LTC6404 Linear Technology, LTC6404 Datasheet
LTC6404
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LTC6404 Summary of contents
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... It draws only 27.3mA, and has a hardware shutdown feature which reduces cur- rent consumption to 250μA. The LTC6404 family is available in a compact 3mm × 3mm 16-pin leadless QFN package and operates over a –40°C to 125°C temperature range. ...
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... LTC6404CUD-2#PBF LTC6404CUD-2#TRPBF LTC6404IUD-2#PBF LTC6404IUD-2#TRPBF LTC6404HUD-2#PBF LTC6404HUD-2#TRPBF LTC6404CUD-4#PBF LTC6404CUD-4#TRPBF LTC6404IUD-4#PBF LTC6404IUD-4#TRPBF LTC6404HUD-4#PBF LTC6404HUD-4#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...
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... LTC6404 DC ELECTRICAL CHARACTERISTICS the full operating temperature range, otherwise specifi cations are OPEN OPEN 100k (See Figure 1). For the LTC6404-1: R SHDN L BAL R = 200Ω. For the LTC6404- 100Ω – defi ned ( )/2. V ICM IN IN ...
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... LTC6404 www.DataSheet4U.com LTC6404 DC ELECTRICAL CHARACTERISTICS the full operating temperature range, otherwise specifi cations are OPEN OPEN 100k (See Figure 1). For the LTC6404-1: R SHDN L BAL R = 200Ω. For the LTC6404- 100Ω – defi ned ( )/2. V ICM ...
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... LTC6404 DC ELECTRICAL CHARACTERISTICS the full operating temperature range, otherwise specifi cations are OPEN OPEN 100k (See Figure 1). For the LTC6404-1: R SHDN L BAL R = 200Ω. For the LTC6404- 100Ω – defi ned ( )/2. V ICM IN IN ...
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... OIP3 at 10MHz (Note 12) 10M t Settling Time S 2V Step at Output NF Noise Figure 50Ω Differential Filter 3dB Bandwidth (Note 13) 3dBFILTER LTC6404-4 AC ELECTRICAL CHARACTERISTICS over the full operating temperature range, otherwise specifi cations are OPEN 100Ω 402Ω, R SHDN – )/2 ...
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... ADC. Therefore, typical output power is very small. In order to compare the LTC6404 with amplifi ers that require 50Ω output loads, output swing of the LTC6404 driving an ADC is converted into an “effective” OIP3 as if the LTC6404 were driving a 50Ω load. ) has not Note 13: The capacitors used to set the fi ...
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... LTC6404 www.DataSheet4U.com LTC6404-1 TYPICAL PERFORMANCE CHARACTERISTICS Active Supply Current vs Temperature MID-SUPPLY CM OCM 2. –75 –50 – 100 125 25 TEMPERATURE (°C) Common Mode Voltage Offset vs Temperature 10 5 REPRESENTATIVE UNITS MID-SUPPLY CM OCM ...
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... LTC6404-1 TYPICAL PERFORMANCE CHARACTERISTICS Small-Signal Frequency Response vs Gain Setting Resistor Values and Supply Voltage 100Ω – 200Ω – 499Ω – –20 UNFILTERED OUTPUTS MID-SUPPLY CM OCM – 25° ...
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... POINT FFT FUNDAMENTAL = –1dBFS –60 HD2 = –90.7dBc HD3 = –86.6dBc –80 HD2 HD5 –100 HD8 HD9 HD4 –120 FREQUENCY (MHz) 64041 G20 LTC6404-1 Noise Figure vs Frequency MID-SUPPLY CM OCM 25°C A SEE FIGURE 2 CIRCUIT ...
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... LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS Active Supply Current vs Temperature MID-SUPPLY CM OCM 2. –75 –50 – 100 125 TEMPERATURE (°C) Common Mode Voltage Offset (Input Referred) vs Temperature 10 5 REPRESENTATIVE UNITS MID-SUPPLY CM OCM ...
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... LTC6404 LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS Small-Signal Frequency Response vs Gain Setting Resistor Values 100Ω 200Ω 200Ω 402Ω 499Ω – –10 ...
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... LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Output Amplitude – MID-SUPPLY CM OCM – 100Ω 200Ω SINGLE-ENDED INPUT IN – 10MHz IN –70 –80 –90 HD2 –100 –110 HD3 –120 OUTDIFF P-P Voltage Noise Density vs Frequency 100 ...
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... LTC6404 www.DataSheet4U.com LTC6404-4 TYPICAL PERFORMANCE CHARACTERISTICS Active Supply Current vs Temperature MID-SUPPLY CM OCM 2. 100 125 –75 –50 – TEMPERATURE (°C) Common Mode Voltage Offset (Input Referred) vs Temperature 50 5 REPRESENTATIVE UNITS MID-SUPPLY CM OCM ...
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... LTC6404-4 TYPICAL PERFORMANCE CHARACTERISTICS Small-Signal Frequency Response vs Gain Setting Resistor Values 100Ω 140Ω 562Ω 200Ω 800Ω – – MID-SUPPLY CM OCM AND –15 ...
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... FREQUENCY (MHz) PIN FUNCTIONS SHDN (Pin 1): When SHDN is fl oating or directly tied the LTC6404 is in the normal (active) operating mode. When Pin 1 is pulled a minimum of 2.1V below V LTC6404 enters into a low power shutdown state. See Applications Information for more details. + – ...
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... PIN FUNCTIONS potential. On the LTC6404-2, the V resistance of approximately 14k. On the LTC6404-4, the V pin has a input resistance of approximately 7k. The OCM V pin should be bypassed with a high quality ceramic OCM bypass capacitor of at least 0.01μF , (unless you are using split supplies, then connect directly to a low impedance, ...
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... OUTCM + 0.1μF 10 – V – 0.1μ BAL – 0.1μ 6404 F01 0.01μF 100Ω – LTC6404 – V MINI-CIRCUITS – TCM4-19 0.1μF – 0.1μ 0.1μF 10 – V – 0.1μF V – 0.1μF + 0.01μ ...
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... IN have steering diodes to either power supply. If the input pair is overdriven, the current should be limited to under 10mA to prevent damage to the IC. The LTC6404 also has steering diodes to either power supply on the V SHDN pins (Pins 4 and 1), and if forced to voltages which exceed either supply, they too, should be current-limited to under 10mA ...
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... Note from the above equation, the differential output volt- + – age (V – completely independent of input OUT OUT and output common mode voltages, or the voltage at the common mode pin. This makes the LTC6404 ideally suited for pre-amplifi cation, level shifting and conversion + V INP – V SHDN 0.1μF ...
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... V ≈ (V – V OSDIFF(APPARENT) ICM Using the LTC6404 single supply application on a single 5V supply with 1% resistors, and the input common mode grounded, with the V the worst-case DC offset can induce 25mV of apparent offset voltage. With 0.1% resistors, the worst case appar- ent offset reduces to 2.5mV. ...
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... The operating The V (Refer to Figure 5). For mode feedback loop which internally forces V = –V , INP INM The output common mode range extends from 1.1V above – below V for the LTC6404-4 output common mode voltage range). ⎛ ⎞ The V ⎝ ⎜ ⎠ ⎟ sets the default mid-supply open circuit potential ...
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... Output Filter Considerations and Use Filtering at the output of the LTC6404 is often desired to provide either anti-aliasing or improved signal to noise ratio. To simplify this fi ltering, the LTC6404 includes an additional pair of differential outputs (OUTF which incorporate an internal lowpass fi ...
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... V 12pF – OUT OUTF 7 8 6404 F08 Figure 8. LTC6404 Filter Topology Modifi ed for 1/2x Filter Bandwidth (3 External Capacitors – ncm 24 Noise Considerations The LTC6404’s input referred voltage noise is on the order of 1.5nV/√Hz. Its input referred current noise is on the order of 3pA/√ ...
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... Layout Considerations Because the LTC6404 is a very high speed amplifi er sensitive to both stray capacitance and stray inductance. Three pairs of power supply pins are provided to keep the power supply inductance as low as possible to prevent degradation of amplifi ...
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... 100Ω Figure 11. Interfacing the LTC6404 High Speed 105Msps ADC 26 Interfacing the LTC6404 to A/D Converters The LTC6404’s rail-to-rail output and fast settling time make the LTC6404 ideal for interfacing to low voltage, single supply, differential input ADCs. The sampling process of ...
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... LTC DWG # 05-08-1691) 0.70 ±0.05 PACKAGE OUTLINE 0.25 ±0.05 0.50 BSC 0.75 ± 0.05 3.00 ± 0.10 (4 SIDES) PIN 1 TOP MARK (NOTE 6) 1.45 ± 0.10 (4-SIDES) 0.200 REF 0.00 – 0.05 LTC6404 BOTTOM VIEW—EXPOSED PAD PIN 1 NOTCH R = 0.20 TYP R = 0.115 OR 0.25 × 45° CHAMFER TYP 15 16 0.40 ± 0. (UD16) QFN 0904 0.25 ± 0.05 0.50 BSC 6404f 27 ...
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