LT1499 LINER [Linear Technology], LT1499 Datasheet
LT1499
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LT1499 Summary of contents
Page 1
... The LT1498/LT1499 are designed to maximize input dynamic range by delivering precision performance over the full supply voltage. Using a patented technique, both input stages of the LT1498/LT1499 are trimmed, one at the negative supply and the other at the positive supply. The resulting guaranteed common mode rejection is much better than other rail-to-rail input op amps ...
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... 75mV to 4.8V 3V 75mV to 2.8V ORDER PART TOP VIEW NUMBER 14 OUT D 13 – LT1499CS – – OUT C S PACKAGE = 150 C, = 150 MIN TYP MAX ...
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... – 5V 0. – 3V 0. 2.3V to 12V 0. 2.3V to 12V 0. LT1498/LT1499 MIN TYP MAX 105 82 103 200 2 100 140 250 12.5 24 12.0 19 1.7 2.2 6.8 10 ...
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... LT1498/LT1499 ELECTRICAL CHARACTERISTICS 0 C < T < 5V, 0V 3V, 0V SYMBOL PARAMETER V Output Voltage Swing (Low) (Note Output Voltage Swing (High) (Note Short-Circuit Current SC I Supply Current per Amplifier S GBW Gain-Bandwidth Product (Note 6) SR Slew Rate (Note 7) – < T < ...
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... 15V 15V S No Load I = 0.5mA SINK I = 10mA SINK No Load I = 0.5mA SINK I = 10mA SINK A = – Open 10V Measure LT1498/LT1499 MIN TYP MAX UNITS 7 7 2.0 2.7 mA 5.8 8.5 MHz 2.2 3 1.9 3 MIN TYP MAX UNITS 200 800 V 200 ...
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... LT1498/LT1499 ELECTRICAL CHARACTERISTICS 0 C < T < 15V 0V SYMBOL PARAMETER V Input Offset Voltage Input Offset Voltage Drift (Note Input Offset Voltage Shift OS Input Offset Voltage Match (Channel-to-Channel Input Bias Current B I Input Bias Current Shift ...
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... L O Measure Note 4: Matching parameters are the difference between amplifiers A and D and between B and C on the LT1499; between the two amplifiers on the LT1498. Note 5: Output voltage swings are measured between the output and power supply rails. Note 3V tests ...
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... 0.001 0.01 0 LOAD CURRENT (mA) 1498/99 G08 V Shift for LT1498: N8, S8 PACKAGES LT1499: S14 PACKAGE – 500 –300 –100 100 300 500 INPUT OFFSET VOLTAGE ( V) 1498/99 G02 Input Bias Current ...
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... Gain Bandwidth and Phase Margin vs Supply Voltage PHASE MARGIN 12 10 GAIN BANDWIDTH TOTAL SUPPLY VOLTAGE (V) 1498/99 G17 LT1498/LT1499 Noise Voltage Spectrum 200 180 160 140 120 V = 2.5V 100 CM PNP ACTIVE NPN ACTIVE 40 20 ...
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... SETTLING TIME ( s) Warm-Up Drift vs Time 10 S8 PACKAGE 2. PACKAGE 2.5V S –10 LT1499CS 2. PACKAGE 15V S –20 N8 PACKAGE –30 LT1499CS 15V S – 100 120 140 TIME AFTER POWER-UP (SEC) P – 100 FREQUENCY (kHz) 1498/99 G26 3 ...
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... U APPLICATIONS INFORMATION Rail-to-Rail Input and Output The LT1498/LT1499 are fully functional for an input and output signal range from the negative supply to the posi- tive supply. Figure 1 shows a simplified schematic of the amplifier. The input stage consists of two differential amplifiers, a PNP stage (Q1/Q2) and an NPN stage (Q3/ Q4) which are active over different ranges of input com- mon mode voltage ...
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... Worst-case differential input voltage usually occurs when the output is shorted to ground. In addition, the amplifier is protected against ESD strikes up to 3kV on all pins. Capacitive Load The LT1498/LT1499 are designed for ease of use. The amplifier can drive a capacitive load of more than 10nF ...
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... For instance, the LT1498/LT1499 in a noninvert- ing gain of 2, set with two 30k resistors, will probably oscillate with 10pF total input capacitance (5pF input capacitance + 5pF board capacitance) ...
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... LT1498/LT1499 U TYPICAL APPLICATIONS PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.025 0.325 –0.015 +0.635 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) ...
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... TYP 0.014 – 0.019 (0.355 – 0.483) LT1498/LT1499 0.189 – 0.197* (4.801 – 5.004 0.150 – 0.157** (3.810 – 3.988 0.004 – 0.010 (0.101 – ...
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... LT1498/LT1499 U TYPICAL APPLICATION Bidirectional Current Sensor A bidirectional current sensor for battery-powered sys- tems is shown in Figure 3. Two outputs are provided: one proportional to charge current, the other proportional to discharge current. The circuit takes advantage of the LT1498’s rail-to-rail input range and its output phase reversal protection ...