Texas Instruments OPA333, OPA2333AIDRG4 Datasheet

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FEATURES DESCRIPTION

APPLICATIONS

0.1HzTO10HzNOISE

500nV/div

1s/div

1

2

3

5

4

V+

-IN

OUT

V-

+IN

OPA333

SOT23-5

1

2

3

5

4

V+

OUT

+IN

V-

-IN

OPA333

SC70-5

OPA333

OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

1.8V, microPOWER

CMOS OPERATIONAL AMPLIFIERS

Zerø-Drift Series

• LOW OFFSET VOLTAGE: 10 μ V (max)

The OPA333 series of CMOS operational amplifiers
uses a proprietary auto-calibration technique to

• ZERO DRIFT: 0.05 μ V/ ° C (max)

simultaneously provide very low offset voltage (10 μ V

• 0.01Hz to 10Hz NOISE: 1.1 μ V

PP

max) and near-zero drift over time and temperature.

• QUIESCENT CURRENT: 17 μ A

These miniature, high-precision, low quiescent

• SINGLE-SUPPLY OPERATION current amplifiers offer high-impedance inputs that
have a common-mode range 100mV beyond the rails

• SUPPLY VOLTAGE: 1.8V to 5.5V

and rail-to-rail output that swings within 50mV of the

• RAIL-TO-RAIL INPUT/OUTPUT

rails. Single or dual supplies as low as +1.8V ( ± 0.9V)

• microSIZE PACKAGES: SC70 and SOT23

and up to +5.5V ( ± 2.75V) may be used. They are
optimized for low-voltage, single-supply operation.

The OPA333 family offers excellent CMRR without

• TRANSDUCER APPLICATIONS

the crossover associated with traditional

• TEMPERATURE MEASUREMENTS complementary input stages. This design results in
superior performance for driving analog-to-digital

• ELECTRONIC SCALES

converters (ADCs) without degradation of differential

• MEDICAL INSTRUMENTATION

linearity.

• BATTERY-POWERED INSTRUMENTS

The OPA333 (single version) is available in the

• HANDHELD TEST EQUIPMENT

SC70-5, SOT23-5, and SO-8 packages. The
OPA2333 (dual version) is offered in DFN-8 (3mm ×
3mm), MSOP-8, and SO-8 packages. All versions
are specified for operation from –40 ° C to +125 ° C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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ABSOLUTE MAXIMUM RATINGS

(1)

OPA333
OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

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 to damage because very small parametric changes could cause the device not to meet its published
specifications.

ORDERING INFORMATION

(1)

PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR PACKAGE MARKING

SOT23-5 DBV OAXQ

OPA333 SC70-5 DCK BQY

SO-8 D O333A
SO-8 D O2333A

OPA2333 DFN-8 DRB BQZ

MSOP-8 DGK OBAQ

(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com .

OPA333, OPA2333 UNIT

Supply Voltage +7 V
Signal Input Terminals, Voltage

(2)

–0.3 to (V+) + 0.3 V

Signal Input Terminals, Voltage

(2)

± 10 mA

Output Short-Circuit

(3)

Continuous
Operating Temperature –40 to +150 ° C
Storage Temperature –65 to +150 ° C
Junction Temperature +150 ° C
ESD Ratings:

Human Body Model (HBM) 4000 V
Charged Device Model (CDM) 1000 V
Machine Model (MM) 400 V

(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, and functional operation of the device at these or any other conditions beyond
those specified is not supported.

(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.

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ELECTRICAL CHARACTERISTICS: V

S

= +1.8V to +5.5V

OPA333

OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

Boldface limits apply over the specified temperature range, TA= –40 ° C to +125 ° C.

At TA= +25 ° C, RL= 10k Ω connected to VS/2, V

CM

= VS/2, and V

OUT

= VS/2, unless otherwise noted.

OPA333, OPA2333

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

OFFSET VOLTAGE

Input Offset Voltage V

OS

VS= +5V 2 10 μ V

vs Temperature dV

OS

/dT 0.02 0.05 μ V/ ° C

vs Power Supply PSRR VS= +1.8V to +5.5V 1 5 μ V/V

Long-Term Stability

(1)

See

(1)

Channel Separation, dc 0.1 μ V/V

INPUT BIAS CURRENT

Input Bias Current I

B

± 70 ± 200 pA

over Temperature ± 150 pA

Input Offset Current I

OS

± 140 ± 400 pA

NOISE

Input Voltage Noise, f = 0.01Hz to 1Hz 0.3 μ V

PP

Input Voltage Noise, f = 0.1Hz to 10Hz 1.1 μ V

PP

Input Current Noise, f = 10Hz i

n

100 fA/ √ Hz

INPUT VOLTAGE RANGE

Common-Mode Voltage Range V

CM

(V–) – 0.1 (V+) + 0.1 V

Common-Mode Rejection Ratio CMRR (V–) – 0.1V < VCM< (V+) + 0.1V 106 130 dB
INPUT CAPACITANCE

Differential 2 pF
Common-Mode 4 pF

OPEN-LOOP GAIN

(V–) + 100mV < VO< (V+) – 100mV, RL=

Open-Loop Voltage Gain A

OL

106 130 dB

10k Ω

FREQUENCY RESPONSE

Gain-Bandwidth Product GBW CL= 100pF 350 kHz
Slew Rate SR G = +1 0.16 V/ μ s

OUTPUT

Voltage Output Swing from Rail RL= 10k Ω 30 50 mV

over Temperature RL= 10k Ω 70 mV

Short-Circuit Current I

SC

± 5 mA

Capacitive Load Drive C

L

See Typical Characteristics

Open-Loop Output Impedance f = 350kHz, IO= 0 2 k Ω

POWER SUPPLY

Specified Voltage Range V

S

1.8 5.5 V

Quiescent Current Per Amplifier I

Q

IO= 0 17 25 μ A

over Temperature 28 μ A

Turn-On Time VS= +5V 100 μ s

TEMPERATURE RANGE

Specified Range –40 +125 ° C
Operating Range –40 +150 ° C
Storage Range –65 +150 ° C
Thermal Resistance θ

JA

° C/W
SOT23-5 200 ° C/W
MSOP-8, SO-8 150 ° C/W
DFN-8 50 ° C/W
SC70-5 250 ° C/W

(1) 300-hour life test at +150 ° C demonstrated randomly distributed variation of approximately 1 μ V.

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PIN CONFIGURATIONS

1

2

3

5

4

V+

-IN

OUT

V-

+IN

1

2

3

5

4

V+

OUT

+IN

V-

-IN

1

2

3

4

8

7

6

5

NC

(1)

V+

OUT

NC

(1)

NC

(1)

-IN

+IN

V-

1

2

3

4

8

7

6

5

V+

OUTB

-INB

+INB

OUTA

-INA

+INA

V-

A

B

1

2

3

4

8

7

6

5

V+

OUTB

-INB

+INB

OUTA

-INA

+INA

V-

Exposed

Thermal
DiePad

on

Underside

(2)

OPA333
OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

OPA333 OPA333 OPA333

SOT23-5 SO-8 SC70-5

Top View Top View Top View

OPA2333 OPA2333

SO-8, MSOP-8 DFN-8

Top View Top View

1. NC denotes no internal connection.

2. Connect thermal die pad to V–.

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TYPICAL CHARACTERISTICS

Population

-10

-9

-

8

-

7

-

6

-

5

-

4

-

3

-

2

-

1

0

1

2

3

4

5

6

7

8

9

10

OffsetVoltage( V)m

Population

0

0.0025

0.0050

0.0075

0.0100

0.0125

0.0150

0.0175

0.0200

0.0225

0.0250

0.0275

0.0300

0.0325

0.0350

0.0375

0.0400

0.0425

0.0450

0.0475

0.0500

OffsetVoltageDrift( V/ C)m °

A (dB)

OL

10

120

100

80

60

40

20

0

-20

Phase( )°

250

200

150

100

50

0

-50

-100

100k10k1k100

Frequency(Hz)

1M

Phase

Gain

CMRR(dB)

1

140

120

100

80

60

40

20

0

100k10k1k10010

Frequency(Hz)

1M

PSRR(dB)

1

120

100

80

60

40

20

0

10k 100k1k10010

Frequency(Hz)

1M

+PSRR

-PSRR

OutputSwing(V)

0

3

2

1

0

-1

-2

-3

1

OutputCurrent(mA)

107 8 965432

- °40 C

- °40 C

- °40 C

+25 C°

+25 C°

+25 C°

+125 C°

+125 C°

V = 2.75V±

S

V = 0.9V±

S

OPA333

OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

At TA= +25 ° C, VS= +5V, and CL= 0pF, unless otherwise noted.

OFFSET VOLTAGE PRODUCTION DISTRIBUTION OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION

Figure 1. Figure 2.

OPEN-LOOP GAIN vs FREQUENCY COMMON-MODE REJECTION RATIO vs FREQUENCY

Figure 3. Figure 4.

POWER-SUPPLY REJECTION RATIO vs FREQUENCY OUTPUT VOLTAGE SWING vs OUTPUT CURRENT

Figure 5. Figure 6.

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I

(pA)

B

0

100

80

60

40

20

0

-20

-40

-60

-80

-100

1

Common-ModeVoltage(V)

5432

-I

B

+I

B

I

(pA)

B

-50

200

150

100

50

0

-50

-100

-150

-200

-25

Temperature( C)°

1251007550250

V =5.5V

S

V =1.8V

S

-I

B

-I

B

+I

B

+I

B

OutputVoltage(1V/div)

Time(50 s/div)m

G=1
R =10kW

L

I ( A)m

Q

-50

25

20

15

10

5

0

-25

Temperature( C)°

1251007550250

V =1.8V

S

V =5.5V

S

OutputVoltage(50mV/div)

Time(5 s/div)m

G=+1
R =10kW

L

2V/div

0

1V/div

0

Time(50 s/div)m

Input

Output

10kW

1kW

OPA333

+2.5V

-2.5V

OPA333
OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

TYPICAL CHARACTERISTICS (continued)

At TA= +25 ° C, VS= +5V, and CL= 0pF, unless otherwise noted.

INPUT BIAS CURRENT vs COMMON-MODE VOLTAGE INPUT BIAS CURRENT vs TEMPERATURE

Figure 7. Figure 8.

QUIESCENT CURRENT vs TEMPERATURE LARGE-SCALE STEP RESPONSE

Figure 9. Figure 10.

SMALL-SCALE STEP RESPONSE POSITIVE OVER-VOLTAGE RECOVERY

Figure 11. Figure 12.

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2V/div

0

1V/div

0

Time(50 s/div)m

Input

Output

10kW

1kW

OPA333

+2.5V

-2.5V

SettlingTime( s)

m

1

600

500

400

300

200

100

0

10

Gain(dB)

100

0.001%

0.01%

4VStep

500nV/div

1s/div

Overshoot(%)

10

40

35

30

25

20

15

10

5

0

100

LoadCapacitance(pF)

1000

VoltageNoise(nV/ )ÖHz

1

1000

100

10

CurrentNoise(fA/

)ÖHz

1000

100

10

1k10010

Frequency(Hz)

10k

CurrentNoise

VoltageNoise

Continueswithno1/f(flicker)noise.

OPA333

OPA2333

SBOS351C – MARCH 2006 – REVISED MAY 2007

TYPICAL CHARACTERISTICS (continued)

At TA= +25 ° C, VS= +5V, and CL= 0pF, unless otherwise noted.

NEGATIVE OVER-VOLTAGE RECOVERY SETTLING TIME vs CLOSED-LOOP GAIN

Figure 13. Figure 14.

SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE 0.1Hz TO 10Hz NOISE

Figure 15. Figure 16.

CURRENT AND VOLTAGE NOISE SPECTRAL DENSITY vs

FREQUENCY

Figure 17.

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