OPA378 OPA2378 SBOS417 – JANUARY 2008 Low Noise, 900kHz, 50µV, Rail-to-Rail Input/Output Precision OPERATIONAL AMPLIFIER Zerø-Drift Series FEATURES 1 DESCRIPTION LOW NOISE 0.1Hz to 10Hz: 0.4µVPP LOW OFFSET VOLTAGE: 15µV (typ) QUIESCENT CURRENT: 100µA (typ) OFFSET DRIFT: 0.1µV/°C (typ) SINGLE-SUPPLY OPERATION SUPPLY VOLTAGE: 1.8V to 5.5V microSIZE PACKAGES: SC70 and SOT23 The OPA378 and OPA2378 represent a new generation of micropower operational amplifiers. Rail-to-rail input, low input offset voltage (50µV max), low quiescent current (125µA max), and 900kHz bandwidth make this part very attractive for low-power precision applications. In addition, this part has excellent PSRR, making it an outstanding choice for applications that run directly from batteries without regulation. APPLICATIONS • • • • The OPA378 (single version) is available in a microSIZE SC70-5 and SOT23-5. The OPA2378 (dual version) is offered in s SOT23-8 package. All versions are specified for operation from –40°C to +125°C. BATTERY-POWERED INSTRUMENTS TEMPERATURE MEASUREMENT MEDICAL INSTRUMENTATION HANDHELD TEST EQUIPMENT INPUT CURRENT AND VOLTAGE NOISE SPECTRAL DENSITY vs FREQUENCY 0.1Hz TO 10Hz NOISE 100nV/div Voltage Noise (nV/ÖHz) 100 Voltage Noise 10 0 Time (1s/div) 1 10 100 1k 10k 30k Frequency (Hz) 1 2 3 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. I2C is a trademark of NXP Semiconductors. All other trademarks are the property of their respective owners. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. Copyright © 2008, Texas Instruments Incorporated PRODUCT PREVIEW • • • • • • • 23 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 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 OPA378 SOT23-5 DBV OAZI OPA378 (2) SC70-5 DCK BTS SOT23-8 DCN OCAI OPA2378 (1) (2) (2) 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. Available 1Q08. ABSOLUTE MAXIMUM RATINGS (1) Over operating free-air temperature range (unless otherwise noted). OPA378, OPA2378 UNIT +7 V Supply Voltage PRODUCT PREVIEW Signal Input Terminals Voltage (2) –0.3 ≤ VIN ≤ (V+) + 0.3 V Current (2) ±10 mA Output Short-Circuit (3) Continuous Operating Temperature –55 to +150 °C Storage Temperature –65 to +150 °C Junction Temperature +150 °C Human Body Model (HBM) 4000 V Charged Device Model (CDM) 1000 V Machine Model (MM) 200 V ESD Ratings (1) (2) (3) 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. 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. Short-circuit to ground, one amplifier per package. PIN CONFIGURATIONS +IN V-IN 2 1 OPA378 OPA378 OPA2378 SC70-5 Top View SOT23-5 Top View SC70-5 Top View 5 V+ 2 3 Out V- 4 OUT +In 1 5 V+ -In A 2 3 Out A 4 -In Submit Documentation Feedback 1 2 +In A 3 V- 4 A B 8 V+ 7 Out B 6 -In B 5 +In B Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 ELECTRICAL CHARACTERISTICS: VS = +1.8V to +5.5V Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 10kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. OPA378, OPA2378 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 15 50 µV 0.1 0.25 µV/°C 2 5 µV/V 8 µV/V OFFSET VOLTAGE Input Offset Voltage VOS vs Temperature dVOS/dT vs Power Supply PSRR over Temperature VCM = 0V, VS = +1.8V to +5.5V VCM = 0V, VS = +1.8V to +5.5V Channel Separation, dc µV/V 0.1 INPUT BIAS CURRENT Input Bias Current IB Input Offset Current ±150 IOS ±500 pA ±1000 pA NOISE Input Voltage Noise, f = 0.1Hz to 10Hz en 0.4 µVPP Input Voltage Noise Density, f = 1kHz en 20 nV/√Hz in 200 fA/√Hz Input Current Noise, f = 10Hz Common-Mode Voltage Range VCM Common-Mode Rejection Ratio CMRR (V–) – 0.1 (V+) + 0.1 PRODUCT PREVIEW INPUT VOLTAGE RANGE V (V–) – 0.1V < VCM < (V+) + 0.1V, VS = 5.5V 100 110 dB (V–) – 0.1V < VCM < (V+) + 0.1V, VS = 1.8V 94 103 dB 50mV < VO < (V+) – 50mV, RL = 100kΩ 110 134 dB 100mV < VO < (V+) – 100mV, RL = 10kΩ 110 130 dB 900 kHz OPEN-LOOP GAIN Open-Loop Voltage Gain AOL FREQUENCY RESPONSE CL = 100pF Gain-Bandwidth Product GBW Slew Rate SR G = +1 0.4 V/µs Settling Time 0.1% tD VS = 5.5V, 2V Step, G = +1 5 µs Settling Time 0.01% tD VS = 5.5V, 2V Step, G = +1 7 µs VIN • Gain > VS 4 µs VS = 5.5V, VO = 3VPP, G = +1, f = 1kHz 0.0012 % RL = 10kΩ 6 Overload Recovery Time THD + Noise THD + N OUTPUT Voltage Output Swing from Rail over Temperature RL = 10kΩ Voltage Output Swing from Rail RL = 100kΩ over Temperature Short-Circuit Current Capacitive Load Drive Open-Loop Output Resistance 0.7 RL = 100kΩ ISC 8 mV 10 mV 1 mV 2 mV ±10 mA CLOAD See Typical Characteristics RO See Typical Characteristics POWER SUPPLY Specified Voltage Range Quiescent Current (per Amplifier) VS IQ 1.8 IO = 0V, VS = +5.5V over Temperature 100 5.5 V 125 µA 135 µA Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 3 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 ELECTRICAL CHARACTERISTICS: VS = +1.8V to +5.5V (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 10kΩ connected to VS/2, VCM = VS/2, and VOUT = VS/2, unless otherwise noted. OPA378, OPA2378 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TEMPERATURE RANGE Specified Range –40 +125 °C Operating Range –55 +150 °C Storage Range –65 +150 Thermal Resistance θJA °C °C/W SOT23-5 200 °C/W SC70-5 250 °C/W SOT23-8 100 °C/W PRODUCT PREVIEW 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 TYPICAL CHARACTERISTICS At TA = +25°C, RL = 10kΩ, VS = +5.5V and VOUT = VS/2, unless otherwise noted. MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 6 INPUT CURRENT AND VOLTAGE NOISE SPECTRAL DENSITY vs FREQUENCY 1k VS = 5.5V Current Noise Voltage Noise (nV/ÖHz) Current Noise (fA/ÖHz) Output Voltage (VPP) 5 4 3 2 100 Voltage Noise 10 1 VS = 1.8V 0 10k 100k 1M 1 10M 10 100 1k 10k 30k Frequency (Hz) Frequency (Hz) Figure 1. Figure 2. TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY OPEN-LOOP GAIN AND PHASE vs FREQUENCY 0.0050 180 0 135 -45 0.0045 0.0040 Gain (dB) 0.0030 0.0025 0.0020 Phase 90 -90 -135 45 Phase (°) THD (%) 0.0035 Gain 0.0015 -180 0 0.0010 0.0005 -45 0 10 100 10k 1k 0.01 0.1 1 Frequency (Hz) 10 100 1k 10k 100k 1M -225 10M Frequency (Hz) Figure 3. Figure 4. COMMON-MODE REJECTION RATIO vs FREQUENCY POWER-SUPPLY REJECTION RATIO vs FREQUENCY 120 120 100 100 V+ 80 PSRR (dB) CMRR (dB) 80 60 40 20 V60 40 20 0 0 10 100 1k 10k 100k 1M 1 10 100 1k Frequency (Hz) Frequency (Hz) Figure 5. Figure 6. 10k 100k Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 1M 5 PRODUCT PREVIEW 1k OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10kΩ, VS = +5.5V and VOUT = VS/2, unless otherwise noted. QUIESCENT CURRENT vs SUPPLY VOLTAGE 40 102 35 101 30 100 99 25 IQ (mA) Offset Voltage (V) VOLTAGE OFFSET vs TEMPERATURE 20 15 98 97 96 10 95 5 94 0 93 -50 -25 0 25 50 75 100 125 150 1.0 1.5 2.0 2.5 3.0 Temperature (°C) 5.0 5.5 QUIESCENT CURRENT vs TEMPERATURE INPUT BIAS CURRENT vs INPUT COMMON-MODE VOLTAGE 110 250 108 200 106 150 Input Bias Current (pA) PRODUCT PREVIEW IQ (mA) 4.5 Figure 8. 102 100 98 96 94 6.0 -IN 100 50 0 -50 +IN -100 -150 -200 92 -250 90 -50 -25 0 25 50 75 100 125 0 150 1 2 3 4 6 5 Input Common-Mode Voltage (V) Temperature (°C) Figure 9. Figure 10. INPUT BIAS CURRENT vs TEMPERATURE OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 1500 3 1000 2 VS = +2.75 +25°C -40°C +125°C Output Swing (V) Input Bias Current (pA) 4.0 Figure 7. 104 500 -IN 0 +IN -500 1 0 +125°C VS = ±0.9 +25°C -40°C -1 +125°C VS = -2.75 -2 -1000 +25°C -40°C -3 -1500 -50 -25 0 25 50 75 100 125 150 0 2 Temperature (°C) 4 6 8 10 12 14 16 18 20 Output Current (mA) Figure 11. 6 3.5 VS (V) Figure 12. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10kΩ, VS = +5.5V and VOUT = VS/2, unless otherwise noted. COMMON-MODE REJECTION RATIO AND PSRR vs TEMPERATURE OPEN-LOOP GAIN vs TEMPERATURE 120 140 PSRR 115 105 CMRR VS = 1.8V 100 RL = 100kW 135 VS = 5.5V AOL (dB) PSRR, CMRR (dB) 110 RL = 10kW 130 RL = 5kW 95 90 125 85 120 -50 -25 0 25 50 75 100 125 -50 150 -25 0 25 50 75 100 125 Temperature (°C) Temperature (°C) Figure 13. Figure 14. SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE SMALL-SCALE STEP RESPONSE 150 PRODUCT PREVIEW 80 80 70 Overshoot (%) 60 Output Voltage (50mV/div) Gain = -1V/V RFB = 100kW 50 40 Gain = +1V/V 30 20 10 G = +1 RL = 10kW Gain = -1V/V RFB = 5kW 0 1 10 100 1k Time (4ms/div) 10k Load Capacitor (pF) Figure 15. Figure 16. POSITIVE OVER-VOLTAGE RECOVERY NEGATIVE OVER VOLTAGE RECOVERY 10kW +2.5V 10kW +2.5V 0 0 1kW 1kW OPA378 2.5V 0 1V/div 2.5V 1V/div Output OPA378 2V/div 2V/div Output 0 Input Input Time (10ms/div) Time (4ms/div) Figure 17. Figure 18. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 7 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, RL = 10kΩ, VS = +5.5V and VOUT = VS/2, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION 100nV/div 0.1Hz TO 10Hz NOISE TBD Time (1s/div) PRODUCT PREVIEW Figure 19. Figure 20. OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION OUTPUT IMPEDANCE vs FREQUENCY 0.250 0.225 0.200 0.175 0.150 0.125 0.100 0.075 0.050 0.025 Population Open-Loop Output Resistance (W) 1000 100 400mA 10 2mA 1 0.1 0.01 1 10 Offset Voltage Drift (mV/°C) Figure 21. 8 100 1k 10k 100k 1M 10M Frequency (Hz) Figure 22. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 APPLICATIONS INFORMATION Following these guidelines reduces the likelihood of junctions being at different temperatures, which can cause thermoelectric voltages of 0.1µV/°C or higher, depending on materials used. Current-limiting resistor required if input voltage exceeds supply rails by ³ 0.5V. +5V IOVERLOAD 10mA max OPA378 VOUT VIN 5kW Figure 23. Input Current Protection INTERNAL OFFSET CORRECTION The OPA378 and OPA2378 op amps use an auto-calibration technique with a time-continuous 350kHz op amp in the signal path. This amplifier is zero-corrected every 3µs using a proprietary technique. Upon power-up, the amplifier requires approximately 100µs to achieve specified VOS accuracy. This architecture has no aliasing or flicker noise. GENERAL LAYOUT GUIDELINES OPERATING VOLTAGE The OPA378 and OPA2378 op amps operate over a power-supply range of +1.8V to +5.5V (±0.9V to ±2.75V). Supply voltages higher than +7V (absolute maximum) can permanently damage the device. Parameters that vary over supply voltage or temperature are shown in the Typical Characteristics section of this data sheet. INPUT VOLTAGE The OPA378 and OPA2378 input common-mode voltage range extends 0.1V beyond the supply rails. The OPA378 is designed to cover the full common-mode range without the troublesome transition region found in some other rail-to-rail amplifiers. Normally, input bias current is about 150pA; however, input voltages exceeding the power supplies can cause excessive current to flow into or out of the input pins. Momentary voltages greater than the power supply can be tolerated if the input current is limited to 10mA. This limitation is easily accomplished with an input resistor, as shown in Figure 23. Attention to good layout practices is always recommended. Keep traces short and, when possible, use a printed circuit board (PCB) ground plane with surface-mount components placed as close to the device pins as possible. Place a 0.1µF capacitor closely across the supply pins. These guidelines should be applied throughout the analog circuit to improve performance and provide benefits such as reducing the electromagnetic interference (EMI) susceptibility. Operational amplifiers vary in susceptibility to radio frequency interference (RFI). RFI can generally be identified as a variation in offset voltage or dc signal levels with changes in the interfering RF signal. The OPA378 has been specifically designed to minimize susceptibility to RFI and demonstrates remarkably low sensitivity compared to previous generation devices. Despite this design, strong RF fields may cause varying offset levels. If the amplifier cannot be located away from sources of radiation, shielding may be needed. Twisting wire input leads makes them more resistant to RF fields. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 9 PRODUCT PREVIEW The OPA378 and OPA2378 are unity-gain stable and free from unexpected output phase reversal. These devices use a proprietary auto-calibration technique to provide low offset voltage and very low drift over time and temperature. For lowest offset voltage and precision performance, circuit layout and mechanical conditions should be optimized. Avoid temperature gradients that create thermoelectric (Seebeck) effects in the thermocouple junctions formed from connecting dissimilar conductors. These thermally-generated potentials can be made to cancel by assuring they are equal on both input terminals. Other layout and design considerations include: • Use low thermoelectric-coefficient conditions (avoid dissimilar metals). • Thermally isolate components from power supplies or other heat sources. • Shield op amp and input circuitry from air currents, such as cooling fans. OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 REF3140 +5V 0.1mF 4.096V + R8 150kW R1 6.04kW R5 31.6kW D1 - R2 2.94kW - + + K-Type Thermocouple 40.7mV/°C +5V 10mF 0.1mF R7 549W R4 6.04kW VO OPA378 R6 200W R3 60.4W Zero Adj. Figure 24. Temperature Measurement Figure 25 shows the basic configuration for a bridge amplifier. VEX PRODUCT PREVIEW A low-side current shunt monitor is shown in Figure 26. RN are operational resistors used to isolate the ADS1100 from the noise of the digital I2C™ bus. Because the ADS1100 is a 16-bit converter, a precise reference is essential for maximum accuracy. If absolute accuracy is not required, and the 5V power supply is sufficiently stable, the REF3130 may be omitted. R1 +5V R R R R VOUT OPA378 R1 VREF Figure 25. Single Op Amp Bridge Amplifier +5V REF3130 3V Load R1 4.99kW R2 49.9kW R6 71.5kW V ILOAD RSHUNT 1W RN 56W OPA378 R3 4.99kW Stray Ground-Loop Resistance R4 48.7kW ADS1100 R7 1.18kW RN 56W 2 IC (PGA Gain = 4) FS = 3.0V NOTE: 1% resistors provide adequate common-mode rejection at small ground-loop errors. Figure 26. Low-Side Current Monitor 10 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 Figure 27 shows a high side current monitor. The load current develops a drop across RSHUNT, and the low (or load side, most negative side) of RSHUNT is connected to the noninverting input of the op amp. The op amp feedback forces a replica of this voltage on its inverting input, yielding a drop across RG that is identical to the drop across RSHUNT. RG can be sized to provide whatever current is most convenient to the designer based on this voltage drop. The MOSFET conveys this current out of its drain to ground, where a resistor RL converts the current that flows through RG and the MOSFET back into a voltage. In this way RL/RG sets the voltage gain of this circuit. The op amp is powered by the zener diode, which forms a small power supply window of voltage. For the OPA378, ±VS but must be between 1.8V and 5.5V.Two possible methods are shown to bias the zener, the customary resistor bias and a current mirror. To operate over at the lowest possible voltage for the shunt supply, current mirror biasing could also be used. In either case, note that the voltage at the output terminal of this circuit is restricted by whatever voltage is available at the shunt. Resistor R1 and the diode on the noninverting input provide protection in situations where the load might be shorted out. These components clamp the noninverting input to within a diode drop of the negative rail of the op amp under short-circuit conditions. RG zener (1) V+ (2) R1 10kW CBYPASS MOSFET rated to stand-off supply voltage such as BSS84 for up to 50V. OPA378 +5V PRODUCT PREVIEW RSHUNT V+ Two zener biasing methods (3) are shown. Output Load RBIAS RL NOTES: (1) zener rated for op amp supply capability (that is, 5.1V for OPA378). (2) Current-limiting resistor. (3) Choose zener biasing resistor or dual NMOSFETs (FDG6301N, NTJD4001N, or Si1034) Figure 27. High-Side Current Monitor 1MW 100kW 60kW V1 -In INA152 OPA378 3V 1MW NTC Thermistor R2 OPA378 R1 5 2 6 R2 3 Figure 28. Thermistor Measurement VO 1 OPA378 V2 +In VO = (1 + 2R2/R1) (V2 - V1) Figure 29. Precision Instrumentation Amplifier Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 11 OPA378 OPA2378 www.ti.com SBOS417 – JANUARY 2008 +VS R1 100kW fLPF = 150Hz C4 1.06nF 1/2 OPA2378 RA +VS R2 100kW R6 100kW 1/2 OPA2378 +VS 3 2 LL 7 INA321 (1) 4 5 R8 100kW +VS dc R3 100kW 1/2 OPA2378 Wilson LA R14 1MW GTOT = 1kV/V R7 100kW ac GINA = 5 R12 5kW 6 +VS 1 VOUT OPA378 C3 1m F R13 318kW GOPA = 200 +VS 1/2 OPA2378 VCENTRAL C1 47pF (RA + LA + LL)/3 fHPF = 0.5Hz (provides ac signal coupling) 1/2 VS PRODUCT PREVIEW R5 390kW R9 20kW +VS R4 100kW 1/2 OPA2378 RL Inverted VCM +VS VS = +2.7V to +5.5V 1/2 OPA2378 BW = 0.5Hz to 150Hz +VS R10 1MW 1/2 VS C2 0.64mF NOTE: (1) Other instrumentation amplifiers can be used, such as the INA326, which has lower noise, but higher quiescent current. R11 1MW fO = 0.5Hz Figure 30. Single-Supply, Very Low Power, ECG Circuit 12 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): OPA378 OPA2378 PACKAGE OPTION ADDENDUM www.ti.com 3-Jan-2008 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty OPA378AIDBVR PREVIEW SOT-23 DBV 5 3000 TBD Call TI Call TI OPA378AIDBVT PREVIEW SOT-23 DBV 5 250 TBD Call TI Call TI Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. 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. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1