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OPA

348

OPA

348

OPA

234

OPA

434

OPA348

OPA2348

OPA4348

SBOS213C – NOVEMBER 2001 – REVISED MAY 2002

1MHz, 45

A, CMOS, Rail-to-Rail

OPERATIONAL AMPLIFIERS

FEATURES

LOW I

: 45

A typical

LOW COST

RAIL-TO-RAIL INPUT AND OUTPUT

SINGLE SUPPLY: +2.1V to +5.5V

INPUT BIAS CURRENT: 0.5pA

Micro

SIZE PACKAGES: SC70-5, SOT23-8 and

TSSOP-14

HIGH SPEED:POWER WITH BANDWIDTH: 1MHz

DESCRIPTION

The OPA348 series amplifiers are single supply, low-power,

CMOS op amps in micro packaging. Featuring an extended

bandwidth of 1MHz, and a supply current of 45µA, the

OPA348 series is useful for low-power applications on single

supplies of 2.1V to 5.5V.

Low supply current of 45µA, and an input bias current of

0.5pA, make the OPA348 series an optimal candidate for

low-power, high-impedance applications such as smoke de-

tectors and other sensors.

The OPA348 is available in the miniature SC70-5,

SOT23-5 and SO-8 packages. The OPA2348 is available in

SOT23-8 and SO-8 packages, and the OPA4348 is offered

in space-saving TSSOP-14 and SO-14 packages. The ex-

tended temperature range of –40°C to +125°C over all supply

voltages offers additional design flexibility.

PACKAGES

SOT23-5

SOT23-8

SO-8

OPA348

OPA2348

OPA4348

APPLICATIONS

PORTABLE EQUIPMENT

BATTERY-POWERED EQUIPMENT

SMOKE ALARMS

CO DETECTORS

MEDICAL INSTRUMENTATION

OPA348

TSSOP-14

Out

V–

+In

SOT23-5

OPA2348

V+

+In 1

V– 2

–In 3

SC70-5

5 V+

4 Out

SO-14

SC70-5

–In

OPA4348

Out A

+In A

–In B

TSSOP-14, SO-14

–In C

Out C

+In D

V–

+In C

Out D

–In D

OPA348

V+

Out B

–In B

+In B

–In

+In

V–

SO-8

–In A

Out A

–In A

+In A

V–

SOT23-8, SO-8

V+

+In B

Out

Out B

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.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

ABSOLUTE MAXIMUM RATINGS

(1)

Supply Voltage, V– to V+ ................................................................... 7.5V

Signal Input Terminals, Voltage

(2)

.................. (V–) – 0.5V to (V+) + 0.5V

Current

(2)

.................................................... 10mA

(3)

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

Output Short-Circuit

Operating Temperature .................................................. –65°C to +150°C

Storage Temperature ..................................................... –65°C to +150°C

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

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

NOTES: (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. Functional opera-

tion of the device at these conditions, or beyond the specified operating

conditions, is not implied. (2) Input terminals are diode-clamped to the

power-supply rails. Input signals that can swing more than 0.5V beyond the

supply rails should be current-limited to 10mA or less. (3) Short-circuit to

ground, one amplifier per package.

ELECTROSTATIC

DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Texas Instru-

ments 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 degrada-

tion 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.

PACKAGE/ORDERING INFORMATION

PACKAGE

DESIGNATOR

(1)

DBV

SPECIFIED

TEMPERATURE

RANGE

–40°C to +125°C

PACKAGE

MARKING

A48

ORDERING

NUMBER

(2)

OPA348AIDBVT

OPA348AIDBVR

OPA348AID

OPA348AIDR

OPA348AIDCKT

OPA348AIDCKR

OPA2348AIDCNT

OPA2348AIDCNR

OPA2348AID

OPA2348AIDR

OPA4348AID

OPA4348AIDR

OPA4348AIPWT

OPA4348AIPWR

TRANSPORT

MEDIA, QUANTITY

Tape and Reel, 250

Tape and Reel, 3000

Tubes, 100

Tape and Reel, 2500

Tape and Reel, 250

Tape and Reel, 3000

Tape and Reel, 250

Tape and Reel, 3000

Tubes, 100

Tape and Reel, 2500

Tubes, 58

Tape and Reel, 2500

Tubes, 250

Tape and Reel, 2500

PRODUCT

Single

OPA348AI

PACKAGE-LEAD

SOT23-5

OPA348AI

SO-8

–40°C to +125°C

348A

OPA348AI

SC70-5

DCK

–40°C to 125°C

S48

Dual

OPA2348AI

SOT23-8

DCN

–40°C to +125°C

B48

OPA2348AI

SO-8

–40°C to +125°C

2348A

Quad

OPA4348AI

SO-14

–40°C to +125°C

OPA4348

OPA4348AI

TSSOP-14

–40°C to +125°C

4348A

NOTES: (1) For the most current specifications and package information, refer to our web site at www.ti.com. (2) Models labeled with “T” indicate smaller quantity

tape and reel, “R” indicates large quantity tape and reel and “D” indicates tubes of specified quantity.

OPA348, 2348, 4348

www.ti.com

SBOS213C

ELECTRICAL CHARACTERISTICS: V

= 2.5V to 5.5V

Boldface

limits apply over the specified temperature range,

= –40

C to +125

At T

= +25°C, R

= 100kΩ connected to V

/ 2 and V

OUT

= V

/ 2, unless otherwise noted.

OPA348

OPA2348

OPA4348

PARAMETER

OFFSET VOLTAGE

Input Offset Voltage

Over Temperature

Drift

vs Power Supply

Over Temperature

Channel Separation, dc

f = 1kHz

INPUT VOLTAGE RANGE

Common-Mode Voltage Range

Common-Mode Rejection Ratio

over Temperature

INPUT BIAS CURRENT

Input Bias Current

Input Offset Current

INPUT IMPEDANCE

Differential

Common-Mode

NOISE

Input Voltage Noise, f = 0.1Hz to 10Hz

Input Voltage Noise Density, f = 1kHz

Input Current Noise Density, f = 1kHz

OPEN-LOOP GAIN

Open-Loop Voltage Gain

over Temperature

OUTPUT

Voltage Output Swing from Rail

over Temperature

Short-Circuit Current

Capacitive Load Drive

FREQUENCY RESPONSE

Gain-Bandwidth Product

Slew Rate

Settling Time, 0.1%

0.01%

Overload Recovery Time

Total Harmonic Distortion + Noise

POWER SUPPLY

Specified Voltage Range

Minimum Operating Voltage

Quiescent Current (per amplifier)

over Temperature

TEMPERATURE RANGE

Specified Range

Operating Range

Storage Range

Thermal Resistance

SOT23-5 Surface-Mount

SOT23-8 Surface-Mount

MSOP-8 Surface-Mount

SO-8 Surface-Mount

SO-14 Surface-Mount

TSSOP-14 Surface-Mount

SC70-5 Surface-Mount

< (V+) – 1.7V

= 5V, R

= 100kΩ, 0.025V < V

< 4.975V

= 5V, R

= 100k

Ω

, 0.025V < V

< 4.975V

= 5V, R

= 5kΩ, 0.125V < V

< 4.875V

= 5V, R

= 5k

Ω

, 0.125V < V

< 4.875V

= 100kΩ, A

> 94dB

= 100k

Ω

, A

> 90dB

= 5kΩ, A

> 90dB

= 5k

Ω

, A

> 88dB

LOAD

= 100pF

GBW

G = +1

= 5.5V, 2V Step, G = +1

• Gain > V

= 5.5V, V

= 3Vp-p, G = +1, f = 1kHz

2.5

= 0

2.1 to 5.5

0.5

1.6

0.0023

5.5

125

150

200

150

100

250

MHz

V/µs

µs

µA

°C

°C/W

108

CONDITION

MIN

TYP

MAX

UNITS

/dT

PSRR

= 5V, V

= (V–) + 0.8V

0.2

134

175

300

= 2.5V to 5.5V, V

< (V+) – 1.7V

= 2.5V to 5.5V, V

< (V+) – 1.7V

µV/V

V/V

µV/V

Ω

|| pF

Ω

|| pF

µVp-p

nV/√Hz

fA/√Hz

CMRR

(V–) – 0.2V < V

< (V+) – 1.7V

(V–) < V

< (V+) – 1.7V

= 5.5V, (V–) – 0.2V < V

< (V+) + 0.2V

= 5.5V, (V–) < V

< (V+)

(V–) – 0.2

(V+) + 0.2

±0.5

|| 3

|| 6

±10

100

125

±10

See Typical Characteristics

THD+N

–40

–65

OPA348, 2348, 4348

SBOS213C

www.ti.com

TYPICAL CHARACTERISTICS

At T

= +25°C, R

= 100kΩ connected to V

/ 2 and V

OUT

= V

/ 2, unless otherwise noted.

OPEN-LOOP GAIN AND PHASE vs FREQUENCY

140

120

100

PSRR AND CMRR vs FREQUENCY

Open-Loop Gain (dB)

PSRR, CMRR (dB)

100

–20

0.1

100

10k

100k

Frequency (Hz)

Gain

Phase

–45

CMRR

–90

Phase (°)

PSRR

–135

–180

10M

100

10k

100k

10M

Frequency (Hz)

MAXIMUM OUTPUT VOLTAGE vs FREQUENCY

Channel Separation (dB)

Output Voltage (Vp-p)

CHANNEL SEPARATION vs FREQUENCY

140

= 5.5V

= 5V

120

100

= 2.5V

10k

100k

Frequency (Hz)

10M

100

10k

100k

10M

Frequency (Hz)

QUIESCENT AND SHORT-CIRCUIT CURRENT

vs SUPPLY VOLTAGE

2.5

OUTPUT VOLTAGE SWING vs OUTPUT CURRENT

±2.5V

+125°C

+25°C

–40°C

Sourcing Current

Short-Circuit Current (mA)

Output Voltage Swing (V)

1.5

0.5

–0.5

–1

–1.5

–2

+125°C

Sinking Current

Quiescent Current (µA)

–40°C

+25°C

2.5

3.5

4.5

5.5

Supply Voltage (V)

–2.5

Output Current (mA)

OPA348, 2348, 4348

www.ti.com

SBOS213C

TYPICAL CHARACTERISTICS

(Cont.)

At T

= +25°C, R

= 100kΩ connected to V

/ 2 and V

OUT

= V

/ 2, unless otherwise noted.

COMMON-MODE REJECTION vs TEMPERATURE

100

130

OPEN-LOOP GAIN AND PSRR vs TEMPERATURE

, R

= 100kΩ

Common-Mode Rejection (dB)

V– < V

< (V+) – 1.7V

V– < V

< V+

Open-Loop Gain and

Power Supply Rejection (dB)

120

, R

= 5kΩ

110

100

PSRR

–75

–50

–25

100

125

150

Temperature (°C)

–75

–50

–25

100

125

150

Temperature (°C)

QUIESCENT AND SHORT-CIRCUIT CURRENT

vs TEMPERATURE

–75

–50

–25

100

125

150

Temperature (°C)

10k

INPUT BIAS (I

) CURRENT vs TEMPERATURE

Short-Circuit Current (mA)

Quiescent Current (µA)

Input Bias Current (pA)

100

0.1

–75

–50

–25

100

125

150

Temperature (°C)

OFFSET VOLTAGE PRODUCTION DISTRIBUTION

Percent of Amplifiers (%)

OFFSET VOLTAGE DRIFT MAGNITUDE

PRODUCTION DISTRIBUTION

Percentage of Amplifiers (%)

Typical production

distribution of

packaged units.

Typical production

distribution of

packaged units.

–6

–5

–4

–3

–2

–1

Offset Voltage (mV)

Offset Voltage Drift (µV/°C)

OPA348, 2348, 4348

SBOS213C

www.ti.com