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LT1881AIN8 Datasheet(PDF) 6 Page - Linear Technology |
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LT1881AIN8 Datasheet(HTML) 6 Page - Linear Technology |
6 / 16 page LT1881/LT1882 6 18812fa Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The inputs are protected by internal resistors and back-to-back diodes. If the differential input voltage exceeds ±0.7V, the input current should be limited externally to less than 10mA. Note 3: A heat sink may be required to keep the junction temperature below absolute maximum. Note 4: The LT1881C, LT1882C, LT1881I and LT1882I are guaranteed functional over the operating temperature range of – 40 °C to 85°C. Note 5: The LT1881C and LT1882C are designed, characterized and expected to meet specified performance from – 40 °C to 85°C but are not tested or QA sampled at these temperatures. The LT1881I and LT1882I are guaranteed to meet specified performance from – 40 °C to 85°C. Note 6: This parameter is not 100% tested. Note 7: Matching parameters are the difference between amplifiers A and B in the LT1881; and between amplifiers A and D and B and C in the LT1882. Note 8: This parameter is the difference between the two noninverting input bias currents. Note 9: ΔCMRR and ΔPSRR are defined as follows: CMRR and PSRR are measured in μV/V on each amplifier. The difference is calculated in μV/V and then converted to dB. Note 10: Full power bandwidth is calculated from the slew rate: FPBW = SR/2 πVP. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25 °C. Split supply operation VS = ±15V, VCM = 0V unless otherwise noted. (Note 5) SR – Slew Rate Negative AV = – 1 0.13 0.20 V/ μs ● 0.1 V/ μs FPBW Full-Power Bandwidth VOUT = 28VP-P 1.47 2.25 kHz (Note 10) ● 1.13 kHz ΔVOS Offset Voltage Match (LT1881/LT1882) (Note 5) 42 125 μV 0 °C < TA < 70°C ● 175 μV –40 °C < TA < 85°C ● 235 μV Offset Voltage Match (LT1881A) 35 70 μV 0 °C < TA < 70°C ● 125 μV –40 °C < TA < 85°C ● 160 μV Offset Voltage Match Drift (Notes 6, 7) ● 0.4 1.1 μV/°C ΔIB+ Noninverting Bias Current Match (Notes 7, 8) 240 700 pA (LT1881/LT1882) 0 °C < TA < 70°C ● 900 pA –40 °C < TA < 85°C ● 1000 pA Noninverting Bias Current Match 200 300 pA (LT1881A) 0 °C < TA < 70°C ● 400 pA –40 °C < TA < 85°C ● 500 pA ΔCMRR Common Mode Rejection Match (Notes 7, 9) ● 110 125 dB Δ+PSRR Positive Power Supply Rejection Match V– = – 15V, VCM = 0V, ● 108 130 dB 1.5V < V+ < 18V, (Notes 7, 9) Δ–PSRR Negative Power Supply Rejection Match V+ = 15V, VCM = 0V, ● 104 130 dB – 1.5V < V– < – 18V, (Notes 7, 9) |
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