Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SOIC 8

V+

-In

Out

V-

+In

OPA348

SOT23-5

V+

Out

+In

V-

-In

OPA348

SC70-5

V+

Out B

-In B

+In B

Out A

-In A

+In A

V-

OPA2348

SOT23-8, SO-8

V+

Out

-In

+In

V-

OPA348

SO-8

Out D

-In D

+In D

V-

+In C

-In C

Out C

Out A

-In A

+In A

V+

+In B

-In B

Out B

OPA4348

TSSOP-14, SO-14

A D

B C

OPA348

OPA2348

OPA4348

OPA348

OPA2348

OPA4348

www.ti.com

SBOS213G –NOVEMBER 2001–REVISED MARCH 2013

1MHz, 45µA, CMOS, Rail-to-Rail

OPERATIONAL AMPLIFIERS

Value Line Series

Check for Samples: OPA348, OPA2348, OPA4348

FEATURES

DESCRIPTION

The OPA348 series amplifiers are single supply, low-

• LOW I

: 45μA Typical

power, CMOS op amps in micro packaging. Featuring

• LOW COST

an extended bandwidth of 1MHz, and a supply

• RAIL-TO-RAIL INPUT AND OUTPUT

current of 45μA, the OPA348 series is useful for low-

power applications on single supplies of 2.1V to 5.5V.

• SINGLE SUPPLY: +2.1V to +5.5V

• INPUT BIAS CURRENT: 0.5pA

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

of 0.5pA, make the OPA348 series an optimal

• MicroSIZE PACKAGES:

candidate for low-power, high-impedance applications

SC70-5, SOT23-8 and TSSOP-14

such as smoke detectors and other sensors.

• HIGH SPEED: POWER WITH BANDWIDTH:

The OPA348 is available in the miniature SC70-5,

1MHz

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

available in SOT23-8 and SO-8 packages, and the

APPLICATIONS

OPA4348 is offered in space-saving TSSOP-14 and

• PORTABLE EQUIPMENT

SO-14 packages. The extended temperature range of

–40°C to +125°C over all supply voltages offers

• BATTERY-POWERED EQUIPMENT

additional design flexibility.

• SMOKE ALARMS

• CO DETECTORS

• MEDICAL INSTRUMENTATION

PACKAGES OPA348 OPA2348 OPA4348

MSOP-8 X

SC70-5 X

SO-8 X X

SO-14 X

SOT23-5 X

SOT23-8 X

TSSOP-14 X

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.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (31 pages)

PAGE 1
OP A3 48 OP A2 3 48 OP A3 OPA348 OPA2348 OPA4348 ¨ 48 OP A4 34 8 www.ti.com SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 1MHz, 45µA, CMOS, Rail-to-Rail OPERATIONAL AMPLIFIERS Value Line Series Check for Samples: OPA348, OPA2348, OPA4348 FEATURES DESCRIPTION • • • • • • The OPA348 series amplifiers are single supply, lowpower, CMOS op amps in micro packaging.
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OPA348 OPA2348 OPA4348 SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com 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.
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OPA348 OPA2348 OPA4348 www.ti.com SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 ELECTRICAL CHARACTERISTICS: VS = 2.5V to 5.5V Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 100kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted. OPA348, OPA2348, OPA4348 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 1 5 mV 6 mV OFFSET VOLTAGE Input Offset Voltage VOS VS = 5V, VCM = (V–) + 0.
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OPA348 OPA2348 OPA4348 SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com ELECTRICAL CHARACTERISTICS: VS = 2.5V to 5.5V (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 100kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted. OPA348, OPA2348, OPA4348 PARAMETER TEST CONDITIONS FREQUENCY RESPONSE TYP MAX UNIT CL = 100pF Gain-Bandwidth Product GBP Slew Rate SR Settling Time, 0.1% tS Settling Time, 0.
PAGE 5
OPA348 OPA2348 OPA4348 www.ti.com SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS At TA = +25°C, RL = 100kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted. OPEN-LOOP GAIN AND PHASE vs FREQUENCY 140 PSRR AND CMRR vs FREQUENCY 100 0 -45 80 Gain 60 Phase -90 40 20 PSRR, CMRR (dB) 80 100 Phase (°) Open-Loop Gain (dB) 120 -135 CMRR 60 40 PSRR 20 0 -20 0.1 1 10 100 1k 10k 100k 1M 0 -180 10M 10 100 1k Frequency (Hz) Figure 1.
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OPA348 OPA2348 OPA4348 SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 100kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted. COMMON-MODE REJECTION vs TEMPERATURE OPEN-LOOP GAIN AND PSRR vs TEMPERATURE 130 AOL, RL = 100kW Open-Loop Gain and Power-Supply Rejection (dB) Common-Mode Rejection (dB) 100 90 V- < VCM < (V+) - 1.
PAGE 7
OPA348 OPA2348 OPA4348 www.ti.com SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 100kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted. SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE PERCENT OVERSHOOT vs LOAD CAPACITANCE 60 60 50 40 40 Overshoot (%) Small-Signal Overshoot (%) G = -1V/V, RFB = 100kW 50 30 G = +1V/V, RL = 100kW 20 30 20 G = -1V/V, RFB = 5kW G = ±5V/V, RFB = 100kW 10 10 0 0 10 100 1k 10k 10 100 Figure 14.
PAGE 8
OPA348 OPA2348 OPA4348 SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com APPLICATION INFORMATION The OPA348 series op amps are unity-gain stable and suitable for a wide range of general-purpose applications. The OPA348 series features wide bandwidth and unity-gain stability with rail-to-rail input and output for increased dynamic range. Figure 19 shows the input and output waveforms for the OPA348 in unity-gain configuration.
PAGE 9
OPA348 OPA2348 OPA4348 www.ti.com SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 RAIL-TO-RAIL INPUT RAIL-TO-RAIL OUTPUT The input common-mode range extends from (V–) – 0.2V to (V+) + 0.2V. For normal operation, inputs should be limited to this range. The absolute maximum input voltage is 500mV beyond the supplies. Inputs greater than the input common-mode range but less than the maximum input voltage, while not valid, will not cause any damage to the op amp.
PAGE 10
OPA348 OPA2348 OPA4348 SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com In unity-gain inverter configuration, phase margin can be reduced by the reaction between the capacitance at the op amp input, and the gain setting resistors, thus degrading capacitive load drive. Best performance is achieved by using small valued resistors.
PAGE 11
OPA348 OPA2348 OPA4348 www.ti.com SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 +5V 0.1mF 0.1mF 1 VREF 8 V+ DCLOCK 500W +In ADS7822 12-Bit A/D OPA348 2 VIN -In CS/SHDN 3 3300pF DOUT 7 6 Serial Interface 5 GND 4 VIN = 0V to 5V for 0V to 5V output. NOTE: A/D Input = 0 to VREF RC network filters high frequency noise. Figure 25. OPA348 in Noninverting Configuration Driving ADS7822 V+ = +2.7V to 5V Passband 300Hz to 3kHz R9 510kW R1 1.
PAGE 12
OPA348 OPA2348 OPA4348 SBOS213G – NOVEMBER 2001 – REVISED MARCH 2013 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision F (October 2012) to Revision G • Page Changed 2nd footnote for Absolute Maximum Ratings table ...............................................................................................
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.
PAGE 14
PACKAGE OPTION ADDENDUM www.ti.
PAGE 15
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
PAGE 16
PACKAGE MATERIALS INFORMATION www.ti.com 24-Jul-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ OPA2348AIDCNR SOT-23 3000 179.0 DCN 8 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) 8.4 3.2 3.2 1.4 4.0 W Pin1 (mm) Quadrant 8.0 Q3 OPA2348AIDCNT SOT-23 DCN 8 250 179.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 OPA2348AIDGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.
PAGE 17
PACKAGE MATERIALS INFORMATION www.ti.com 24-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2348AIDCNR SOT-23 DCN 8 3000 203.0 203.0 35.0 OPA2348AIDCNT SOT-23 DCN 8 250 203.0 203.0 35.0 OPA2348AIDGKR VSSOP DGK 8 2500 366.0 364.0 50.0 OPA2348AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA348AIDBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 OPA348AIDBVR SOT-23 DBV 5 3000 195.0 200.0 45.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.