Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp J-FET SOIC 14

OPA2141

OPA141

OPA4141

200nV/div

Time(1s/div)

Competitor’sDevice

OPAx141

V = 18V

SUPPLY

OPA141

OPA2141

OPA4141

www.ti.com

SBOS510B –MARCH 2010–REVISED MAY 2010

Single-Supply, 10MHz, Rail-to-Rail Output,

Low-Noise, JFET Amplifier

Check for Samples: OPA141, OPA2141, OPA4141

FEATURES

DESCRIPTION

• Low Supply Current: 2.3mA max

The OPA141, OPA2141, and OPA4141 amplifier

family is a series of low-power JFET input amplifiers

• Low Offset Drift: 10mV/°C max

that feature good drift and low input bias current. The

• Low Input Bias Current: 20pA max

rail-to-rail output swing and input range that includes

• Very Low 1/f Noise: 250nV

V– allow designers to take advantage of the

• Low Noise: 6.5nV/√Hz low-noise characteristics of JFET amplifiers while

also interfacing to modern, single-supply, precision

• Wide Bandwidth: 10MHz

analog-to-digital converters (ADCs) and

• Slew Rate: 20V/ms

digital-to-analog converters (DACs).

• Input Voltage Range Includes V–

The OPA141 achieves 10MHz unity-gain bandwidth

• Rail-to-Rail Output

and 20V/ms slew rate while consuming only 1.8mA

• Single-Supply Operation: 4.5V to 36V (typ) of quiescent current. It runs on a single 4.5 to

36V supply or dual ±2.25V to ±18V supplies.

• Dual-Supply Operation: ±2.25V to ±18V

All versions are fully specified from –40°C to +125°C

• No Phase Reversal

for use in the most challenging environments. The

• MSOP-8, TSSOP Packages

OPA141 (single) and OPA2141 (dual) versions are

available in both MSOP-8 and SO-8 packages; the

APPLICATIONS

OPA4141 (quad) is available in the SO-14 and

• Battery-Powered Instruments

TSSOP-14 packages.

• Industrial Controls

Summary of content (30 pages)

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OP A1 41 OP A2 141 OPA141 OPA2141 OPA4141 OP A4 14 1 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 Single-Supply, 10MHz, Rail-to-Rail Output, Low-Noise, JFET Amplifier Check for Samples: OPA141, OPA2141, OPA4141 FEATURES DESCRIPTION • • • • • • • • • • • • • The OPA141, OPA2141, and OPA4141 amplifier family is a series of low-power JFET input amplifiers that feature good drift and low input bias current.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 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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OPA141 OPA2141 OPA4141 www.ti.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com ELECTRICAL CHARACTERISTICS: VS = +4.5V to +36V; ±2.25V to ±18V Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. OPA141, OPA2141, OPA4141 PARAMETER CONDITIONS MIN TYP MAX UNIT ±1 ±3.5 mV ±4.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 ELECTRICAL CHARACTERISTICS: VS = +4.5V to +36V; ±2.25V to ±18V (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. OPA141, OPA2141, OPA4141 PARAMETER CONDITIONS MIN TYP MAX UNIT V OUTPUT Voltage Output Short-Circuit Current VO ISC RL = 10kΩ (V–)+0.2 (V+)–0.2 RL = 2kΩ (V–)+0.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com PIN ASSIGNMENTS OPA141 SO-8, MSOP-8 (TOP VIEW) NC (1) -In OPA4141 SO-14, TSSOP-14 (TOP VIEW) 1 8 NC 2 7 V+ (1) Out A 1 -In A 2 A +In V- 3 6 4 5 Out NC (1) NC denotes no internal connection.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 TYPICAL CHARACTERISTICS SUMMARY TABLE OF GRAPHS Table 1.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, VS = ±18V, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. OFFSET VOLTAGE DRIFT DISTRIBUTION 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 5.7 6.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±18V, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. COMMON-MODE REJECTION RATIO vs TEMPERATURE 0.1Hz to 10Hz NOISE 0.12 0.08 100nV/div CMRR (mV/V) 0.10 0.06 0.04 0.02 0 -75 -50 -25 0 25 75 50 100 125 Time (1s/div) 150 Temperature (°C) Figure 8. Figure 9.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±18V, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. GAIN AND PHASE vs FREQUENCY 1.75 120 1.50 100 1.25 80 Gain (dB) 140 1.00 0.75 180 Gain 135 90 60 40 Phase 45 20 0.50 0.25 0 Specified Supply-Voltage Range 0 100M -20 0 0 4 8 12 16 20 24 28 Phase (degrees) IQ (mA) QUIESCENT CURRENT vs SUPPLY VOLTAGE 2.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±18V, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. SMALL-SIGNAL OVERSHOOT vs CAPACITIVE LOAD (100mV Output Step) NO PHASE REVERSAL 45 RI = 2kW 40 RF = 2kW G = -1 +15V ROUT = 0W ROUT 35 ROUT = 24W CL 30 -15V 5V/div Overshoot (%) Output OPA141 25 20 15 +18V OPA141 ROUT = 51W Output 10 -18V 37VPP Sine Wave (±18.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±18V, RL = 2kΩ connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted. LARGE-SIGNAL STEP RESPONSE LARGE-SIGNAL STEP RESPONSE G = +1 CL = 100pF 2V/div 2V/div G = -1 CL = 100pF Time (400ns/div) Time (400ns/div) Figure 26. Figure 27.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 APPLICATION INFORMATION OPERATING VOLTAGE The OPA141, OPA2141, and OPA4141 series of op amps can be used with single or dual supplies from an operating range of VS = +4.5V (±2.25V) and up to VS = +36V (±18V). These devices do not require symmetrical supplies; they only require a minimum supply voltage of +4.5V (±2.25V). For VS less than ±3.5V, the common-mode input range does not include midsupply.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com BASIC NOISE CALCULATIONS Low-noise circuit design requires careful analysis of all noise sources. External noise sources can dominate in many cases; consider the effect of source resistance on overall op amp noise performance. Total noise of the circuit is the root-sum-square combination of all noise components. The resistive portion of the source impedance produces thermal noise proportional to the square root of the resistance.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 PHASE-REVERSAL PROTECTION The OPA141, OPA2141, and OPA4141 family has internal phase-reversal protection. Many FET- and bipolar-input op amps exhibit a phase reversal when the input is driven beyond its linear common-mode range. This condition is most often encountered in noninverting circuits when the input is driven beyond the specified common-mode voltage range, causing the output to reverse into the opposite rail.
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OPA141 OPA2141 OPA4141 SBOS510B – MARCH 2010 – REVISED MAY 2010 www.ti.com MAXIMUM SUPPLY VOLTAGE vs TEMPERATURE (Quiescent Condition) 20 TSSOP Quad SOIC Quad MSOP Dual SOIC Dual Maximum Supply Voltage (V) 18 16 14 12 10 8 6 4 2 0 80 90 100 110 120 130 140 150 160 Ambient Temperature (°C) Figure 33.
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OPA141 OPA2141 OPA4141 www.ti.com SBOS510B – MARCH 2010 – REVISED MAY 2010 Figure 35 depicts a specific example where the input voltage, VIN, exceeds the positive supply voltage (+VS) by 500mV or more. Much of what happens in the circuit depends on the supply characteristics. If +VS can sink the current, one of the upper input steering diodes conducts and directs current to +VS. Excessively high current levels can flow with increasingly higher VIN.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-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.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA141AIDGKR VSSOP DGK 8 OPA141AIDGKT VSSOP DGK OPA141AIDR SOIC D OPA2141AIDGKR VSSOP OPA2141AIDGKT SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 8 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 8 2500 330.0 12.4 6.4 5.2 2.1 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA141AIDGKR VSSOP DGK 8 2500 367.0 367.0 35.0 OPA141AIDGKT VSSOP DGK 8 250 210.0 185.0 35.0 OPA141AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA2141AIDGKR VSSOP DGK 8 2500 367.0 367.0 35.0 OPA2141AIDGKT VSSOP DGK 8 250 210.0 185.0 35.0 OPA2141AIDR SOIC D 8 2500 367.0 367.0 35.
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