INA2128P

INA ® INA2128 212 INA 8 212 8 Dual, Low Power INSTRUMENTATION AMPLIFIER FEATURES DESCRIPTION ● LOW OFFSET VOLTAGE: 50µV max The INA2128 is a dual, low power, general purpose instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100). ● LOW DRIFT: 0.5µV/°C max ● LOW INPUT BIAS CURRENT: 5nA max ● HIGH CMR: 120dB min ● INPUTS PROTECTED TO ±40V ● WIDE SUPPLY RANGE: ±2.25V to ±18V A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage. ● LOW QUIESCENT CURRENT: 700µA / IA ● 16-PIN PLASTIC DIP, SOL-16 The INA2128 is laser trimmed for very low offset voltage (50µV), drift (0.5µV/°C) and high commonmode rejection (120dB at G ≥ 100). It operates with power supplies as low as ±2.25V, and quiescent current is only 700µA per IA—ideal for battery operated and multiple-channel systems. APPLICATIONS ● SENSOR AMPLIFIER THERMOCOUPLE, RTD, BRIDGE ● MEDICAL INSTRUMENTATION ● MULTIPLE-CHANNEL SYSTEMS The INA2128 is available in 16-pin plastic DIP, and SOL-16 surface-mount packages, specified for the –40°C to +85°C temperature range. ● BATTERY OPERATED EQUIPMENT V+ 9 – VINA 1 Over-Voltage Protection INA2128 7 A1A 40kΩ 3 40kΩ 25kΩ A3A RGA 4 2 Over-Voltage Protection – 16 Over-Voltage Protection VINB 14 5 A2A 40kΩ 40kΩ 40kΩ 40kΩ 13 15 GB = 1 + 25kΩ A3B + RefA 10 A1B RGB VINB VOA 25kΩ + VINA 6 GA = 1 + 50kΩ RGA 11 50kΩ RGB VOB 25kΩ Over-Voltage Protection 12 A2B 40kΩ RefB 40kΩ 8 V– International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111 Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1994 Burr-Brown Corporation SBOS035 PDS-1243C Printed in U.S.A. January, 1996 SPECIFICATIONS At TA = +25°C, VS = ±15V, RL = 10kΩ, unless otherwise noted. INA2128P, U PARAMETER CONDITIONS INPUT Offset Voltage, RTI Initial TA = +25°C vs Temperature TA = TMIN to TMAX vs Power Supply VS = ±2.25V to ±18V Long-Term Stability Impedance, Differential Common-Mode VO = 0V Common-Mode Voltage Range(1) Safe Input Voltage Common-Mode Rejection VCM = ±13V, ∆RS = 1kΩ G=1 G=10 G=100 G=1000 TYP MAX ±50 ±500/G ±0.5 ± 20/G ±1 ±100/G (V+) – 2 (V–) + 2 ±10 ±100/G ±0.2 ± 2/G ±0.2 ±20/G ±0.1 ±3/G 1010 || 2 1011 || 9 (V+) – 1.4 (V–) + 1.7 80 100 120 120 86 106 125 130 ±2 ±30 ±1 ±30 BIAS CURRENT vs Temperature Offset Current vs Temperature NOISE VOLTAGE, RTI f = 10Hz f = 100Hz f = 1kHz fB = 0.1Hz to 10Hz Noise Current f=10Hz f=1kHz fB = 0.1Hz to 10Hz INA2128PA, UA MIN ✻ ✻ ±40 73 93 110 110 ±5 ±5 G=1 G=10 G=100 G=1000 G=1 VO = ±13.6V, G=1 G=10 G=100 G=1000 OUTPUT Voltage: Positive Negative Load Capacitance Stability Short-Circuit Current RL = 10kΩ RL = 10kΩ (V+) – 1.4 (V–) + 1.4 MAX ±25 ±100/G ±125 ±1000/G ±0.2 ± 5/G ±1 ± 20/G ✻ ±2 ±200/G ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ UNITS µV µV/°C µV/V µV/mo Ω || pF Ω || pF V V V dB dB dB dB ±10 ±10 nA pA/°C nA pA/°C 10 8 8 0.2 ✻ ✻ ✻ ✻ nV/√Hz nV/√Hz nV/√Hz µVp-p 0.9 0.3 30 ✻ ✻ ✻ pA/√Hz pA/√Hz pAp-p ✻ 1 + (50kΩ/RG) 1 TYP ✻ ✻ ✻ ✻ G = 1000, RS = 0Ω GAIN Gain Equation Range of Gain Gain Error Gain vs Temperature(2) 50kΩ Resistance(2, 3) Nonlinearity MIN ±0.01 ±0.02 ±0.05 ±0.5 ±1 ±25 ±0.0001 ±0.0003 ±0.0005 ±0.001 10000 ±0.024 ±0.4 ±0.5 ±1 ±10 ±100 ±0.001 ±0.002 ±0.002 (Note 4) ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ (V+) – 0.9 (V–) + 0.8 1000 +6/–15 ✻ ±0.1 ±0.5 ±0.7 ±2 ✻ ✻ ±0.002 ±0.004 ±0.004 ✻ V/V V/V % % % % ppm/°C ppm/°C % of FSR % of FSR % of FSR % of FSR ✻ ✻ ✻ ✻ V V pF mA ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ ✻ MHz kHz kHz kHz V/µs µs µs µs µs µs FREQUENCY RESPONSE Bandwidth, –3dB Overload Recovery G=1 G=10 G=100 G=1000 VO = ±10V, G=10 G=1 G=10 G=100 G=1000 50% Overdrive POWER SUPPLY Voltage Range Current, Total VIN = 0V Slew Rate Settling Time, 0.01% 1.3 700 200 20 4 7 7 9 80 4 ±2.25 TEMPERATURE RANGE Specification Operating θJA ±15 ±1.4 –40 –40 80 ±18 ±1.5 ✻ 85 125 ✻ ✻ ✻ ✻ ✻ ✻ ✻ V mA ✻ ✻ °C °C °C/W ✻ Specification same as INA2128P, U. NOTE: (1) Input common-mode range varies with output voltage—see typical curves. (2) Guaranteed by wafer test. (3) Temperature coefficient of the “50kΩ” term in the gain equation. (4) Nonlinearity measurements in G = 1000 are dominated by noise. Typical nonlinearity is ±0.001%. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. ® INA2128 2 ELECTROSTATIC DISCHARGE SENSITIVITY PIN CONFIGURATION Top View DIP SOL-16 – VINA 1 – 16 VINB + VINA 2 + 15 VINB RGA 3 14 RGB RGA 4 13 RGB RefA 5 12 RefB VOA 6 11 VOB SenseA 7 10 SenseB V– 8 9 This integrated circuit can be damaged by ESD. Burr-Brown 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. V+ ORDERING INFORMATION ABSOLUTE MAXIMUM RATINGS Supply Voltage .................................................................................. ±18V Analog Input Voltage Range ............................................................. ±40V Output Short-Circuit (to ground) .............................................. Continuous Operating Temperature ................................................. –40°C to +125°C Storage Temperature ..................................................... –40°C to +125°C Junction Temperature .................................................................... +150°C Lead Temperature (soldering, 10s) ............................................... +300°C PRODUCT PACKAGE PACKAGE DRAWING NUMBER(1) INA2128PA INA2128P INA2128UA INA2128U 16-Pin Plastic DIP 16-Pin Plastic DIP SOL-16 Surface-Mount SOL-16 Surface-Mount 180 180 211 211 TEMPERATURE RANGE –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. ® 3 INA2128 TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = ±15V, unless otherwise noted. COMMON-MODE REJECTION vs FREQUENCY GAIN vs FREQUENCY 140 60 G = 1000V/V G = 100V/V G = 1000V/V Common-Mode Rejection (dB) 50 40 Gain (dB) G = 100V/V 30 20 G = 10V/V 10 0 G = 1V/V –10 1k 10k 100k 1M G = 1V/V 80 60 40 20 10 10M 100 1k 100k 10k Frequency (Hz) Frequency (Hz) POSITIVE POWER SUPPLY REJECTION vs FREQUENCY NEGATIVE POWER SUPPLY REJECTION vs FREQUENCY 140 120 120 Power Supply Rejection (dB) 140 G = 1000V/V 100 G = 100V/V 80 60 G = 10V/V 40 G = 1V/V 1M G = 1000V/V G = 100V/V 100 80 60 40 G = 10V/V 20 20 0 0 G = 1V/V 10 15 100 1k 10k 100k 10 1M 100k INPUT COMMON-MODE RANGE vs OUTPUT VOLTAGE, VS = ±5, ±2.5V G=1 G=1 VD/2 VD/2 + +15V – VO + – Ref + VCM –15V –10 3 2 G=1 0 5 10 1 0 G=1 –1 –2 –3 –5 –5 15 Output Voltage (V) VS = ±5V VS = ±2.5V –4 –3 –2 –1 0 1 Output Voltage (V) ® INA2128 G=1 G ≥ 10 –4 –5 G ≥ 10 G ≥ 10 4 5 0 1M 5 G ≥ 10 –10 10k INPUT COMMON-MODE RANGE vs OUTPUT VOLTAGE, VS = ±15V 10 –15 –15 1k Frequency (Hz) G ≥ 10 –5 100 Frequency (Hz) Common-Mode Voltage (V) Power Supply Rejection (dB) G = 10V/V 100 0 –20 Common-Mode Voltage (V) 120 4 2 3 4 5 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, unless otherwise noted. CROSSTALK vs FREQUENCY INPUT- REFERRED NOISE vs FREQUENCY 120 G = 10V/V Crosstalk (dB) 100 G = 1V/V G = 1000V/V 80 G = 100V/V 60 40 20 0 G = 1V/V 10 100 G = 10V/V 1 10 G = 100, 1000V/V Current Noise 0.1 1 10 100 1k 100k 10k 1M 1 10 QUIESCENT CURRENT and SLEW RATE vs TEMPERATURE Quiescent Current (µA) 0.1% 1.7 6 1.6 5 1.5 1 1.4 3 IQ 1.3 2 10 100 –75 1000 –50 –25 Gain (V/V) INPUT OVER-VOLTAGE V/I CHARACTERISTICS 8 Input Current (mA) Flat region represents normal linear operation. Offset Voltage Change (µV) 4 G = 1000V/V 1 G = 1V/V 0 +15V G = 1V/V 1/2 INA2128 –2 –3 VIN 25 50 75 100 IIN 6 4 2 0 –2 –4 –6 –8 –15V –5 –10 –50 –40 –30 –20 –10 0 10 1 125 OFFSET VOLTAGE WARM-UP 10 G = 1000V/V 0 Temperature (°C) 5 –4 4 Slew Rate 1.2 1 –1 10k SETTLING TIME vs GAIN 10 2 1k Frequency (Hz) 0.01% 3 100 Frequency (Hz) 100 Settling Time (µs) 100 Input Bias Current Noise (pA/√ Hz) G = 100V/V 1k Slew Rate (V/µs) G = 1000V/V Input-Referred Voltage Noise (nV/√ Hz) 140 20 30 40 50 0 Input Voltage (V) 10 20 30 40 50 Time (ms) ® 5 INA2128 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, unless otherwise noted. OUTPUT VOLTAGE SWING vs OUTPUT CURRENT INPUT BIAS CURRENT vs TEMPERATURE (V+) 2 1 Output Voltage (V) Input Bias Current (nA) (V+)–0.4 IB IOS 0 Typical IB and IOS Range ±2nA at 25°C –1 (V+)–0.8 (V+)–1.2 (V+)+1.2 (V–)+0.8 (V–)+0.4 –2 V– –50 –25 0 25 50 75 100 0 125 4 SHORT-CIRCUIT OUTPUT CURRENT vs TEMPERATURE Short Circuit Current (mA) 14 +25°C +85°C (V+)–0.8 –40°C RL = 10kΩ (V–)+1.2 +25°C –40°C (V–)+0.4 3 OUTPUT VOLTAGE SWING vs POWER SUPPLY VOLTAGE (V+)–0.4 (V–)+0.8 2 Output Current (mA) 16 (V+)–1.2 1 Temperature (°C) V+ +85°C –40°C +85°C –ISC 12 10 8 6 4 +ISC 2 V– 0 0 5 10 15 20 –75 –25 0 25 50 75 100 Temperature (°C) MAXIMUM OUTPUT VOLTAGE vs FREQUENCY TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 125 1 G = 10, 100 25 –50 Power Supply Voltage (V) 30 VO = 1Vrms 500kHz Measurement Bandwidth G=1 G=1 RL = 10kΩ G = 1000 20 THD+N (%) Peak-to-Peak Output Voltage (Vpp) Output Voltage Swing (V) –75 15 10 0.1 G = 100, RL = 100kΩ 0.01 G = 1, RL = 100kΩ 5 Dashed Portion is noise limited. 0 1k 10k 100k 0.001 100 1M Frequency (Hz) 10k Frequency (Hz) ® INA2128 1k 6 G = 10V/V RL = 100kΩ 100k TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, unless otherwise noted. SMALL-SIGNAL STEP RESPONSE (G = 1, 10) SMALL-SIGNAL STEP RESPONSE (G = 100, 1000) G=1 G = 100 20mV/div 20mV/div G = 10 G = 1000 5µs/div 20µs/div LARGE-SIGNAL STEP RESPONSE (G = 1, 10) LARGE-SIGNAL STEP RESPONSE (G = 100, 1000) G=1 G = 100 5V/div 5V/div G = 10 G = 1000 5µs/div 5µs/div VOLTAGE NOISE 0.1 to 10Hz INPUT-REFERRED, G ≥ 100 0.1µV/div 1s/div ® 7 INA2128 APPLICATION INFORMATION Figure 1 shows the basic connections required for operation of the INA2128. Applications with noisy or high impedance power supplies may require decoupling capacitors close to the device pins as shown. internal feedback resistors of A1 and A2. These on-chip metal film resistors are laser trimmed to accurate absolute values. The accuracy and temperature coefficient of these resistors are included in the gain accuracy and drift specifications of the INA2128. The output is referred to the output reference (Ref) terminals (RefA and RefB) which are normally grounded. These must be low-impedance connections to assure good commonmode rejection. A resistance of 8Ω in series with a Ref pin will cause a typical device to degrade to approximately 80dB CMR (G = 1). The stability and temperature drift of the external gain setting resistor, RG, also affects gain. RG’s contribution to gain accuracy and drift can be directly inferred from the gain equation (1). Low resistor values required for high gain can make wiring resistance important. Sockets add to the wiring resistance which will contribute additional gain error in gains of approximately 100 or greater. The INA2128 has a separate output sense feedback connections SenseA and SenseB. These must be connected to their respective output terminals for proper operation. The output sense connection can be used to sense the output voltage directly at the load for best accuracy. DYNAMIC PERFORMANCE The typical performance curve “Gain vs Frequency” shows that despite its low quiescent current, the INA2128 achieves wide bandwidth, even at high gain. This is due to its currentfeedback topology. Settling time also remains excellent at high gain—see “Settling Time vs Gain.” SETTING THE GAIN Gain of the INA2128 is set by connecting a single external resistor, RG, connected as shown: G = 1+ 50kΩ RG NOISE PERFORMANCE (1) The INA2128 provides very low noise in most applications. Low frequency noise is approximately 0.2µVp-p measured from 0.1 to 10Hz (G ≥ 100). This provides dramatically improved noise when compared to state-of-the-art chopperstabilized amplifiers. Commonly used gains and resistor values are shown in Figure 1. The 50kΩ term in equation 1 comes from the sum of the two V+ 0.1µF Pin numbers for Channel B shown in parenthesis. – VIN 1 (16) 9 INA2128 Over-Voltage Protection 40kΩ 3 RG (Ω) 1 2 5 10 20 50 100 200 500 1000 2000 5000 10000 NC 50.00k 12.50k 5.556k 2.632k 1.02k 505.1 251.3 100.2 50.05 25.01 10.00 5.001 NC 49.9k 12.4k 5.62k 2.61k 1.02k 511 249 100 49.9 24.9 10 4.99 6 (11) A3 + 4 25kΩ Load VO (13) + VIN 2 (15) – Ref A2 Over-Voltage Protection 40kΩ 8 40kΩ 5 (12) 0.1µF V– Also drawn in simplified form: – VIN NC: No Connection. RG INA2128 Ref + VIN FIGURE 1. Basic Connections. ® INA2128 G=1+ RG NEAREST 1% RG (Ω) 40kΩ 25kΩ (14) DESIRED GAIN 7 Sense + – (10) ) VO = G • (VIN – VIN A1 8 VO NOTE: If channel is unused, connect inputs to ground, sense to VO, and leave Ref open-circuit. 50kΩ RG OFFSET TRIMMING The INA2128 is laser trimmed for low offset voltage and offset voltage drift. Most applications require no external offset adjustment. Figure 2 shows an optional circuit for trimming the output offset voltage. The voltage applied to Ref terminal is summed with the output. The op amp buffer provides low impedance at the Ref terminal to preserve good common-mode rejection. Microphone, Hydrophone etc. 1/2 INA2128 47kΩ 47kΩ 1/2 INA2128 Thermocouple – VIN RG + VIN V+ 1/2 INA2128 10kΩ VO 100µA 1/2 REF200 Ref OPA177 10kΩ 100Ω (For other channel) 1/2 INA2128 ±10mV Adjustment Range 100Ω Center-tap provides bias current return. 100µA 1/2 REF200 FIGURE 3. Providing an Input Common-Mode Current Path. V– INPUT BIAS CURRENT RETURN PATH voltage swing of amplifiers A1 and A2. So the linear common-mode input range is related to the output voltage of the complete amplifier. This behavior also depends on supply voltage—see performance curves “Input Common-Mode Range vs Output Voltage.” The input impedance of the INA2128 is extremely high— approximately 1010Ω. However, a path must be provided for the input bias current of both inputs. This input bias current is approximately ±2nA. High input impedance means that this input bias current changes very little with varying input voltage. Input-overload can produce an output voltage that appears normal. For example, if an input overload condition drives both input amplifiers to their positive output swing limit, the difference voltage measured by the output amplifier will be near zero. The output of the INA2128 will be near 0V even though both inputs are overloaded. FIGURE 2. Optional Trimming of Output Offset Voltage. Input circuitry must provide a path for this input bias current for proper operation. Figure 3 shows various provisions for an input bias current path. Without a bias current path, the inputs will float to a potential which exceeds the commonmode range of the INA2128 and the input amplifiers will saturate. LOW VOLTAGE OPERATION The INA2128 can be operated on power supplies as low as ±2.25V. Performance remains excellent with power supplies ranging from ±2.25V to ±18V. Most parameters vary only slightly throughout this supply voltage range—see typical performance curves. Operation at very low supply voltage requires careful attention to assure that the input voltages remain within their linear range. Voltage swing requirements of internal nodes limit the input commonmode range with low power supply voltage. Typical performance curves, “Input Common-Mode Range vs Output Voltage” show the range of linear operation for ±15V, ±5V, and ±2.5V supplies. If the differential source resistance is low, the bias current return path can be connected to one input (see the thermocouple example in Figure 3). With higher source impedance, using two equal resistors provides a balanced input with possible advantages of lower input offset voltage due to bias current and better high-frequency common-mode rejection. INPUT COMMON-MODE RANGE The linear input voltage range of the input circuitry of the INA2128 is from approximately 1.4V below the positive supply voltage to 1.7V above the negative supply. As a differential input voltage causes the output voltage increase, however, the linear input range will be limited by the output ® 9 INA2128 INPUT PROTECTION The inputs of the INA2128 are individually protected for voltages up to ±40V. For example, a condition of –40V on one input and +40V on the other input will not cause damage. Internal circuitry on each input provides low series impedance under normal signal conditions. To provide equivalent protection, series input resistors would contribute excessive noise. If the input is overloaded, the protection circuitry limits the input current to a safe value of approximately 1.5 to 5mA. The typical performance curve “Input Bias Current vs Common-Mode Input Voltage” shows this input current limit behavior. The inputs are protected even if the power supplies are disconnected or turned off. CHANNEL CROSSTALK The two channels of the INA2128 are completely independent, including all bias circuitry. At DC and low frequency there is virtually no signal coupling between channels. Crosstalk increases with frequency and is dependent on circuit gain, source impedance and signal characteristics. As source impedance increases, careful circuit layout will help achieve lowest channel crosstalk. Most crossstalk is produced by capacitive coupling of signals from one channel to the input section of the other channel. To minimize coupling, separate the input traces as far as practical from any signals associated with the opposite channel. A grounded guard trace surrounding the inputs helps reduce stray coupling between channels. Run the differential inputs of each channel parallel to each other or directly adjacent on top and bottom side of a circuit board. Stray coupling then tends to produce a common-mode signal which is rejected by the IA’s input. VEX X-axis X-axis VO 1/2 INA2128 V1 VO = GA (V2 – V1) + GB (V4 – V3) 1/2 INA2128 RGA VEX Ref V2 V3 Y-axis Y-axis VO 1/2 INA2128 1/2 INA2128 RGB Ref V4 FIGURE 5. Sum of Differences Amplifier. FIGURE 4. Two-Axis Bridge Amplifier. RG = 5.6kΩ 2.8kΩ LA RA RG/2 1/2 INA2128 VO Ref 2.8kΩ 390kΩ 1/2 OPA2604 RL VG 1/2 OPA2604 10kΩ 390kΩ FIGURE 6. ECG Amplifier With Right-Leg Drive. ® INA2128 10 G = 10 VG NOTE: Due to the INA2128’s current-feedback topology, VG is approximately 0.7V less than the common-mode input voltage. This DC offset in this guard potential is satisfactory for many guarding applications. PACKAGE OPTION ADDENDUM www.ti.com 12-Jan-2007 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty INA2128U ACTIVE SOIC DW 16 48 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2128U/1K ACTIVE SOIC DW 16 1000 Pb-Free (RoHS) CU NIPDAU Level-3-260C-168 HR INA2128U/1KE4 ACTIVE SOIC DW 16 1000 Pb-Free (RoHS) CU NIPDAU Level-3-260C-168 HR INA2128UA ACTIVE SOIC DW 16 48 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2128UA/1K ACTIVE SOIC DW 16 1000 Pb-Free (RoHS) CU NIPDAU Level-3-260C-168 HR INA2128UAG4 ACTIVE SOIC DW 16 48 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2128UG4 ACTIVE SOIC DW 16 48 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR 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. 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