OPA2335M SGLS320 – SEPTEMBER 2006 0.05 µV/°C MAX, SINGLE-SUPPLY CMOS OPERATIONAL AMPLIFIER ZERO-DRIFT SERIES FEATURES Low Offset Voltage: 5 µV (max) Zero Drift: 0.02 µV/°C (typ) Quiescent Current: 570 µA Single-Supply Operation Ceramic DIP Package The OPA2335 CMOS operational amplifier uses auto-zeroing techniques to simultaneously provide very low offset voltage (5 µV max), and near-zero drift over time and temperature. This high-precision, low quiescent current amplifier offers high input impedance and rail-to-rail output swing. Single or dual supplies as low as 2.7 V (±1.35 V) and up to 5.5 V (±2.75 V) may be used. This op amp is optimized for low-voltage, single-supply operation. APPLICATIONS Transducer Applications Temperature Measurement Electronic Scales Medical Instrumentation Battery-Powered Instruments Handheld Test Equipment Offset Voltage − µV G001 Offset Voltage Drift − µV/°C 0.050 0.045 0.040 0.035 0.030 0.025 0.020 0.015 Absolute Value; Centered Around Zero 0.000 −3.0 −2.7 −2.4 −2.1 −1.8 −1.5 −1.2 −0.9 −0.6 −0.3 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 Population Population The OPA2335 is available in a CDIP-8 package and is specified for operation from –55°C to 125°C. 0.010 • • • • • • 0.005 • • • • • DESCRIPTION G002 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 the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006, Texas Instruments Incorporated OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 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. PACKAGE/ORDERING INFORMATION PRODUCT PACKAGE LEAD PACKAGE DESIGNATOR SPECIFIED TEMPERATURE RANGE PACKAGE MARKING ORDERING NUMBER OPA2335 CDIP-8 JG –55°C to 125°C OPA2335AMJG OPA2335AMJG PIN CONFIGURATIONS OPA2335 Out A 1 -In A 2 +In A 3 A B V- 4 8 V+ 7 Out B 6 -In B 5 +In B CDIP P0037-01 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VALUE Supply voltage UNIT 7V Signal input terminals Voltage (2) –0.5 to (V+) + 0.5 V Current (2) ±10 mA Output short circuit (3) Continuous Operating temperature TA –55 to 150 °C Storage temperature TA –65 to 150 °C Junction temperature 150 °C Lead temperature (soldering, 10s) 300 °C (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 implied. Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5 V beyond the supply rails should be current-limited to 10 mA or less. Short-circuit to ground, one amplifier per package ELECTRICAL CHARACTERISTICS At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2, and VOUT = VS/2 (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OFFSET VOLTAGE Input offset voltage VOS VCM = VS/2 TA = 25°C 1 TA = Full range vs Temperature 2 ±0.02 dVOS/dT Submit Documentation Feedback 5 µV 10 µV/°C OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 ELECTRICAL CHARACTERISTICS (continued) At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2, and VOUT = VS/2 (unless otherwise noted) PARAMETER vs Power supply TEST CONDITIONS PSSR VS = 2.7 V to 5.5 V MIN TA = Full range Long-term stability TYP MAX UNIT ±1 ±2 µV/V See Note Channel separation, dc (1) µV/V 0.1 INPUT BIAS CURRENT Input bias current IB VCM = VS/2 ±70 TA = 25°C TA = Full range Input offset current ±200 1 ±120 IOS pA nA ±400 pA NOISE Input voltage noise en f = 0.01 Hz to 10 Hz 1.4 µVpp Input current noise density in f = 10 Hz 20 fA/√Hz INPUT VOLTAGE RANGE Common-mode voltage range VCM Common-mode rejection ratio CMRR (V–) –0.1 (V+) –1.5 V (V–) – 0.1 V < VCM < (V+) – 1.5V TA = 25°C 110 130 dB (V–) < VCM < (V+) – 1.5V TA = Full range 110 130 dB Differential 1 pF Common-mode 5 pF INPUT CAPACITANCE OPEN-LOOP GAIN Open-loop voltage gain AOL 50 mV < VO < (V+) – 50 mV, RL = 100 kΩ, VCM = VS/2 TA = Full range 110 130 dB 100 mV < VO < (V+) – 100 mV, RL = 10 kΩ, VCM = VS/2 TA = Full range 110 130 dB FREQUENCY RESPONSE Gain-Bandwidth Product GBW Slew Rate SR G = +1 2 MHz 1.6 V/µs OUTPUT Voltage output swing from rail Short-circuit current ISC Capacitive load drive CLOAD RL = 10 kΩ TA = Full range 15 100 mV RL = 100 kΩ TA = Full range 1 50 mV ±50 mA See Typical Characteristics POWER SUPPLY Operating voltage range Quiescent current 2.7 IQ (total-2 amplifiers) IO = 0, VS = +5 V 5.5 V 700 µA 900 µA –55 125 °C –65 150 TA = 25°C 570 TA = Full range TEMPERATURE RANGE Operating range TA Storage range Thermal resistance (1) θJA 119 °C °C/W 500-hour life test at 150°C demonstrated randomly distributed variation approximately equal to measurement repeatability of 1 µV. Submit Documentation Feedback 3 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 TYPICAL CHARACTERISTICS At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2 and VOUT = VS/2 (unless otherwise noted) OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION Population Offset Voltage − µV Offset Voltage Drift − µV/°C G001 Figure 1. Figure 2. OFFSET VOLTAGE SWING vs OUTPUT CURRENT INPUT BIAS CURRENT vs COMMON-MODE VOLTAGE (V+) 0.050 0.045 0.040 0.035 0.025 0.020 0.015 0.010 0.005 0.000 −3.0 −2.7 −2.4 −2.1 −1.8 −1.5 −1.2 −0.9 −0.6 −0.3 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 Absolute Value; Centered Around Zero 0.030 Population OFFSET VOLTAGE PRODUCTION DISTRIBUTION G002 1200 1255C | Input Bias Current | − pA Output Voltage Swing − V 1000 255C (V+) − 1 −405C 2.7 V 5.5 V (V+) + 1 1255C 255C −405C 800 600 400 200 (V−) 0 2 4 6 IO − Output Current − mA 8 10 0 0.0 G003 Figure 3. 4 1255C −405C 0.5 1.0 255C 1.5 2.0 3.0 3.5 G004 Figure 4. Submit Documentation Feedback 2.5 Common-Mode Voltage − V OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2 and VOUT = VS/2 (unless otherwise noted) INPUT BIAS CURRENT vs TEMPERATURE QUIESCENT CURRENT (per channel) vs TEMPERATURE 1k 400 VS = 5.5 V 300 Quiescent Current − µA | Input Bias Current | − pA 350 100 250 VS = 2.7 V 200 150 100 50 10 −40 −20 0 20 40 60 80 100 0 −40 120 TA − Free-Air Temperature − °C −20 0 G005 Figure 5. 60 80 100 120 G006 LARGE-SIGNAL RESPONSE 140 −80 G = −1 CL = 300 pF 100 −100 80 −110 60 −120 Gain 40 −130 20 −140 0 −150 1 10 100 1k 10k 100k 1M VO − Output Voltage − 1 V/div −90 Phase Phase − ° 120 Gain − dB 40 Figure 6. OPEN-LOOP GAIN/PHASE vs FREQUENCY −20 0.1 20 TA − Free-Air Temperature − °C −160 10M f − Frequency − Hz G007 Figure 7. t − Time − 5 µs/div G008 Figure 8. Submit Documentation Feedback 5 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2 and VOUT = VS/2 (unless otherwise noted) SMALL-SIGNAL RESPONSE POSITIVE OVER-VOLTAGE RECOVERY VO − Output Voltage − 50 mV/div 200 mV/div G=1 CL = 50 pF 0 Input 10 kΩ 1 V/div 2.5 V Output 100 Ω 0 − OPA335 + −2.5 V t − Time − 5 µs/div t − Time − 25 µs/div G009 Figure 9. Figure 10. NEGATIVE OVER-VOLTAGE RECOVERY COMMON-MODE REJECTION vs FREQUENCY G010 CMMR − Common-Mode Rejection Ratio − dB 200 mV/div 140 Input 0 0 10 kΩ 1 V/div 2.5 V 100 Ω − Output OPA335 + −2.5 V 120 100 80 60 40 20 0 t − Time − 25 µs/div 1 G011 Figure 11. 6 10 100 1k 10k 1M 10M f − Frequency − Hz G012 Figure 12. Submit Documentation Feedback 100k OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2 and VOUT = VS/2 (unless otherwise noted) POWER-SUPPLY REJECTION RATIO vs FREQUENCY SAMPLING FREQUENCY vs SUPPLY VOLTAGE 11.0 10.9 120 +PSRR 10.8 100 f − Frequency − kHz PSRR − Power-Supply Rejection Ratio − dB 140 80 60 −PSRR 40 10.7 10.6 10.5 10.4 10.3 10.2 20 10.1 0 10 100 1k 10k 100k 10.0 2.7 1M f − Frequency − Hz 3.2 3.7 4.2 4.7 VCC − Supply Voltage − V G013 Figure 13. Figure 14. NOISE vs FREQUENCY 0.01-Hz TO 10-Hz NOISE 5.2 G014 400 nV/div Noise − nV//Hz 1k 100 10 1 10 100 1k 10k 100k t − Time − 10 s/div f − Frequency − Hz G016 G015 Figure 15. Figure 16. Submit Documentation Feedback 7 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 TYPICAL CHARACTERISTICS (continued) At TA = 25°C, VS = +5 V, RL = 10 kΩ connected to VS/2 and VOUT = VS/2 (unless otherwise noted) SAMPLING FREQUENCY vs TEMPERATURE SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE (VS = 2.7 V TO 5 V) 13 50 12 RL = 10 kΩ VS = 2.7 V to 5 V 40 35 Overshoot − % fS − Sampling Frequency − kHz 45 11 10 30 25 20 15 9 10 5 8 −40 −25 −10 5 20 35 50 65 80 0 10 95 110 125 TA − Free-Air Temperature − °C G017 1k G018 Figure 17. Figure 18. SETTLING TIME vs CLOSED-LOOP GAIN COMMON-MODE RANGE vs SUPPLY VOLTAGE 100 4.5 4.0 Unity-gain requires one complete Auto-Zero Cycle − See text. 3.5 Common-Mode Range − V ts − Settling Time − µs 100 Load Capacitance − pF 0.01% 10 0.1% Maximum Common-Mode 3.0 2.5 2.0 1.5 1.0 0.5 Minimum Common-Mode 0.0 1 1 10 100 −0.5 2.7 Gain − V/V G019 Figure 19. 8 3.2 3.7 4.2 Figure 20. Submit Documentation Feedback 4.7 VCC − Supply Voltage − V 5.2 G020 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 APPLICATION INFORMATION The OPA2335 op amp is unity-gain stable and free from unexpected output phase reversal. It uses auto-zeroing techniques to provide low offset voltage and very low drift over time and temperature. Good layout practice mandates use of a 0.1-µF capacitor placed closely across the supply pins. For lowest offset voltage and precision performance, circuit layout and mechanical conditions should be optimized. Avoid temperature gradients that create thermoelectric (Seebeck) effects in thermocouple junctions formed from connecting dissimilar conductors. These thermally-generated potentials can be made to cancel by assuring that they are equal on both input terminals. • Use low thermoelectric-coefficient connections (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. Following these guidelines will reduce the likelihood of junctions being at different temperatures, which can cause thermoelectric voltages of 0.1 µV/°C or higher, depending on materials used. OPERATING VOLTAGE The OPA2335 op amp operates over a power-supply range of 2.7 V to 5.5 V (±1.35 V to ±2.75 V). Supply voltages higher than 7 V (absolute maximum) can permanently damage the amplifier. Parameters that vary over supply voltage or temperature are shown in the Typical Characteristics section of this data sheet. INPUT VOLTAGE The input common-mode range extends from (V–) – 0.1 V to (V+) – 1.5 V. For normal operation, the inputs must be limited to this range. The common-mode rejection ratio is only valid within the valid input common-mode range. A lower supply voltage results in lower input common-mode range; therefore, attention to these values must be given when selecting the input bias voltage. For example, when operating on a single 3-V power supply, common-mode range is from 0.1 V below ground to half the power-supply voltage. Normally, input bias current is approximately 70 pA; however, input voltages exceeding the power supplies can cause excessive current to flow in or out of the input pins. Momentary voltages greater than the power supply can be tolerated if the input current is limited to 10 mA. This is easily accomplished with an input resistor, as shown in Figure 21. Current-limiting resistor required if input voltage exceeds supply rails by ³ 0.5 V. 5V IOVERLOAD 10 mA max OPA335 VOUT VIN 5 kW S0146-01 Figure 21. Input Current Protection INTERNAL OFFSET CORRECTION The OPA2335 op amp uses an auto-zero topology with a time-continuous 2-MHz op amp in the signal path. This amplifier is zero-corrected every 100 µs using a proprietary technique. Upon power-up, the amplifier requires one full auto-zero cycle of approximately 100 µs to achieve specified VOS accuracy. Prior to this time, the amplifier functions properly, but with unspecified offset voltage. This design has remarkably little aliasing and noise. Zero correction occurs at a 10-kHz rate, but there is virtually no fundamental noise energy present at that frequency. For all practical purposes, any glitches have energy at 20 MHz or higher and are easily filtered, if required. Most applications are not sensitive to such high-frequency noise, and no filtering is required. Submit Documentation Feedback 9 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 APPLICATION INFORMATION (continued) Unity-gain operation demands that the auto-zero circuitry correct for common-mode rejection errors of the main amplifier. Because these errors can be larger than 0.01% of a full-scale input step change, one calibration cycle (100 µs) can be required to achieve full accuracy. This behavior is shown in the typical characteristic section, see Settling Time vs Closed-Loop Gain. ACHIEVING OUTPUT SWING TO THE OP AMP’S NEGATIVE RAIL Some applications require output voltage swing from 0 V to a positive full-scale voltage (such as 2.5 V) with excellent accuracy. With most single-supply op amps, problems arise when the output signal approaches 0 V, near the lower output swing limit of a single-supply op amp. A good single-supply op amp may swing close to single-supply ground, but will not reach ground. The output of the OPA2335 can be made to swing to ground, or slightly below, on a single-supply power source. To do so requires use of another resistor and an additional, more negative, power supply than the op amp’s negative supply. A pull-down resistor may be connected between the output and the additional negative supply to pull the output down below the value that the output would otherwise achieve, as shown in Figure 22. V+ = 5 V VOUT OPA335 VIN Op Amp’s V- = Gnd RP = 40 kW -5 V Additional Negative Supply S0147-01 Figure 22. Op Amp With Pull-Down Resistor to Achieve VOUT = Ground The OPA2335 has an output stage that allows the output voltage to be pulled to its negative supply rail, or slightly below using the above technique. This technique only works with some types of output stages. The OPA2335 has been characterized to perform well with this technique. Accuracy is excellent down to 0 V and as low as –2 mV. Limiting and non-linearity occurs below –2 mV, but excellent accuracy returns as the output is again driven above –2 mV. Lowering the resistance of the pull-down resistor allows the op amp to swing even further below the negative rail. Resistances as low as 10 kΩ can be used to achieve excellent accuracy, down to –10 mV. LAYOUT GUIDELINES Attention to good layout practices is always recommended. Keep traces short. When possible, use a PCB ground plane with surface-mount components placed as close to the device pins as possible. Place a 0.1-µF 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 EMI (electromagnetic-interference) susceptibility. 10 Submit Documentation Feedback OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 APPLICATION INFORMATION (continued) 5V 4.096 V REF3040 + 0.1 mF R1 6.04 kW D1 - R2 2.94 kW - R9 150 kW R5 31.6 kW K-Type Thermocouple 40.7 mV/°C R4 6.04 kW R3 60.4 W 0.1 mF + R2 549 W R6 200 W + + 5V VOUT OPA335 Zero Adj. S0148-01 Figure 23. Temperature Measurement Circuit IIN IIN R1 R1 2.5 V 5V Photodiode Photodiode OPA343 1 MW OPA343 -2.5 V C1 1 MW C1 2.5 V 5V R2 C2 -2.5 V R2 (1) OPA335 Optional pull-down resistor to allow below ground output swing. OPA335 (1) 40 kW C2 -5 V a. Split Supply b. Single Supply S0149-01 Figure 24. Auto-Zeroed Transimpedance Amplifier Submit Documentation Feedback 11 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 APPLICATION INFORMATION (continued) VEX = 2.5 V VEX R1 = 105 W Select R1 so bridge output £ VCMmax R1 R R R R 5V 300 W Bridge VOUT OPA335 @ VS = 2.7 V, VCMmax = 1.2 V R2 2.7 V OPA335 VOUT R2 R1 VREF VREF a. 5 V Supply Bridge Amplifier b. 2.7 V Supply Bridge Amplifier S0150-01 Figure 25. Single Op-Amp Bridge Amplifier Circuits VREF R2 R1 R1 R2 5V R R R R G=1+ 1/2 OPA2335 R2 R1 5V 1/2 OPA2335 VOUT (1) R3 40 kW (1) Optional pull-down resistor to allow accurate swing to 0 V. -5 V S0151-01 Figure 26. Dual Op-Amp IA Bridge Amplifier 12 Submit Documentation Feedback OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 APPLICATION INFORMATION (continued) 11.5 kW V 5V fS = 0.63 V 5V Load OPA335 (1) R3 40 kW 50 mV Shunt RS 1 kW G = 12.5 (1) -5 V ADS1100 2 IC (PGA Gain = 8) 5 V fS Pull-down resistor to allow accurate swing to 0 V. S0152-01 Figure 27. Low-Side Current Measurement Submit Documentation Feedback 13 OPA2335M www.ti.com SGLS320 – SEPTEMBER 2006 APPLICATION INFORMATION (continued) R1 4.12 kW C1 56 pF 5V C2 0.1 mF R3 100 W VOUT OPA353 Photodiode = 2 pF (1) R2 C3 1 nF 2 kW -5 V C4 10 nF R7 1 kW 5V Photodiode Bias C7 1 mF C6 0.1 mF R4 100 kW R6 49.9 kW OPA335 (1) R5 40 kW (1) C5 10 nF -5 V Pull-down resistors to allow accurate swing to 0 V. S0153-01 Figure 28. High Dynamic-Range Transimpedance Amplifier 14 Submit Documentation Feedback » 1 MHz Bandwidth VOS » 10 mV MECHANICAL DATA MCER001A – JANUARY 1995 – REVISED JANUARY 1997 JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE 0.400 (10,16) 0.355 (9,00) 8 5 0.280 (7,11) 0.245 (6,22) 1 0.063 (1,60) 0.015 (0,38) 4 0.065 (1,65) 0.045 (1,14) 0.310 (7,87) 0.290 (7,37) 0.020 (0,51) MIN 0.200 (5,08) MAX Seating Plane 0.130 (3,30) MIN 0.023 (0,58) 0.015 (0,38) 0°–15° 0.100 (2,54) 0.014 (0,36) 0.008 (0,20) 4040107/C 08/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a ceramic lid using glass frit. Index point is provided on cap for terminal identification. Falls within MIL STD 1835 GDIP1-T8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Amplifiers Data Converters DSP Clocks and Timers Interface Logic Power Mgmt Microcontrollers RFID RF/IF and ZigBee® Solutions amplifier.ti.com dataconverter.ti.com dsp.ti.com www.ti.com/clocks interface.ti.com logic.ti.com power.ti.com microcontroller.ti.com www.ti-rfid.com www.ti.com/lprf Applications Audio Automotive Broadband Digital Control Medical Military Optical Networking Security Telephony Video & Imaging Wireless www.ti.com/audio www.ti.com/automotive www.ti.com/broadband www.ti.com/digitalcontrol www.ti.com/medical www.ti.com/military www.ti.com/opticalnetwork www.ti.com/security www.ti.com/telephony www.ti.com/video www.ti.com/wireless Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2008, Texas Instruments Incorporated