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LM4992 bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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LM4992 bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 23 page THS770012 www.ti.com SLOS669C – FEBRUARY 2010 – REVISED JANUARY 2012 ELECTRICAL CHARACTERISTICS (continued) Test conditions are at TA = +25°C, VS+ = +5V, VOCM = +2.5V, VOUT = 2VPP, RL = 400Ω differential, G = +12dB, differential input and output, and input and output referenced to midsupply, unless otherwise noted. Measured using evaluation module as discussed in Test Circuits section. TEST PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LEVEL(1) OUTPUT COMMON-MODE VOLTAGE CONTROL VOCM small-signal bandwidth VOUT_CM = 200mVPP 300 MHz C VOCM slew rate VOUT_CM = 500mV step 150 V/ µs C VOCM voltage range Supplied by external source(2) 2.25 2.5 2.75 V C VOCM gain VOCM = 2.5V 0.98 1 1.02 V/V A Output common-mode offset VOCM = 2.5V –30 ±12 30 mV A from VOCM input VOCM input bias current 2.25V ≤ VOCM ≤ 2.75V –400 ±30 400 µA A POWER SUPPLY Specified operating voltage 4.75 5 5.25 V C TA = +25°C 85 100 115 mA A Quiescent current TA = –40°C to +85°C 80 125 mA B TA = +25°C, VS+ = 5V ±0.25V 60 90 dB A Power-supply rejection ratio TA = –40°C to +85°C, VS+ = 5V ±0.5V 59 dB B POWER-DOWN Enable voltage threshold Device powers on below 0.5V 0.5 V A Disable voltage threshold Device powers down above 2.0V 2 V A Power-down quiescent current 0.8 3 mA A Input bias current 80 100 µA A Turn-on time delay Time to VOUT = 90% of final value 10 µs C Turn-off time delay Time to VOUT = 10% of original value 0.15 µs C THERMAL CHARACTERISTICS Specified operating range –40 +85 °C C Thermal resistance, θJC (3) Junction to case (bottom) 8.9 °C/W C Thermal resistance, θJA (3) Junction to ambient 44.1 °C/W C (2) Limits set by best harmonic distortion with VOUT = 3VPP. VOCM voltage range can be extended if lower output swing is used or distortion degradation is allowed, and increased bias current into pin is acceptable. For more information, see Figure 18 and Figure 34. (3) Tested using JEDEC High-K test PCB. Thermal management of the final printed circuit board (PCB) should keep the junction temperature below +125 °C for long term reliability. Copyright © 2010–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): THS770012 |
Số phần tương tự - LM4992_14 |
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Mô tả tương tự - LM4992_14 |
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