Burr Brown OPA651U-2K5, OPA651U Datasheet

DESCRIPTION

The OPA651 is a low power, wideband voltage feed­back operational amplifier. It features a bandwidth at
G = +2 of 470MHz as well as a 12-bit settling time of
only 16ns. The wide bandwidth and true differential
input stage make it suitable for use in a variety of
applications. Its low distortion gives exceptional per­formance for telecommunications, medical imaging
and video applications.

The OPA651 is compensated for stability in gains of
two or more, differentiating it from the unity gain
stable OPA650. Its unusual combination of speed,
accuracy and low power make it an outstanding choice
for many portable, multi-channel and other high speed
applications, where power is at a premium.

Wideband, Low Power Voltage Feedback

OPERATIONAL AMPLIFIER

© 1994 Burr-Brown Corporation PDS-1265E Printed in U.S.A. March, 1998

OPA651

®

FEATURES

● STABLE IN GAINS: ≥ 2V/V

● LOW POWER: 50mW

● BANDWIDTH: 470MHz at G = 2

● FAST SETTLING TIME: 16ns to 0.01%

● LOW HARMONICS: –78dB at 5MHz

● LOW INPUT BIAS CURRENT: 4

µA

● DIFFERENTIAL GAIN/PHASE ERROR:

0.01%/0.025

°

● LOW VOLTAGE NOISE: 4.6nV/√Hz

APPLICATIONS

● HIGH RESOLUTION VIDEO

● MONITOR PREAMPLIFIER

● CCD IMAGING AMPLIFIER

● ULTRASOUND SIGNAL PROCESSING

● ADC/DAC GAIN AMPLIFIER

● BASEBAND SIGNAL PROCESSING

Current

Mirror

Output

Stage

C

C

Inverting

Input

Non-Inverting

Input

+V

S

Output

–V

S

1.5pF

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OPA651

2OPA651

®

SPECIFICATIONS

At TA = +25°C, VS = ±5V, RL = 100Ω, RFB = 402Ω, G = +2, unless otherwise noted.

OPA651U, N OPA651UB, NB

PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
FREQUENCY RESPONSE

Closed-Loop Bandwidth

(2)

G = +2 470 *

(1)

MHz

G = +5 70 * MHz

G = +10 34 * MHz
Gain Bandwidth Product 340 * MHz
Slew Rate G = +2, V

O

= 2V step 300 * V/µs

Over Specified Temperature 275 * V/µs
Rise Time 0.2V Step 0.8 * ns
Fall Time 0.2V Step 0.8 * ns
Settling Time 0.01% G = +2, V

O

= 2V step 16.2 * ns

0.1% G = +2, V

O

= 2V step 11.5 * ns

1% G = +2, V

O

= 2V step 7.2 * ns

Spurious Free Dynamic Range G = +2, f = 5.0 MHz, V

O

= 2Vp-p,

R

L

= 100Ω 67 * dBc

R

L

= 400Ω 78 * dBc

Differential Gain G = +2, NTSC, V

O

= 1.4Vp, RL = 150Ω 0.01 * %

Differential Phase G = +2, NTSC, V

O

= 1.4Vp, RL = 150Ω 0.025 * Degrees

Bandwidth For 0.1dB Flatness G = +2 43 * MHz

INPUT OFFSET VOLTAGE

Input Offset Voltage ±1 ±5.0 * ±2.0 mV

Average Drift ±3*µV/°C
Power Supply Rejection (+V

S

)V

S

= ±4.5V to ±5.5V 65 85 70 * dB

(–V

S

)526055*dB

INPUT BIAS CURRENT

Input Bias Current V

CM

= 0V 4 20 * 10 µA

Over Temperature 630 *20 µA
Input Offset Current V

CM

= 0V 0.4 1.5 * * µA

Over Temperature 0.9 3.0 * * µA

INPUT NOISE

Input Voltage Noise

Noise Density, f = 100Hz 13 * nV/√Hz

f = 10kHz 4.6 * nV/√Hz
f = 1MHz 4.6 * nV/√Hz

Voltage Noise, BW = 10Hz to 100MHz 46 * µVrms
Input Bias Current Noise

Current Noise Density, f = 0.1Hz to 20kHz 1.1 * pA/√Hz
Noise Figure (NF) R

S

= 10kΩ 3.2 * dB

R

S

= 50Ω 14 * dB

INPUT VOLTAGE RANGE

Common-Mode Input Range ±3.5 * V

Over Specified Temperature ±3.0 * V
Common-Mode Rejection V

CM

= ±0.5V 75 90 80 * dB

INPUT IMPEDANCE

Differential 60 || 1 * kΩ || pF
Common-Mode 2.6 || 1 * MΩ || pF

OPEN-LOOP GAIN

Open-Loop Voltage Gain V

O

= ±2V, RL = 100Ω 42 50 45 * dB

Over Specified Temperature V

O

= ±2V, RL = 100Ω 40 42 dB

OUTPUT

Voltage Output

Over Specified Temperature No Load ±2.2 ±3.0 ±2.4 * V

R

L

= 250Ω±2.2 ±2.5 ±2.4 * V

R

L

= 100Ω±2.0 ±2.3 ±2.1 * V

Current Output, Sourcing 75 110 * * mA

Over Specified Temperature 65 * mA

Current Output, Sinking 65 85 * * mA

Over Specified Temperature 35 * mA
Short Circuit Current 150 * mA
Output Resistance 0.1MHz, G = +2 0.05 * Ω

POWER SUPPLY

Specified Operating Voltage ±5*V
Operating Voltage Range ±4.5 ±5.5 * * V
Quiescent Current ±5.1 ±7.75 * ±6.5 mA

Over Specified Temperature ±8.75 ±7.5 mA

TEMPERATURE RANGE

Specification: U, N, UB, NB –40 +85 * * °C
Thermal Resistance,

θ

JA

U SO-8 125 * °C/W

N SOT23-5 150 * °C/W

NOTES: (1) An asterisk (*) specifies the same value as the grade to the left. (2) Frequency response can be strongly influenced by PC board parasitics. The OPA651
is nominally compensated assuming 2pF parasitic load. The demonstration boards show low parasitic layouts for the different package styles.

3 OPA651

®

1

2

3

54+V

S

–Input

Output

–V

S

+Input

1

2
3
4

8

7
6
5

NC

+V

S

Output
NC

NC

–Input
+Input

–V

S

PIN CONFIGURATION

Top View SO-8

Supply ...............................................................................................±5.5V

Internal Power Dissipation

(1)

: .............................. See Thermal Conditions

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

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

S

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

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

(soldering, SO-8 3s) ...................................................................... +260°C

Junction Temperature (T

J

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

ABSOLUTE MAXIMUM RATINGS

SOT23-5

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.

PACKAGE
DRAWING TEMPERATURE PACKAGE ORDERING

PRODUCT PACKAGE NUMBER

(1)

RANGE MARKING

(2)

NUMBER

(3)

OPA651U SO-8 Surface Mount 182 –40°C to +85°C OPA651U OPA651U
OPA651UB SO-8 Surface Mount 182 –40°C to +85°C OPA651UB OPA651UB
OPA651N 5-pin SOT23-5 331 –40°C to +85°C A51 OPA651N-250

OPA651N-3k

OPA651NB 5-pin SOT23-5 331 –40°C to +85°C A51B OPA651NB-250

OPA651NB-3k

NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) The “B” grade of the SO-8 package
will be marked with a “B” by pin 8. The “B” grade of the SOT23-5 will be marked with a “B” near pins 3 and 4. (3) The SOT23-5 is only available on a 7" tape and reel
(e.g. ordering 250 pieces of “OPA651N-250” will get a single 250 piece tape and reel. Ordering 3000 pieces of “OPA651N-3k” will get a single 3000 piece tape and reel).
Please refer to Appendix B of Burr-Brown IC Data Book for detailed Tape and Reel Mechanical information.

PACKAGE/ORDERING INFORMATION

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.

4OPA651

®

TYPICAL PERFORMANCE CURVES

At TA = +25°C, VS = ±5V, RL = 100Ω, RFB = 402Ω, and G = +2, unless otherwise noted.

OUTPUT CURRENT vs TEMPERATURE

110

100

90

80

–50 –25 0 25 50 75 100

Output Current (±mA)

Temperature (°C)

I

O

+

I

O

–

INPUT VOLTAGE NOISE DENSITY vs FREQUENCY

100 1k 10k 100k 1M

Input Voltage Noise (nV/√Hz)

Frequency (Hz)

100

10

1

SUPPLY CURRENT vs TEMPERATURE

8
7
6
5
4
3
2
1
0

–75 –50 –25 0 25 50 75 100

Supply Current (±mA)

Ambient Temperature (°C)

INPUT BIAS CURRENT AND OFFSET VOLTAGE

vs TEMPERATURE

7

6

5

4

2

1

0

–1

–50 –25 0 25 50 75 100

Input Bias Current (mA)

Offset Voltage (mV)

Temperature (°C)

V

OS

I

B

COMMON-MODE REJECTION RATIO

vs COMMON-MODE INPUT VOLTAGE

100

90

80

70

60

50

40

30

–4 –2–3 –101234

Common-Mode Rejection (dB)

Common-Mode Voltage (V)

AOL, PSR+, PSR–, AND CMRR vs TEMPERATURE

100

95
90
85
80
75
70
65
60
55
50
45
40

–75 –50 –25 0 25 50 75 100

A

OL

, PSR+, PSR–, and CMRR (dB)

Ambient Temperature (°C)

A

OL

PSR+

PSR–

CMRR