ltc6910-2 Linear Technology Corporation, ltc6910-2 Datasheet
ltc6910-2
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ltc6910-2 Summary of contents
Page 1
... PC board space. The inverting gain is adjustable using a 3-bit digital input to select gains 10, 20, 50 and 100V/V in the LTC6910- 16, 32 and 64V/V in the LTC6910-2; and 5,6 and 7V/V in the LTC6910-3. The LTC6910-Xs are inverting amplifiers with rail-to-rail output ...
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... U W ORDER PART NUMBER LTC6910-1CTS8 LTC6910-1ITS8 LTC6910-1HTS8 LTC6910-2CTS8 TOP VIEW + LTC6910-2ITS8 LTC6910-2HTS8 6 G1 LTC6910-3CTS8 5 G0 LTC6910-3ITS8 LTC6910-3HTS8 = 230 C/W JA TS8 PART MARKING* LTB5 (6910-1) LTACQ (6910-2) LTACS (6910-3) NOMINAL ) INPUT P-P Single 5V Single 3V IMPEDANCE Supply Supply ( ...
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... GAI SETTI PROPERTIES Table 2. LTC6910 Volts/Volt – – – – – – –64 Table 3. LTC6910 Volts/Volt – – – – –5 ...
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... LTC6910-2/LTC6910-3 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are midsupply point, unless otherwise noted. PARAMETER Specifications for the LTC6910-1, LTC6910-2 and LTC6910-3 Total Supply Voltage Supply Current Output Voltage Swing LOW (Note 5) Output Voltage Swing HIGH (Note 5) Output Short-Circuit Current (Note 6) AGND Open-Circuit Voltage AGND Rejection (i ...
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... 5V, Gain = 100 10k 5V, Gain = 100 500 S L Gain = 1 Gain = Gain = 0 Gain = 1 Gain = 2 Gain = 5 Gain = 10, 20, 50, 100 LTC6910-1 LTC6910-2/LTC6910-3 = 10k L LTC6910-1C/LTC6910-1I LTC6910-1H MIN TYP MAX MIN TYP MAX – 0.05 0 0.07 – 0.06 0 0.07 – 0.1 – 0.02 0.06 – 0.12 – 0.02 0.08 5.96 6.02 6.08 5.96 6.02 6.08 13.85 13.95 14.05 13.83 13.95 14.05 19.7 19.9 20.1 19.7 19.9 20.1 19 ...
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... LTC6910-1 LTC6910-2/LTC6910-3 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are midsupply point, unless otherwise noted. PARAMETER Specifications for LTC6910-1 Only DC Small-Signal Output Resistance Gain-Bandwidth Product Wideband Noise (Referred to Input) Voltage Noise Density (Referred to Input) Total Harmonic Distortion AGND (Common Mode) Input Voltage Range ...
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... ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are midsupply point, unless otherwise noted. PARAMETER Specifications for LTC6910-2 Only Voltage Gain (Note 7) Offset Voltage Magnitude (Internal Op Amp (Note 8) OS(OA) Offset Voltage Drift (Internal Op Amp) (Note 8) Offset Voltage Magnitude (Referred to “IN” Pin OS(IN) ...
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... LTC6910-1 LTC6910-2/LTC6910-3 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are midsupply point, unless otherwise noted. PARAMETER Specifications for LTC6910-2 Only DC Small-Signal Output Resistance Gain-Bandwidth Product Wideband Noise (Referred to Input) Voltage Noise Density (Referred to Input) Total Harmonic Distortion AGND (Common Mode) Input Voltage Range ...
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... Gain = 10k 5V, Gain = 500 S L Gain = 1 Gain = Gain = 0 Gain = 1 Gain = 2 Gain = 3 Gain = 4 Gain = 5 Gain = 6 Gain = 7 LTC6910-1 LTC6910-2/LTC6910-3 = 10k L LTC6910-3C/LTC6910-3I LTC6910-3H MIN TYP MAX MIN TYP MAX – 0.05 0 0.07 – 0.05 0 0.09 – 0.1 – 0.02 0.06 – 0.11 – 0.02 0.06 5.93 6.02 6.08 5.93 6.02 6.09 9.35 9.5 9.7 9.35 9 ...
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... LTC6910-1 LTC6910-2/LTC6910-3 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are midsupply point, unless otherwise noted. PARAMETER Specifications for LTC6910-3 Only DC Small-Signal Output Resistance Gain-Bandwidth Product Wideband Noise (Referred to Input) Voltage Noise Density (Referred to Input) Total Harmonic Distortion AGND (Common Mode) Input Voltage Range ...
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... GAIN = 1 –80 0. 2.5V S –90 0.003 (2.83V ) OUT RMS P-P THD MEASURES HD2 AND HD3 –100 0.001 0 50 100 150 FREQUENCY (kHz) LTC6910-1 LTC6910-2/LTC6910-3 (LTC6910-1) LTC6910-1 –3dB Bandwidth vs Gain Setting 8.0 RMS 7.5 • 7.0 6.5 6.0 • 5.5 5.0 • 4.5 4.0 • 3.5 3.0 2.5 • 2.0 • 1.5 • • 1.0 ...
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... C +V – 1 – 2.0 S –V + 2.0 S –V + 1.5 S –V + 1.0 S SINK –V + 0.5 S –V S 0.01 0 OUTPUT CURRENT (mA) LTC6910-2 Distortion with Light Loading (R = 10k) L – 2. (2.83V ) OUT RMS P-P –40 THD MEASURES HD2 AND HD3 –50 –60 GAIN = 64 –70 GAIN = 8 –80 GAIN = 1 –90 –100 50 ...
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... GAIN = 1 –80 0. 2.5V S –90 0.003 (2.83V ) OUT RMS P-P THD MEASURES HD2 AND HD3 –100 0.001 50 100 0 150 FREQUENCY (kHz) LTC6910-1 LTC6910-2/LTC6910-3 (LTC6910-3) LTC6910-3 –3dB Bandwidth vs Gain Setting 8.0 • 7.0 • 6.0 5.0 • 4.0 • • 3.0 • • • 2.0 1.0 0 10M GAIN ...
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... LTC6910-1 LTC6910-2/LTC6910 CTIO S OUT (Pin 1): Analog Output. This is the output of an internal operational amplifier and swings to near the + – power supply rails (V and specified in the Electrical Characteristics table. The internal op amp remains active at all times, including the zero gain setting (digital input 000) ...
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... In the “zero” gain state (digital input 000), analog switches disconnect the IN pin internally and this pin presents a very high input resis- LTC6910-2/LTC6910-3 tance. The input may vary from rail to rail in the “zero” gain setting but the output is insensitive to it and remains at the AGND potential. Circuitry driving the IN pin must consider the LTC6910-X’ ...
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... LTC6910-1 LTC6910-2/LTC6910 CTIO S – (Pins 4, 8): Power Supply Pins. The V should be bypassed with 0.1 F capacitors to an adequate analog ground plane using the shortest possible wiring. Electrically clean supplies and a low impedance ground are important for the high dynamic range available from the LTC6910-X (see further details under AGND) ...
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... Exact settling timing depends on the gain change, the input signal and the possibility of slew limiting at the output. However as a basic guideline, the range of is 20ns to 1400ns for the LTC6910-1, 20ns to 900ns for the LTC6910-2 and 20ns to 120ns for the LTC6910-3. These + , numbers correspond to the ranges of –3dB Bandwidth in the plots of that title under Typical Performance Character- istics ...
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... LTC6910-1 LTC6910-2/LTC6910 APPLICATIO S I FOR ATIO Offset Nulling and Drift Because internal op amp offset voltage V independent as noted above, offset trimming can be readily added at the AGND pin, which drives the noninverting input of the internal op amp. Such a trim shifts the AGND voltage slightly from the system’ ...
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... SNR above unity V/V or 0dB 10V total power supply the LTC6910-1 (gains 0V to 100V/V) is typically 120dB (the ratio of a nominal 9.9V the 3 for the LTC6910-2 (gains 0V to 64V) is also 120dB; for LTC6910-1 LTC6910-2/LTC6910-3 .) This DR has a physical interpretation as the , or 3.5V ...
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... LTC6910-1 LTC6910-2/LTC6910-3 U TYPICAL APPLICATIO S the LTC6910-3 (gains 0V to 7V/ 117dB. The SNR from an amplifier is the ratio of input level to input- referred noise, and can be 110dB with the LTC6910 family at unity gain. Construction and Instrumentation Cautions Electrically clean construction is important in applications seeking the full dynamic range of the LTC6910-X ampli- fier ...
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... LT1884 offset in the integrating amplifier. If desired, another coupling capacitor in series with the input can relax the requirements on DC input level as well – – BANDWIDTH CONTROL PGA (GAIN B) 1 BANDWIDTH 2 R1C1 LTC6910-1 LTC6910-2/LTC6910-3 – V OUT 6910 F05 + GAIN = – (GAIN B) 6910123fa 21 ...
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... LTC6910-1 LTC6910-2/LTC6910-3 U TYPICAL APPLICATIO S Measured frequency responses in Figure 8 with LTC6910-1 PGAs demonstrate bandwidth settings of 10Hz, 100Hz and 1kHz, with digital codes at the BW inputs of respectively 001, 100 and 111, and unity gain in each case. By scaling C2, this circuit can serve other bandwidths, + – ...
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... MIN (NOTE 4) 0.65 BSC 0.80 – 0.90 0.09 – 0.20 (NOTE 3) 1.00 MAX 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 LTC6910-1 LTC6910-2/LTC6910-3 2.90 BSC (NOTE 4) PIN ONE ID 0.22 – 0.36 8 PLCS (NOTE 3) 0.01 – 0.10 1.95 BSC TS8 TSOT-23 0802 6910123fa 23 ...
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... Frequency Response, LTC6910-2 40 G2, G1 111 G2, G1 110 30 G2, G1 101 G2, G1 100 20 G2, G1 011 10 G2, G1 010 G2, G1 001 10V 5mV S ...