BURR-BROWN OPA350, OPA2350, OPA4350 User Manual

OPA2350

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

OPA4350

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

High-Speed, Single-Supply, Rail-to-Rail

OPERATIONAL AMPLIFIERS

MicroAmplifiertSeries

OPA350

FEATURES

D RAIL-TO-RAIL INPUT
D RAIL-TO-RAIL OUTPUT (within 10mV)
D WIDE BANDWIDTH: 38MHz
D HIGH SLEW RATE: 22V/µs
D LOW NOISE: 5nV/√Hz
D LOW THD+NOISE: 0.0006%
D UNITY-GAIN STABLE
D MicroSIZE PACKAGES
D SINGLE, DUAL, AND QUAD

APPLICATIONS

D CELL PHONE PA CONTROL LOOPS
D DRIVING A/D CONVERTERS
D VIDEO PROCESSING
D DATA ACQUISITION
D PROCESS CONTROL
D AUDIO PROCESSING
D COMMUNICATIONS
D ACTIVE FILTERS
D TEST EQUIPMENT

DESCRIPTION

The OPA350 series rail-to-rail CMOS operational
amplifiers are optimized for low voltage, single-supply
operation. Rail-to-rail input/output, low noise (5nV/√Hz
and high speed operation (38MHz, 22V/µs) make them
ideal for driving sampling Analog-to-Digital (A/D)
converters. They are also well suited for cell phone PA
control loops and video processing (75Ω drive capability)
as well as audio and general purpose applications. Single,
dual, and quad versions have identical specifications for
maximum design flexibility.

The OPA350 series operates on a single supply as low as

2.5V with an input common-mode voltage range that
extends 300mV below ground and 300mV above the
positive supply. Output voltage swing is to within 10mV of
the supply rails with a 10kΩ load. Dual and quad designs
feature completely independent circuitry for lowest
crosstalk and freedom from interaction.

The single (OPA350) and dual (OPA2350) come in the
miniature MSOP-8 surface mount, SO-8 surface mount,
and DIP-8 packages. The quad (OPA4350) packages are
the space-saving SSOP-16 surface mount and SO-14
surface mount. All a r e s p e c i f i e d f r o m − 4 0 °C to +85°C and
operate from −55°C to +150°C.

),

OPA350

1

NC

2

−In
3

+In

−

4

V

DIP−8, SO−8, MSOP−8

OPA2350

1

OutA

A

2

−In A
3

+In A

−

4

DIP−8, SO−8, MSOP−8

semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

         
          
 !     !   

B

NC

8

V+

7

Output

6

NC

5

8

V+

7

Out B

6

−In B

5

+In B

Out A

−In A

+In A

V+

+In B

−In B

Out B

1
2
3
4
5
6
7

OPA4350

AD

BC

SO−14

SPICE model available at www.ti.com

Out A

−In A

+In A

+V

+In B

−In B

Out B

NC

Copyright  2000−2005, Texas Instruments Incorporated

www.ti.com

14

Out D

13

−In D

12

+In D

11

V

−

10

+In C

9

−In C

8

Out C

OPA4350

1
2

AD

3
4
5

BC

6
7
8

SSOP−16

16

Out D

15

−In D

14

+In D

−

13

V

12

+In C

11

−In C

10

Out C

9

NC

"#$

OPA350EA

MSOP-8

DGK

−40°C to +85°C

C50

OPA350UA

SO-8

D

−40°C to +85°C

OPA350UA

OPA2350EA

MSOP-8

DGK

−40°C to +85°C

D50

OPA2350UA

SO-8

D

−40°C to +85°C

OPA2350UA

OPA4350EA

SSOP-16

DBQ

−40°C to +85°C

OPA4350EA

OPA4350UA

SO-14

D

−40°C to +85°C

OPA4350UA

%"#$
&"#$

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

www.ti.com

ABSOLUTE MAXIMUM RATINGS

Supply Voltage 7.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Input Terminals

Open Short-Circuit Current

Operating Temperature Range −55°C to +150°C. . . . . . . . . . . . . . .

Storage Temperature Range −55°C to +150°C. . . . . . . . . . . . . . . . .

Junction Temperature +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

(1)

Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only , an d
functional operation of the device at these or any other conditions
beyond those specified is not implied.

(2)

Input terminals are diode-clamped to the power-supply rails.
Input signals that can swing more than 0.3V beyond the supply
rails should be current limited to 10mA or less.

(3)

Short-circuit to ground, one amplifier per package.

(2)

,Voltage (V−) − 0.3V to (V+) + 0.3V. . . . .

Current 10mA. . . . . . . . . . . . . . . . . . . . . .

(3)

PACKAGE/ORDERING INFORMATION

PRODUCT PACKAGE-LEAD

SINGLE

OPA350PA DIP-8 P −40°C to +85°C OPA350PA OPA350PA Rails

DUAL

OPA2350PA DIP-8 P −40°C to +85°C OPA2350PA OPA2350PA Rails

QUAD

(1)

For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.

(1)

Continuous. . . . . . . . . . . . . . . . . . . .

PACKAGE

DESIGNATOR

(1)

TEMPERATURE

ELECTROSTATIC DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe

proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to

complete device failure. Precision integrated circuits may be more
susceptible t o damage because very small parametric changes could
cause the device not to meet its published specifications.

SPECIFIED

RANGE

PACKAGE

MARKING

ORDERING

NUMBER

OPA350EA/250 Tape and Reel, 250
OPA350EA/2K5 Tape and Reel, 2500

OPA350UA Rails

OPA350UA/2K5 Tape and Reel, 2500

OPA2350EA/250 Tape and Reel, 250

OPA2350EA/2K5 Tape and Reel, 2500

OPA2350UA Rails

OPA2350UA/2K5 Tape and Reel, 2500

OPA4350EA/250 Tape and Reel, 250
OPA4350EA/2K5 Tape and Reel, 2500

OPA4350UA Rails

OPA4350UA/2K5 Tape and Reel, 2500

MEDIA, QUANTITY

TRANSPORT

2

"#$

%"#$

www.ti.com

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

ELECTRICAL CHARACTERISTICS: VS = 2.7V to 5.5V

Boldface limits apply over the temperature range, TA = −40°C to +85°C. VS = 5V.

All specifications at TA = +25°C, RL = 1kΩ connected to VS/2 and V

PARAMETER TEST CONDITIONS MIN TYP

OFFSET VOLTAGE

Input Offset Voltage V

TA = −40°C to +85°C ±1 mV
vs Temperature TA = −40°C to +85°C ±4 µV/°C
vs Power-Supply Rejection Ratio PSRR VS = 2.7V to 5.5V , VCM = 0V 40 150 µV/V
TA = −40°C to +85°C VS = 2.7V to 5.5V , VCM = 0V 175 µV/V

Channel Separation (dual, quad) dc 0.15 µV/V

INPUT BIAS CURRENT

Input Bias Current I

vs Temperature See Typical Characteristics

Input Offset Current I

NOISE

Input Voltage Noise, f = 100Hz to 400kHz 4 µVrms
Input Voltage Noise Density, f = 10kHz e
Input Current Noise Density, f = 100kHz 5 nV/√Hz
Current Noise Density, f = 10kHz i

INPUT VOLTAGE RANGE

Common-Mode Voltage Range V
Common-Mode Rejection Ratio CMRR VS = 2.7V , −0.1V < VCM < 2.8V 66 84 dB

TA = −40°C to +85°C VS = 5.5 V, −0.1V < VCM < 5.6V 74 dB

INPUT IMPEDANCE

Differential 1013 || 2.5 Ω || pF
Common-Mode 1013 || 6.5 Ω || pF

OPEN-LOOP GAIN

Open-Loop Voltage Gain A

TA = −40°C to +85°C RL = 10kW, 50mV < VO < (V+) −50mV 100 dB

TA = −40°C to +85°C RL = 1kW, 200mV < VO < (V+) −200mV 100 dB

FREQUENCY RESPONSE CL = 100pF

Gain-Bandwidth Product GBW G = 1 38 MHz
Slew Rate SR G = 1 22 V/µs
Settling Time: 0.1% G = ±1, 2V Step 0.22 µs

0.01% G = ±1, 2V Step 0.5 µs
Overload Recovery Time VIN • G = V
Total Harmonic Distortion + Noise THD+N RL = 600Ω, VO = 2.5V
Differential Gain Error G = 2, RL = 600Ω, VO = 1.4V
Differential Phase Error G = 2, RL = 600Ω, VO = 1.4V
(1)

VS = +5V .

(2)

V

= 0.25V to 2.75V .

OUT

(3)

NTSC signal generator used. See Figure 6 for test circuit.

(4)

Output voltage swings are measured between the output and power supply rails.

(5)

See typical characteristic curve, Output Voltage Swing vs Output Current.

OS

B

OS

n

n

CM

VS = 5.5V , −0.1V < VCM < 5.6V 74 90 dB

OLRL

= 10kΩ, 50mV < VO < (V+) −50mV 100 122 dB

RL = 1kΩ, 200mV < VO < (V+) −200mV 100 120 dB

= VS/2, unless otherwise noted.

OUT

OPA350, OPA2350, OPA4350

(1)

VS = 5V ±150 ±500 µV

±0.5 ±10 pA

±0.5 ±10 pA

7 nV/√Hz

4 fA/√Hz

TA = −40°C to +85°C −0.1 (V+) + 0 .1 V

S

(2)

, G = 1, f = 1kHz 0.0006 %

PP

(3)
(3)

0.1 µs

0.17 %

0.17 deg

&"#$

MAX UNIT

3

"#$
%"#$
&"#$

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

ELECTRICAL CHARACTERISTICS: VS = 2.7V to 5.5V (continued)

Boldface limits apply over the temperature range, TA = −40°C to +85°C. VS = 5V.

All specifications at TA = +25°C, RL = 1kΩ connected to VS/2 and V

PARAMETER UNITMAXTYP

OUTPUT

Voltage Output Swing from Rail

TA = −40°C to +85°C RL = 10kW, AOL  100dB 50 mV

TA = −40°C to +85°C RL = 1kW, AOL  100dB 200 mV

Output Current I
Short-Circuit Current I
Capacitive Load Drive C

POWER SUPPLY

Operating Voltage Range V
Minimum Operating Voltage 2.5 V
Quiescent Current (per amplifier) I

TA = −40°C to +85°C IO = 0 8.5 mA

TEMPERATURE RANGE

Specified Range −40 +85 °C
Operating Range −55 +150 °C
Storage Range −55 +150 °C
Thermal Resistance q

MSOP-8 Surface Mount 150 °C/W
SO-8 Surface Mount 150 °C/W
DIP-8 100 °C/W
SO-14 Surface Mount 100 °C/W
SSOP-16 Surface Mount 100 °C/W

(1)

VS = +5V .

(2)

V

= 0.25V to 2.75V .

OUT

(3)

NTSC signal generator used. See Figure 6 for test circuit.

(4)

Output voltage swings are measured between the output and power supply rails.

(5)

See typical characteristic curve, Output Voltage Swing vs Output Current.

(4)

V

OUT

OUT

SC

LOAD

JA

RL = 10kΩ, AOL ≥ 100dB 10 50 mV

RL = 1kΩ, AOL ≥ 100dB 25 200 mV

S

Q

= VS/2, unless otherwise noted.

OUT

OPA350, OPA2350, OPA4350

MINTEST CONDITIONS

See Typical Characteristics

TA = −40°C to +85°C 2.7 5.5 V

IO = 0 5.2 7.5 mA

(1)

(5)

±40

±80 mA

www.ti.com

mA

4

www.ti.com

THD+N (%)
Harmonic Distortion (%)

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

TYPICAL CHARACTERISTICS

All specifications at TA = +25°C, VS = +5V , and RL = 1kΩ connected to VS/2, unless otherwise noted.

POWER SUPPLY ANDCOMMON−MODE

160
140
120
100

80
60

Voltage Gain (dB)

40
20

0

OPEN-LOOP GAIN/PHASE vs FREQUENCY

0.1 1

φ

G

10 100 1k 10k 100k 1M 10M 100M

Frequency (Hz)

0

45

−

)

_

90

−

Phase (

135

−

180

−

100

90
80
70
60
50
40
30

PSRR,CMRR (dB)

20
10

0

10 100 1k 10k 100k 1M 10M

REJECTION RATIOvs FREQUENCY

CMRR

(V

S

=−0.1V to 5.1V)

V

CM

Frequency(Hz)

"#$
%"#$
&"#$

PSRR

=+5V

INPUT VOLTAGE AND CURRENT NOISE

100k

10k

1k

100

VoltageNoise (nV√Hz)

10

1

10 100 1k 10k 100k 1M 10M

1

0.1

0.01

0.001

0.0001

SPECTRAL DENSITY vs FREQUENCY

Current Noise

Voltage Noise

Frequency (Hz)

TOTAL HARMONIC DISTORTION + NOISE

G = 100, 3VPP(VO=1Vto4V)

G=10,3VPP(VO=1Vto4V)

G = 1, 3VPP(VO=1Vto4V)
Input goes through transition region

G = 1, 2.5VPP(VO= 0.25Vto 2.75V)
Input does NOT go through transition region

10 100 1k 10k 100k

vs FREQUENCY

Frequency (Hz)

RL= 600Ω

10k

1k

100

10

1

0.1

140
130
120
110
100

90

Current Noise (fA√Hz)

80

Channel Separation (dB)

70
60

(−40dBc)

0.1

(−60dBc)

0.01

(−80dBc)

0.001

(−100dBc)

0.0001

(−120dBc)

CHANNEL SEPARATION vs FREQUENCY

Dual and quad devices.

10010 1k 1M100k10k 10M

Frequency (Hz)

HARMON ICDISTORTION + NOISE vs FREQUEN CY

1

G=1
VO=2.5V

PP

RL= 600Ω

3rd−Harmonic

1k 10k 100k 1M

2nd− Harmonic

Frequency (Hz)

5

"#$

0

%"#$
&"#$

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

TYPICAL CHARACTERISTICS (continued)

All specifications at TA = +25°C, VS = +5V , and RL = 1kΩ connected to VS/2, unless otherwise noted.

www.ti.com

DIFFERENTIAL GAIN/PHASE vs RESISTIVE LOAD

0.5

0.4

)

_

0.3

0.2

Differential Gain (%)

Differential Phase (

0.1

0

0 100 200 300 500400 600 800700 900 100

COMMON−MODEAND POWER−SUPPLY REJECTION RATIO

100

90

80

CMRR (dB)

70

60

−75 −50 −25 0 2 5 50 75 100 125

Phase

Gain

Resistive Load (Ω)

vs TEMP ERATUR E

CMRR, VS=5.5V

(VCM=−0.1V to +5.6V)

CMRR, VS=2.7V

(V

CM

PSRR

Temperature (_C)

G=2

=1.4V

V

O

NTSC Signal Generator
SeeFigure6fortestcircuit.

= −0.1Vto +2.8V)

110

100

90

80

70

130

125

120

115

Open−Loop Gain (dB)

110

−

75−50−250255075100125

40
35
30

s)

µ

25
20

PSRR(dB)

15

Slew Rate (V/

10

5
0

−75−50−

OPEN−LOOP GAIN vs TEMPERATURE

Ω

RL=1k

Ω

RL=10k

Ω

RL=600

Temperature (_C)

SLEW RATE vs TEMPERATURE

Negative Slew Rate

Positive Slew Rate

250 255075100125

Temperature (_C)

Quiescent Current (mA)

6

QUIESCENT CURRENT AND

SHORT−CIRCUIT CURRENT vs TEMPERATURE

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

−75−50−

25 0 25 50 75 100 125

Temperature (_C)

+I

I

−

SC

I

Q

QUIESCENT CURRENT vs SUPPLY VOLTAGE

SC

100
90
80
70
60
50

Short−C ircuitCurrent (mA)

40
30

6.0
Per Amplifier

5.5

5.0

4.5

4.0

QuiescentCurrent (mA)

3.5

3.0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Supply Voltage (V)

www.ti.com

M

0

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

TYPICAL CHARACTERISTICS (continued)

All specifications at TA = +25°C, VS = +5V , and RL = 1kΩ connected to VS/2, unless otherwise noted.

"#$
%"#$
&"#$

)

Ω

Output Impedance (

100

Input Bias Current (pA)

0.001

1k

10

1

0.1

100

10

0.1

0.01

INPUT BIAS CURRENT vs TEMPERATURE

−75−50−

CLOSED−LOOP OUTPUT IMPEDANCE vs FREQUENCY

1

25 0 25 50 75 100 125

Temperature (_C)

G = 100

G=10

G=1

INPUT BIAS CURRENT

1.5

1.0

0.5

0.0

Input Bias Current (pA)

−

0.5

−0.5 0.0 0.5 1.0 2.01.5 2.5 3.0 3.5 4.0 5.04.5 5.5

6

5

)

PP

4

3

2

Output Voltage (V

1

vs INPUT COMMON−MODE VOLTAGE

Common−Mode Voltage (V)

MAXIMUM OUTPUT VOLTAGE vs FREQUENCY

VS=5.5V

VS=2.7V

Maximum output
voltage without
slewrate−induced
distortion.

0.0001
1 10 100 1k 10k 100k 1M 10M 100

Frequency (Hz)

OUTPUT VOLTAGE SWING vs OUTPUT CURRENT

V+

(V+)−1

(V+)−2

(V−)+2

Output Voltage (V)

(V−)+1

(V−)

+125_C

Depending on circuit configuration
(including closed−loop gain) performance
may be degraded in shaded region.

+125_C

0

±

10

Output Current (mA)

−55_

+25_C

±

20

0

100k

Frequency (Hz)

OPEN−LOOPGAIN vs OUTPUT VOLTAGE SWING

140

I

=250µA

OUT

130

+25_C

C

−55_

C

±

30

±

4

120
110
100

90
80

Open−Loop Gain (dB)

70
60

0204060 10080 120 160140 180 200

Output Voltage Swing from Rails (mV)

I

I

OUT

=2.5mA

OUT

=4.2mA

100M1M 10M

7

"#$
%"#$
&"#$

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

TYPICAL CHARACTERISTICS (continued)

All specifications at TA = +25°C, VS = +5V , and RL = 1kΩ connected to VS/2, unless otherwise noted.

www.ti.com

OFFSET VOLTAGE

18
16
14
12
10

8
6
4

Perce n tof Amplifiers (%)

2
0

−500

SMALL−SIGNAL OVERSHOOT vs LOAD CAPACITANCE

80
70
60
50
40
30

Overshoot (%)

20
10

0

10

PRODUC TIONDISTRIBUTION

450−400−350

−

250−200−150−100

−300

−

Offset Voltage (µV)

G=1

G=−1

Load Capacitance (pF)

0

50

−

G=±10

50

Typ ic a ldistributionof

packaged units.

100

150

200

250

300

350

400

450

500

1M100 1k 10k 100k

OFFSET VOLTAGE DRIFT

20
18
16
14
12
10

8
6

Percent of Amplifiers (%)

4
2
0

0123456789101112131415

10

s)

µ

1

Settling Time (

0.1

−

1

PRODUCTION DISTRIBUTION

Typicalproduction
distributi on of
packagedunits.

Offset VoltageDrift (µV/_ C)

SETTLING TIME vs CLOSED−LOOP GAIN

0.01%

0.1%

−

10

Closed−Loop Gain (V/V)

−

100

SMALL−SIGNALSTEP RESPONSE

50mV/div

= 100pF

C

L

100ns/div

1V/div

LARGE−SIGNALSTEP RESPONSE

= 100pF

C

L

200ns/div

8