Burr Brown OPA635U, OPA634U-2K5, OPA635N-250, OPA634U, OPA634N-3K Datasheet

Wideband, Single Supply

OPERATIONAL AMPLIFIERS

®

OPA634
OPA635

© 1999 Burr-Brown Corporation PDS-1465A Printed in U.S.A. June, 1999

FEATURES

● HIGH BANDWIDTH: 150MHz (G = +2)

● +3V AND +5V OPERATION

● ZERO POWER DISABLE (OPA635)

● INPUT RANGE INCLUDES GROUND

● 4.8V OUTPUT SWING ON +5V SUPPLY

● HIGH OUTPUT CURRENT: 80mA

● HIGH SLEW RATE: 250V/µs

● LOW INPUT VOLTAGE NOISE: 5.6nV/√HZ

● AVAILABLE IN SOT23 PACKAGES

DESCRIPTION

The OPA634 and OPA635 are low power, voltage­feedback, high-speed amplifiers designed to operate on
+3V or +5V single-supply voltages. Operation on ±5V
or +10V supplies is also supported. The input range
extends below ground and to within 1.2V of the positive
supply. Using complementary common-emitter outputs
provides an output swing to within 30mV of ground and
140mV of positive supply. The high output drive cur­rent, low differential gain and phase errors make them
ideal for single-supply composite video line driving.

Low distortion operation is ensured by the high gain
bandwidth (140MHz) and slew rate (250V/µs). This
makes the OPA634 and OPA635 ideal input buffer
stages to 3V and 5V CMOS converters. Unlike other low
power, single-supply operational amplifiers, distortion
performance improves as the signal swing is decreased.

APPLICATIONS

● SINGLE SUPPLY ADC INPUT BUFFER

● SINGLE SUPPLY VIDEO LINE DRIVER

● WIRELESS LAN IF AMPLIFIER

● CCD IMAGING CHANNELS

● LOW POWER ULTRASOUND

TM

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]

A low 5.6nV input voltage noise supports wide dynamic
range operation. Multiplexing or system power reduc­tion can be achieved using the high-speed disable line
with the OPA635. Power dissipation can be reduced to
zero by taking the disable line High.

The OPA634 and OPA635 are available in an industry
standard SO-8 package. The OPA634 is also available in
an ultra-small SOT23-5 package, while the OPA635 is
available in the SOT23-6. Where lower supply current
and speed are required, consider the OPA631 and
OPA632.

OPA635

V

IN

750Ω562Ω

2.26kΩ

374Ω

22pF

+3V

100Ω

Pwrdn

DIS

Disable

+3V

ADS900

10-Bit

20Msps

OPA634

For most current data sheet and other product

information, visit www.burr-brown.com

SINGLES DUALS

Medium Speed, No Disable OPA631 OPA2631

With Disable OPA632 —

High Speed, No Disable OPA634 OPA2634

With Disable OPA635 —

RELATED PRODUCTS

2

®

OPA634, OPA635

OPA634U, N
OPA635U, N

TYP GUARANTEED

0°C to –40°C to

MIN/

TEST

PARAMETER CONDITIONS +25°C +25°C70°C +85°C UNITS MAX

LEVEL

(1)

SPECIFICATIONS: VS = +5V

At TA = 25°C, G = +2, RF = 750Ω, and RL = 150Ω to VS/2, unless otherwise noted (see Figure 1).

AC PERFORMANCE (Figure 1)

Small-Signal Bandwidth G = +2, V

O

≤ 0.5Vp-p 150 100 84 78 MHz min B

G = +5, V

O

≤ 0.5Vp-p 36 24 20 18 MHz min B

G = +10, V

O

≤ 0.5Vp-p 16 11 10 8 MHz min B
Gain Bandwidth Product G ≥ [phone] MHz min B
Peaking at a Gain of +1 V

O

≤ 0.5Vp-p 5 — — — dB typ C
Slew Rate G = +2, 2V Step 250 170 125 115 V/µs min B
Rise Time 0.5V Step 2.4 3.4 4.7 5.2 ns max B
Fall Time 0.5V Step 2.4 3.5 4.5 4.8 ns max B
Settling Time to 0.1% G = +2, 1V Step 15 19 22 23 ns max B
Spurious Free Dynamic Range V

O

= 2Vp-p, f = 5MHz 63 56 51 50 dBc min B
Input Voltage Noise f > 1MHz 5.6 6.2 7.3 7.7 nV/√Hz max B
Input Current Noise f > 1MHz 2.8 3.8 4.2 5 pA/√Hz max B
NTSC Differential Gain 0.10 — — — % typ C
NTSC Differential Phase 0.16 — — — degrees typ C

DC PERFORMANCE

Open-Loop Voltage Gain 66 63 60 53 dB min A
Input Offset Voltage 3 7 8 10 mV max A
Average Offset Voltage Drift — — — 4.6 µV/°C max B
Input Bias Current V

CM

= 2.0V 25 45 55 80 µA max B

Input Offset Current V

CM

= 2.0V 0.6 2 2.3 4 µA max B

Input Offset Current Drift — — — 15 nA/°C max B

INPUT

Least Positive Input Voltage –0.24 –0.1 –0.05 –0.01 V max B
Most Positive Input Voltage 3.8 3.5 3.45 3.4 V min A
Common-Mode Rejection (CMRR) Input Referred 78 75 73 65 dB min A
Input Impedance

Differential-Mode 10 || 2.1 — — — kΩ || pF typ C
Common-Mode 400 || 1.2 — — — kΩ || pF typ C

OUTPUT

Least Positive Output Voltage R

L

= 1kΩ to 2.5V 0.03 0.05 0.06 0.07 V max B

R

L

= 150Ω to 2.5V 0.1 0.14 0.15 0.22 V max A

Most Positive Output Voltage R

L

= 1kΩ to 2.5V 4.86 4.8 4.75 4.7 V min B

R

L

= 150Ω to 2.5V 4.65 4.55 4.5 4.4 V min A
Current Output, Sourcing 80 50 45 20 mA min A
Current Output, Sinking 100 80 65 20 mA min A
Short-Circuit Current (output shorted to either supply) 100 — — — mA typ C
Closed-Loop Output Impedance G = +2, f ≤ 100kHz 0.2 — — — Ω typ C

DISABLE (OPA635 only)

On Voltage

(device enabled Low) 1.0 1.0 1.0 1.0 V min A

Off Voltage

(device disabled High) 4.0 4.1 4.2 4.3 V max A
On Disable Current (DIS pin) 70 110 120 120 µA max A
Off Disable Current (DIS pin) 0 — — — µA typ C
Disabled Quiescent Current 0 30 40 50 µA max A
Disable Time 100 — — — ns typ C
Enable Time 60———nstypC
Off Isolation f = 5MHz, Input to Output 70 — — — dB typ C

POWER SUPPLY

Minimum Operating Voltage — 2.7 2.7 2.7 V min A
Maximum Operating Voltage — 10.5 10.5 10.5 V max A
Maximum Quiescent Current 12 12.5 13 13.25 mA max A
Minimum Quiescent Current 12 11.3 9.75 8.5 mA min A
Power Supply Rejection Ratio (PSRR) Input Referred 55 52 50 49 dB min A

THERMAL CHARACTERISTICS

Specification: U, N

–40 to +85

°C typ C

Thermal Resistance

U SO-8 125 °C/W typ C
N SOT23-5, SOT23-6 150 °C/W typ C

NOTE: (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.

3

®

OPA634, OPA635

OPA634U, N
OPA635U, N

TYP GUARANTEED

0°C to –40°C to

MIN/ TEST

PARAMETER CONDITIONS +25

°C +25°C70°C +85°C UNITS MAX

LEVEL

(1)

SPECIFICATIONS: VS = +3V

At TA = 25°C, G = +2 and RL = 150Ω to VS/2, unless otherwise noted (see Figure 2).

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.

AC PERFORMANCE (Figure 2)

Small-Signal Bandwidth G = +2, V

O

≤ 0.5Vp-p 110 77 65 58 MHz min B

G = +5, V

O

≤ 0.5Vp-p 39 24 20 19 MHz min B

G = +10, V

O

≤ 0.5Vp-p 16 12 10 8 MHz min B
Gain Bandwidth Product G ≥ [phone] MHz min B
Peaking at a Gain of +1 V

O

≤ 0.5Vp-p 5 — — — dB typ C
Slew Rate 1V Step 215 160 123 82 V/ µs min B
Rise Time 0.5V Step 2.8 4.3 4.5 6.3 ns max B
Fall Time 0.5V Step 3.0 4.4 4.6 6.0 ns max B
Settling Time to 0.1% 1V Step 14 30 32 38 ns max B
Spurious Free Dynamic Range V

O

= 1Vp-p, f = 5MHz 65 56 52 47 dBc min B
Input Voltage Noise f > 1MHz 5.6 6.2 7.3 7.7 nV/√Hz max B
Input Current Noise f > 1MHz 2.8 3.7 4.2 4.4 pA/√Hz max B

DC PERFORMANCE

Open-Loop Voltage Gain 67 64 60 56 dB min A
Input Offset Voltage 1.5 4 5 6 mV max A
Average Offset Voltage Drift — — — 46 µV/°C max B
Input Bias Current V

CM

= 1.0V 25 42 55 60 µA max B

Input Offset Current V

CM

= 1.0V 0.6 2 2.3 4 µA max B

Input Offset Current Drift — — — 40 nA/°C max B

INPUT

Least Positive Input Voltage –0.25 –0.1 –0.05 –0.01 V max B
Most Positive Input Voltage 1.8 1.6 1.55 1.5 V min A
Common-Mode Rejection (CMRR) Input Referred 75 67 64 61 dB min A
Input Impedance

Differential-Mode 10 || 2.1 — — — kΩ || p typ C
Common-Mode 400 || 1.2 — — — kΩ || p typ C

OUTPUT

Least Positive Output Voltage R

L

= 1kΩ to 1.5V 0.035 0.043 0.045 0.06 V max A

R

L

= 150Ω to 1.5V 0.06 0.08 0.09 0.13 V max A

Most Positive Output Voltage R

L

= 1kΩ to 1.5V 2.9 2.86 2.85 2.45 V min A

R

L

= 150Ω to 1.5V 2.8 2.70 2.69 2.65 V min A
Current Output, Sourcing 45 35 30 12 mA min A
Current Output, Sinking 65 30 27 10 mA min A
Short Circuit Current (output shorted to either supply) 100 — — — mA typ C
Closed-Loop Output Impedance Figure 2, f < 100kHz 0.2 — — — Ω typ C

DISABLE (OPA635 only)

On Voltage (device enabled Low)

1.0 0.5 0.5 0.5 V min A

Off Voltage

(device disabled High)

1.8 1.9 2.1 2.2 V max A
On Disable Current (DIS pin) 66 100 110 110 µA max A
Off Disable Current (DIS pin) 0 — — — µA typ C
Disabled Quiescent Current 0 30 40 50 µA max A
Disable Time 100 — — — ns typ C
Enable Time 60———nstypC
Off Isolation f = 5MHz, Input to Output 70 — — — dB typ C

POWER SUPPLY

Minimum Operating Voltage — 2.7 2.7 2.7 V min A
Maximum Operating Voltage — 10.5 10.5 10.5 V max A
Maximum Quiescent Current 10.8 11.1 11.4 11.6 mA max A
Minimum Quiescent Current 10.8 10.1 8.6 8.0 mA min A
Power Supply Rejection Ratio (PSRR) Input Referred 50 49 45 44 dB min A

THERMAL CHARACTERISTICS

Specification: U, N

–40 to +85

°C typ C

Thermal Resistance

U SO-8 125 °C/W typ C
N SOT23-5, SOT23-6 150 °C/W typ C

NOTE: (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.

4

®

OPA634, OPA635

1

2

3

4

8

7

6

5

NC

Inverting Input

Non-Inverting Input

GND

DIS (OPA635 only)

+V

S

Output

NC

PIN CONFIGURATIONS

Top View—OPA634, OPA635 SO-8

ABSOLUTE MAXIMUM RATINGS

Power Supply ................................................................................ +11V

DC

Internal Power Dissipation ....................................See Thermal Analysis

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

Input Voltage Range ............................................................... –0.5 to +V

S

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

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

Junction Temperature (T

J

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

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.

1

2

3

6

5

4

Output

GND

Non-Inverting Input

+V

S

DIS

Inverting Input

A35

1

2

3

6

5

4

Pin Orientation/Package Marking

Top View—OPA635 SOT23-6

PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT

PRODUCT PACKAGE NUMBER

(1)

RANGE MARKING NUMBER

(2)

MEDIA

OPA635U SO-8 Surface-Mount 182 –40°C to +85°C OPA635U OPA635U Rails

"""""OPA635U/2K5 Tape and Reel

OPA635N 6-Lead SOT23-6 332 –40°C to +85°C A35 OPA635N/250 Tape and Reel

"""""OPA635N/3K Tape and Reel

OPA634U SO-8 Surface-Mount 182 –40°C to +85°C OPA634U OPA634U Rails

"""""OPA634U/2K5 Tape and Reel

OPA634N 5-Lead SOT23-5 331 –40°C to +85°C B34 OPA634N/250 Tape and Reel

"""""OPA634N/3K Tape and Reel

NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (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 3000 pieces of “OPA635N/3K” will get a single
3000-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.

PACKAGE/ORDERING INFORMATION

1

2

3

6

4

Output

GND

Non-Inverting Input

+V

S

Inverting Input

B34

1

2

3

6

4

Pin Orientation/Package Marking

Top View—OPA634 SOT23-5

5

®

OPA634, OPA635

TYPICAL PERFORMANCE CURVES: VS = +5V

At TA = 25°C, G = +2, RF = 750Ω, and RL = 150Ω to VS/2, unless otherwise noted (see Figure 1).

6
3

0
–3
–6
–9

–12
–15
–18

SMALL-SIGNAL FREQUENCY RESPONSE

Frequency (MHz)

Normalized Gain (dB)

1 10 100 300

VO = 0.2Vp-p

G = +10

G = +2

G = +5

12

9
6
3

0
–3
–6
–9

–12

LARGE-SIGNAL FREQUENCY RESPONSE

Frequency (MHz)

Gain (dB)

1 10 100 300

VO = 0.2Vp-p

VO = 4Vp-p

VO = 2Vp-p

VO = 1Vp-p

SMALL-SIGNAL PULSE RESPONSE

Time (10ns/div)

Input and Output Voltage (50mV/div)

VO = 200mVp-p

V

O

V

IN

LARGE-SIGNAL DISABLE/ENABLE RESPONSE

Time (10ns/div)

Input and Output Voltage (500mV/div)

VO = 2Vp-p

V

O

V

IN

–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85

DISABLE FEEDTHROUGH vs FREQUENCY

Frequency (MHz)

1 10 100 1000

Feedthrough (dB)

OPA635 only

V

DIS

= +5V

LARGE-SIGNAL DISABLE/ENABLE RESPONSE

Time (50ns/div)

Disable Voltage (1V/div)

Output Voltage (250mV/div)

VIN = 0.5V

OPA635 only

V

O

V

DIS

6

®

OPA634, OPA635

TYPICAL PERFORMANCE CURVES: VS = +5V (CONT)

At TA = 25°C, G = +2, RF = 750Ω, and RL = 150Ω to VS/2, unless otherwise noted (see Figure 1).

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

5MHz 2nd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage (Vp-p)

10.1 4

2nd Harmonic Distortion (dBc)

RL = 150Ω

RL = 250Ω

RL = 500Ω

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

5MHz 3rd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage (Vp-p)

10.1 4

3rd Harmonic Distortion (dBc)

RL = 500Ω

RL = 250Ω

RL = 150Ω

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

10MHz 2nd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage (Vp-p)

10.1 4

2nd Harmonic Distortion (dBc)

RL = 150Ω

RL = 250Ω

RL = 500Ω

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

10MHz 3rd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage (Vp-p)

10.1 4

3rd Harmonic Distortion (dBc)

RL = 250Ω

RL = 150Ω

RL = 500Ω

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

20MHz 2nd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage (Vp-p)

10.1 4

2nd Harmonic Distortion (dBc)

RL = 500Ω

RL = 150Ω

RL = 250Ω

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

20MHz 3rd HARMONIC DISTORTION

vs OUTPUT VOLTAGE

Output Voltage (Vp-p)

10.1 4

3rd Harmonic Distortion (dBc)

RL = 500Ω

RL = 150Ω

RL = 250Ω