Datasheet

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OPA314

OPA2314

OPA4314

www.ti.com

SBOS563F –MAY 2011–REVISED AUGUST 2013

3-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS

Operational Amplifier

Check for Samples: OPA314, OPA2314, OPA4314

FEATURES

DESCRIPTION

The OPA314 family of single-, dual-, and quad-

• Low I

: 150 µA/ch

channel operational amplifiers represents a new

• Wide Supply Range: 1.8 V to 5.5 V

generation of low-power, general-purpose CMOS

• Low Noise: 14 nV/√Hz at 1 kHz

amplifiers. Rail-to-rail input and output swings, low

quiescent current (150 μA typ at 5.0 V

) combined

• Gain Bandwidth: 3 MHz

with a wide bandwidth of 3 MHz, and very low noise

• Low Input Bias Current: 0.2 pA

(14 nV/√Hz at 1 kHz) make this family very attractive

• Low Offset Voltage: 0.5 mV

for a variety of battery-powered applications that

require a good balance between cost and

• Unity-Gain Stable

performance. The low input bias current supports

• Internal RF/EMI Filter

applications with mega-ohm source impedances.

• Extended Temperature Range:

The robust design of the OPA314 devices provides

–40°C to +125°C

ease-of-use to the circuit designer: unity-gain stability

with capacitive loads of up to 300 pF, an integrated

APPLICATIONS

RF/EMI rejection filter, no phase reversal in overdrive

• Battery-Powered Instruments:

conditions, and high electrostatic discharge (ESD)

protection (4-kV HBM).

– Consumer, Industrial, Medical

– Notebooks, Portable Media Players These devices are optimized for low-voltage

operation as low as +1.8 V (±0.9 V) and up to +5.5 V

• Photodiode Amplifiers

(±2.75 V), and are specified over the full extended

• Active Filters

temperature range of –40°C to +125°C.

• Remote Sensing

The OPA314 (single) is available in both SC70-5 and

• Wireless Metering

SOT23-5 packages. The OPA2314 (dual) is offered in

• Handheld Test Equipment SO-8, MSOP-8, and DFN-8 packages. The quad-

channel OPA4314 is offered in a TSSOP-14 package.

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 (36 pages)

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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 3-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS Operational Amplifier Check for Samples: OPA314, OPA2314, OPA4314 FEATURES DESCRIPTION • • • • • • • • • The OPA314 family of single-, dual-, and quadchannel operational amplifiers represents a new generation of low-power, general-purpose CMOS amplifiers. Rail-to-rail input and output swings, low quiescent current (150 μA typ at 5.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 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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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 ELECTRICAL CHARACTERISTICS: VS = +1.8 V to +5.5 V (1) Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25 °C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. OPA314, OPA2314, OPA4314 PARAMETER TEST CONDITIONS MIN TYP MAX 0.5 2.5 UNIT OFFSET VOLTAGE VOS Input offset voltage dVOS/dT vs Temperature PSRR vs power supply VCM = (VS+) – 1.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com ELECTRICAL CHARACTERISTICS: VS = +1.8 V to +5.5 V(1) (continued) Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25 °C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. OPA314, OPA2314, OPA4314 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT FREQUENCY RESPONSE VS = 1.8 V, RL = 10 kΩ, CL = 10 pF 2.7 MHz VS = 5.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 THERMAL INFORMATION: OPA314 OPA314 THERMAL METRIC (1) DBV (SOT23) DCK (SC70) 5 PINS 5 PINS θJA Junction-to-ambient thermal resistance 228.5 281.4 θJC(top) Junction-to-case(top) thermal resistance 99.1 91.6 θJB Junction-to-board thermal resistance 54.6 59.6 ψJT Junction-to-top characterization parameter 7.7 1.5 ψJB Junction-to-board characterization parameter 53.8 58.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 TYPICAL CHARACTERISTICS Table 1.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. OPEN-LOOP GAIN AND PHASE vs FREQUENCY RL = 10 kW/10 pF VS = ±2.5 V 140 -20 10 kW, 5.5 V 100 -40 80 -60 60 -80 40 -100 20 -120 0 -140 -20 1 10 100 1k 10k 100k 1M Phase (°) Gain (dB) 120 0 Open-Loop Gain (dB) 140 OPEN-LOOP GAIN vs TEMPERATURE -160 10M 130 2 kW, 5.5 V 120 10 kW, 1.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. OFFSET VOLTAGE vs COMMON-MODE VOLTAGE OFFSET VOLTAGE vs TEMPERATURE 1000 1500 800 1000 Offset Voltage (mV) Offset Voltage (mV) 600 400 200 0 -200 -400 -600 -800 -2 0 -500 -1000 Typical Units VS = ±2.75 V -1000 -2.75 500 Typical Units VS = ±2.75 V -1500 -1.25 -0.5 0 0.5 1.25 2 2.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. VOLTAGE NOISE vs COMMON-MODE VOLTAGE INPUT BIAS AND OFFSET CURRENT vs TEMPERATURE 20 1000 900 18 800 Input Bias Current (pA) Voltage Noise (nV/ÖHz) VS = ±2.75 V f = 1 kHz 16 14 12 700 IB 600 500 400 300 200 IOS 100 10 0 0 0.5 1 2 1.5 2.5 3 3.5 4 5 4.5 5.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. CLOSED-LOOP GAIN vs FREQUENCY 40 SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE 70 VS = 5.5 V G = -1 V/V G = +1 V/V G = +10 V/V 60 50 Gain (dB) Overshoot (%) 20 0 40 30 20 VS = ±2.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. POSITIVE OVERLOAD RECOVERY NEGATIVE OVERLOAD RECOVERY 3 1 0.5 Output 2 Voltage (0.5 V/div) Voltage (0.5 V/div) 2.5 1.5 1 0.5 0 Input 0 -0.5 -1 -1.5 -2 Output Input -0.5 -2.5 -1 -3 0 4 2 6 8 10 12 14 0 6 8 10 Figure 25. Figure 26.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. ELECTROMAGNETIC INTERFERENCE REJECTION RATIO REFERRED TO NONINVERTING INPUT (EMIRR IN+) vs FREQUENCY Total Harmonic Distortion + Noise (%) VS = ±2.5 V VOUT = 0.5 VRMS BW = 80 kHz G = +1 V/V 0.01 Load = 2 kW 0.001 Load = 10 kW 0.0001 10 100 1k 10k 100k EMIRR IN+ (dB) THD+N vs FREQUENCY 0.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com APPLICATION INFORMATION The OPA314 is a family of low-power, rail-to-rail input and output operational amplifiers specifically designed for portable applications. These devices operate from 1.8 V to 5.5 V, are unity-gain stable, and suitable for a wide range of general-purpose applications. The class AB output stage is capable of driving ≤ 10-kΩ loads connected to any point between V+ and ground.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 INPUT AND ESD PROTECTION The OPA314 family incorporates internal electrostatic discharge (ESD) protection circuits on all pins. In the case of input and output pins, this protection primarily consists of current-steering diodes connected between the input and power-supply pins.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com CAPACITIVE LOAD AND STABILITY The OPA314 is designed to be used in applications where driving a capacitive load is required. As with all op amps, there may be specific instances where the OPA314 can become unstable. The particular op amp circuit configuration, layout, gain, and output loading are some of the factors to consider when establishing whether or not an amplifier is stable in operation.
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OPA314 OPA2314 OPA4314 www.ti.com SBOS563F – MAY 2011 – REVISED AUGUST 2013 APPLICATION EXAMPLES GENERAL CONFIGURATIONS When receiving low-level signals, limiting the bandwidth of the incoming signals into the system is often required. The simplest way to establish this limited bandwidth is to place an RC filter at the noninverting terminal of the amplifier, as Figure 36 shows. RG RF R1 VOUT VIN C1 f-3 dB = ( RF VOUT = 1+ RG VIN (( 1 1 + sR1C1 1 2pR1C1 ( Figure 36.
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OPA314 OPA2314 OPA4314 SBOS563F – MAY 2011 – REVISED AUGUST 2013 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision E (September 2012) to Revision F • Page Changed document title (removed "Value Line Series") ...................................................................................................... 1 Changes from Revision D (March 2012) to Revision E • Page Added "Value Line Series" to title ....
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 22-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.
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PACKAGE MATERIALS INFORMATION www.ti.com 13-May-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA2314AIDGKR VSSOP SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 OPA2314AIDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 OPA2314AIDRBR SON DRB 8 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 13-May-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2314AIDGKR VSSOP DGK 8 2500 366.0 364.0 50.0 OPA2314AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA2314AIDRBR SON DRB 8 3000 367.0 367.0 35.0 OPA2314AIDRBT SON DRB 8 250 210.0 185.0 35.0 OPA314AIDBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 OPA314AIDBVT SOT-23 DBV 5 250 180.0 180.0 18.
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