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LT1469IDF-2-TRPBF Datasheet(PDF) 1 Page - Linear Technology |
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LT1469IDF-2-TRPBF Datasheet(HTML) 1 Page - Linear Technology |
1 / 12 page LT1469-2 1 14692f TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION Dual 200MHz, 30V/µs 16-Bit Accurate AV ≥ 2 Op Amp The LT®1469-2 is a dual, precision high speed opera- tional amplifier with 16-bit accuracy, decompensated to be stable in a gain of 2 or greater. The combination of precision and AC performance makes the LT1469-2 the optimum choice for high accuracy applications such as DAC current-to-voltage conversion and ADC buffers. The initial accuracy and drift characteristics of the input offset voltage and inverting input bias current are tailored for inverting applications. The 200MHz gain bandwidth ensures high open-loop gain at frequency for reducing distortion. In noninverting ap- plications such as an ADC buffer, the low distortion and DC accuracy allow full 16-bit AC and DC performance. The high slew rate of the LT1469-2 improves large-signal performance in applications such as active filters and instrumentation amplifiers compared to other precision op amps. The LT1469-2 is specified on power supply voltages of ±5V and ±15V and from –40°C to 85°C. It is available in an 8-lead SOIC package and a space saving 4mm × 4mm leadless package. For a unity-gain stable op amp with same DC performance, see the LT1469 datasheet. n Stable in Gain AV ≥ 2 (AV = –1) n 200MHz Gain Bandwidth Product n 30V/μs Slew Rate n Settling Time: 800ns (150μV, 10V Step) n Specified at ±5V and ±15V Supplies n Maximum Input Offset Voltage: 125μV n Low Distortion: –96.5dB for 100kHz, 10VP-P n Maximum Input Offset Voltage Drift: 3μV/°C n Maximum Inverting Input Bias Current: 10nA n Minimum DC Gain: 300V/mV n Minimum Output Swing into 2k: ±12.8V n Input Noise Voltage: 5nV/√Hz n Input Noise Current: 0.6pA/√Hz n Total Input Noise Optimized for 1kΩ < RS < 20kΩ n Available in 8-Lead Plastic SO and 12-Lead (4mm × 4mm) DFN Packages n Precision Instrumentation n High Accuracy Data Acquisition Systems n 16-Bit DAC Current-to-Voltage Converter n ADC Buffer n Low Distortion Active Filters n Photodiode Amplifiers L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 16-Bit DAC I-to-V Converter Large-Signal Transient, AV = –1 20pF 6k LTC ®1597 1/2 LT1469-2 16 DAC INPUTS + – OFFSET: VOS + IB (6kΩ) < 1LSB SETTLING TIME TO 150μV = 1.6μs SETTLING LIMITED BY 6k AND 20pF TO COMPENSATE DAC OUTPUT CAPACITANCE VOUT 2k 50pF OPTIONAL NOISE FILTER 14692 TA01a 200ns/DIV 10V 14692 TA02 0V VS = ±15V AV = –1 RF = RG = 2k CF = 22pF 2V/DIV |
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