= 150Ω, VIN = 0 ±50 mV typ C

Turn Off Glitch G = +2, R

L

= 150Ω, VIN = 0 ±20 mV typ C
Enable Voltage 3.3 3.5 3.6 3.7 V min A
Disable Voltage 1.8 1.7 1.6 1.5 V max A
Control Pin Input Bias Current (DIS) V

DIS

= 0, Each Channel 100 160 160 160 µA max A

POWER SUPPLY

Specified Operating Voltage ±5 V typ C
Maximum Operating Voltage Range

±6 ±6 ±6 V max A

Max Quiescent Current (3 Channels) V

S

= ±5V 18 19.2 19.5 19.8 mA max A

Min Quiescent Current (3 Channels) V

S

= ±5V 18 16.8 16.5 15.0 mA min A

Power Supply Rejection Ratio (–PSRR) Input Referred 58 52 50 49 dB min A

TEMPERATURE RANGE

Specification: E, U

–40 to +85

°C typ C

Thermal Resistance,

θ

JA

E SSOP-16 100 °C/W typ C
U SO-16 100 °C/W typ C

NOTES: (1) Test Levels: (A) 100% tested at 25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation.
(C) Typical value only for information. (2) Junction temperature = ambient for 25°C guaranteed specifications. (3) Junction temperature = ambient at low temperature
limit: Junction temperature = ambient +23°C at high temperature limit for over temperature guaranteed specifications. (4) Current is considered positive out of node.
V

CM

is the input common-mode voltage. (5) Tested < 3dB below minimum specified CMR at ± CMIR limits.

3

®

OPA3681

SPECIFICATIONS: VS = +5V

RF = 499Ω, RL = 100Ω to VS/2, G = +2, (Figure 2 for AC performance only), unless otherwise noted.

OPA3681E, U

TYP GUARANTEED

0°C to –40°C to

MIN/

TEST

PARAMETER CONDITIONS +25°C +25°C

(2)

70°C

(3)

+85°C

(3)

UNITS MAX

LEVEL

(1)

AC PERFORMANCE (Figure 2)

Small Signal Bandwidth (VO = 0.5Vp-p) G = +1, RF = 549Ω 250 MHz typ C

G = +2, R

F

= 499Ω 225 180 140 110 MHz min B

G = +5, R

F

= 365Ω 180 MHz typ C

G = +10, R

F

= 182Ω 165 MHz typ C

Bandwidth for 0.1dB Gain Flatness G = +2, V

O

< 0.5Vp-p 100 50 35 23 MHz min B

Peaking at a Gain of +1 R

F

= 649Ω, VO < 0.5Vp-p 0.4 2 4 dB max B
Large Signal Bandwidth G = +2, VO = 2Vp-p 200 MHz typ C
Slew Rate G = +2, 2V Step 830 700 680 570 V/µs min B
Rise/Fall Time G = +2, V

O

= 0.5V Step 1.5 ns typ C

G = +2, V

O

= 2V Step 2.0 ns typ C

Settling Time to 0.02% G = +2, V

O

= 2V Step 14 ns typ C

0.1% G = +2, V

O

= 2V Step 9 ns typ C

Harmonic Distortion G = +2, f = 5MHz, V

O

= 2Vp-p

2nd Harmonic R

L

= 100Ω to VS/2 –75 dBc typ C

R

L

≥ 500Ω to VS/2 –79 dBc typ C

3rd Harmonic R

L

= 100Ω to VS/2 –68 dBc typ C

RL ≥ 500Ω to VS/2 –70 dBc typ C
Input Voltage Noise f > 1MHz 2.2 3 3.4 3.6 nV/√Hz max B
Non-Inverting Input Current Noise f > 1MHz 12 14 14 15 pA/√Hz max B
Inverting Input Current Noise f > 1MHz 15 18 18 19 pA/√Hz max B

DC PERFORMANCE

(4)

Open-Loop Transimpedance Gain (ZOL)

VO = VS/2, RL = 100Ω to VS/2 100 60 53 51 kΩ min A

Input Offset Voltage V

CM

= 2.5V ±1 ±5 ±6.0 ±7 mV max A

Average Offset Voltage Drift V

CM

= 2.5V +15 +20 µV/°C max B

Non-Inverting Input Bias Current V

CM

= 2.5V +40 +65 +75 +95 µA max A

Average Non-Inverting Input Bias Current Drift V

CM

= 2.5V –300 –350 nA/°C max B
Inverting Input Bias Current VCM = 2.5V ±5 ±20 ±25 ±35 µA max A
Average Inverting Input Bias Current Drift V

CM

= 2.5V –125 –175 nA/°C max B

INPUT

Least Positive Input Voltage

(5)

1.5 1.6 1.7 1.8 V max A

Most Positive Input Voltage

(5)

3.5 3.4 3.3 3.2 V min A

Common-Mode Rejection (CMR) V

CM

= VS/2 51 45 44 44 dB min A
Non-Inverting Input Impedance 100 || 2 kΩ || pF typ C
Inverting Input Resistance (RI)

Open Loop 44 Ω typ C

OUTPUT

Most Positive Output Voltage No Load 4 3.8 3.7 3.5 V min A

R

L

= 100Ω, 2.5V 3.9 3.7 3.6 3.4 V min A

Least Positive Output Voltage No Load 1 1.2 1.3 1.5 V max A

R

L

= 100Ω, 2.5V 1.1 1.3 1.4 1.6 V max A

Current Output, Sourcing V

O

= VS/2 150 110 110 60 mA min A
Current Output, Sinking VO = VS/2 –110 –75 –70 –50 mA min A
Closed-Loop Output Impedance G = +2, f = 100kHz 0.03 Ω typ C

DISABLE (Disable Low)

Power Down Supply Current (+V

S

)V

DIS

= 0, All Channels –750 µA typ C
Disable Time 100 ns typ C
Enable Time 25 ns typ C
Off Isolation G = +2, 5MHz 65 dB typ C
Output Capacitance in Disable 4 pF typ C
Turn On Glitch G = +2, R

L

= 150Ω, VIN = VS /2 ±50 mV typ C

Turn Off Glitch G = +2, R

L

= 150Ω, VIN = VS /2 ±20 mV typ C
Enable Voltage 3.3 3.5 3.6 3.7 V min A
Disable Voltage 1.8 1.7 1.6 1.5 V max A
Control Pin Input Bias Current (DIS) V

DIS

= 0, Each Channel 100 µA typ C

POWER SUPPLY

Specified Single Supply Operating Voltage 5 V typ C
Maximum Single Supply Operating Voltage 12 12 12 V max A
Max Quiescent Current (3 Channels) V

S

= +5V 14.4 15.9 16.2 16.2 mA max A

Min Quiescent Current (3 Channels) V

S

= +5V 14.4 12.3 11.1 10.8 mA min A

Power Supply Rejection Ratio (+PSRR) Input Referred 48 dB typ C

TEMPERATURE RANGE

Specification: E, U

–40 to +85

°C typ C

Thermal Resistance,

θ

JA

E SSOP-16 100 °C/W typ C
U SO-16 100 °C/W typ C

NOTES: (1) Test Levels: (A) 100% tested at 25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and simulation.
(C) Typical value only for information. (2) Junction temperature = ambient for 25°C guaranteed specifications. (3) Junction temperature = ambient at low temperature
limit: Junction temperature = ambient +23°C at high temperature limit for over temperature guaranteed specifications. (4) Current is considered positive out of node.
V

CM

is the input common-mode voltage. (5) Tested < 3dB below minimum specified CMR at ±CMIR limits.

4

®

OPA3681

Power Supply ..............................................................................±6.5VDC

Internal Power Dissipation

(1)

............................ See Thermal Information

Differential Input Voltage .................................................................. ±1.2V

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

S

Storage Temperature Range: E, U ................................ –40°C to +125°C

Lead Temperature (soldering, 10s) .............................................. +300°C

Junction Temperature (T

J

) ........................................................... +175°C

NOTE:: (1) Packages must be derated based on specified

θ

JA

. Maximum T

J

must be observed.

ABSOLUTE MAXIMUM RATINGS

ELECTROSTATIC
DISCHARGE SENSITIVITY

Electrostatic discharge can cause damage ranging from perfor­mance degradation to complete device failure. Burr-Brown Corpo­ration recommends that all integrated circuits be handled and stored
using appropriate ESD protection methods.

ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes
could cause the device not to meet published specifications.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.

PIN CONFIGURATION

Top View SSOP-16, SO-16

PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT

PRODUCT PACKAGE NUMBER

(1)

RANGE MARKING NUMBER MEDIA

OPA3681E SSOP-16 Surface Mount 322 –40°C to +85°C OPA3681E OPA3681E/250 Tape and Reel

"""""OPA3681E/2K5 Tape and Reel

OPA3681U SO-16 Surface Mount 265 –40°C to +85°C OPA3681U OPA3681U Rails

"""""OPA3681U/2K5 Tape and Reel

NOTES: (1) For detailed drawing and dimension table, please see end of data sheet. (2) Models with a slash (/) are available only in Tape and Reel in the quantities
indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “OPA3681E/2K5” will get a single 2500-piece Tape and Reel.

PACKAGE/ORDERING INFORMATION

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

–IN A

+IN A

DIS B

–IN B

+IN B

DIS C

–IN C

+IN C

DIS A

+V

S

OUT A

–V

S

OUT B

+V

S

OUT C

–V

S

OPA3681

5

®

OPA3681

TYPICAL PERFORMANCE CURVES: VS = ±5V

G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).

2

1

0
–1
–2
–3
–4
–5
–6
–7
–8

Frequency (25MHz/div)

0 250MHz125MHz

SMALL-SIGNAL FREQUENCY RESPONSE

Normalized Gain (1dB/div)

G = +10, RF = 182Ω

G = +5, RF = 365Ω

G = +1, RF = 549Ω

VO = 0.5Vp-p

G = +2, RF = 499Ω

8
7
6
5
4
3
2
1

0
–1
–2

Frequency (25MHz/div)

0 250MHz125MHz

LARGE-SIGNAL FREQUENCY RESPONSE

Gain (1dB/div)

2Vp-p

G = +2, RL = 100Ω

1Vp-p

4Vp-p

7Vp-p

400
300
200
100

0
–100
–200
–300
–400

SMALL-SIGNAL PULSE RESPONSE

Time (5ns/div)

Output Voltage (100mV/div)

G = +2

V

O

= 0.5Vp-p

+4
+3
+2
+1

0
–1
–2
–3
–4

LARGE-SIGNAL PULSE RESPONSE

Time (5ns/div)

Output Voltage (1V/div)

G = +2

V

O

= 5Vp-p

5.0

4.0

2.0
0

2.0

1.6

1.2

0.8

0.4
0

LARGE-SIGNAL DISABLE/ENABLE RESPONSE

Time (50ns/div)

Output Voltage (400mV/div)

6.0

4.0

2.0
0

V

DIS

(2V/div)

V

DIS

Output Voltage

G = +2

V

IN

= +1V

ALL HOSTILE CROSSTALK

–20
–30
–40
–50
–60
–70
–80
–90

–100

Frequency (MHz)

0.3 10 1001 300

Crosstalk (dB)

6

®

OPA3681

TYPICAL PERFORMANCE CURVES: VS = ±5V (Cont.)

G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).

–60

–65

–70

–75

–80

–85

–90

5MHz 2nd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage Swing (Vp-p)

0.1 1 10

2nd Harmonic Distortion (dBc)

RL = 200Ω

RL = 500Ω

RL = 100Ω

5MHz 3rd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

3rd Harmonic Distortion (dBc)

–50

–60

–70

–80

–90

10.1 5

Output Voltage (Vp-p)

RL = 200Ω

RL = 500Ω

RL = 100Ω

10MHz 2nd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

2nd Harmonic Distortion (dBc)

–50

–60

–70

–80

–90

10.1 5

Output Voltage (Vp-p)

RL = 200Ω

RL = 500Ω

RL = 100Ω

10MHz 3rd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

3rd Harmonic Distortion (dBc)

–50

–60

–70

–80

–90

10.1 5

Output Voltage (Vp-p)

RL = 200Ω

RL = 500Ω

RL = 100Ω

20MHz 2nd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

2nd Harmonic Distortion (dBc)

–50

–60

–70

–80

–90

10.1 5

Output Voltage (Vp-p)

RL = 200Ω

RL = 500Ω

RL = 100Ω

20MHz 3rd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

3rd Harmonic Distortion (dBc)

–50

–60

–70

–80

–90

10.1 5

Output Voltage (Vp-p)

RL = 200Ω

RL = 500Ω

RL = 100Ω

7

®

OPA3681

TYPICAL PERFORMANCE CURVES: VS = ±5V (Cont.)

G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).

100

10

1

INPUT VOLTAGE AND CURRENT NOISE DENSITY

Frequency (Hz)

100 1k 10k 100k 1M 10M

Current Noise (pA/√Hz)

Voltage Noise (nV/√Hz)

Non-Inverting Input Current Noise

Inverting Input Current Noise

12.2pA/√Hz

15.1pA/√Hz

Voltage Noise

2.2nV/√Hz

–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90

TWO-TONE, 3RD-ORDER

INTERMODULATION SPURIOUS

Single-Tone Load Power (dBm)

–8–6–4–20246810

3rd-Order Spurious Level (dBc)

dBc = dB below carriers

50MHz

20MHz

10MHz

Load Power at Matched 50Ω Load

60

50

40

30

20

10

0

RECOMMENDED R

S

vs CAPACITIVE LOAD

Capacitive Load (pF)

1 10 100

R

S

(Ω)

15
12

9
6
3

0
–3
–6
–9

–12
–15

Frequency (30MHz/div)

0 300MHz150MHz

FREQUENCY RESPONSE vs CAPACITIVE LOAD

Gain to Capacitive Load (3dB/div)

R

S

V

IN

V

O

C

L

1kΩ

499Ω

499Ω

1kΩ is optional.

CL = 22pF

CL = 10pF

CL = 47pF

CL = 100pF

3rd HARMONIC DISTORTION

vs FREQUENCY

3rd Harmonic Distortion (dBc)

–50

–60

–70

–80

–90

1010.1 20

Frequency (MHz)

VO = 2Vp-p

R

L

= 100Ω

G = +2, RF = 499Ω

G = +5, RF = 365Ω

G = +10, RF = 182Ω

–40

–50

–60

–70

–80

–90

Frequency (MHz)

0.1 1 10 20

2nd Harmonic Distortion (dBc)

VO = 2Vp-p
R

L

= 100Ω

G = +2, RF = 402Ω

G = +10, RF = 180Ω

G = +5, RF = 261Ω

2nd HARMONIC DISTORTION

vs FREQUENCY