ltc1069-6 Linear Technology Corporation, ltc1069-6 Datasheet
ltc1069-6
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ltc1069-6 Summary of contents
Page 1
... The LTC1069-6 typically consumes 1mA under single 3V supply operation and 1.2mA under 5V operation. The cutoff frequency of the LTC1069-6 is clock tunable and it is equal to the clock frequency divided by 50. The input signal is sampled twice per clock cycle to lower the risk of aliasing. ...
Page 2
... ABSOLUTE MAXIMUM + – Total Supply Voltage ( .............................. 12V Operating Temperature Range LTC1069-6C ............................................ LTC1069-6I ........................................ – Storage Temperature ............................ – 150 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL CHARACTERISTICS f is the filter’s cutoff frequency and is equal to f CUTOFF R = 10k 5V unless otherwise specified ...
Page 3
... Note 2: The input voltage can swing to either rail (V output typically swings 50mV from ground and 0.8V from V Note 3: The LTC1069-6 is optimized for 3V and 5V operation. Although the device can operate with a single 10V supply or 5V, the total harmonic distortion will be degraded. For single 10V or 5V supply operation we recommend to use the LTC1069-1 ...
Page 4
... LTC1069 TYPICAL PERFORMANCE CHARACTERISTICS Passband Gain vs Clock Frequency SINGLE 0.5V IN RMS f = 750kHz CLK 15kHz CUTOFF 500kHz CLK – 10kHz CUTOFF – FREQUENCY (kHz) 1069-6 G04 Phase vs Frequency SINGLE 5V ...
Page 5
... An internal resistive divider biases Pin 1 to 0.4366 times the total power supply of the device (Figure 1). That is, with a single 5V supply, the potential at Pin 1 is 2.183V 1%. As the LTC1069-6 is optimized for single supply operation, the internal biasing of Pin 1 allows optimum output swing. The AGND pin should be buffered if used to bias other ICs ...
Page 6
... U APPLICATIONS INFORMATION Temperature Behavior The power supply current of the LTC1069-6 has a positive temperature coefficient. The GBW product of its internal op amps is nearly constant and the speed of the device does not degrade at high temperatures. Figures 4a, 4b and 4c show the behavior of the passband of the device for various supplies and temperatures ...
Page 7
... The internal sampling frequency of the LTC1069-6 is 100 times its cutoff frequency. For instance 98.5kHz, 100mV input of an LTC1069-6 operating with a 50kHz clock, a 1.5kHz, 484 V output. Table 4 shows details. Table 4. Aliasing (f ...
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... TYP 0.014 – 0.019 0.050 (0.355 – 0.483) (1.270) BSC : 499-3977 3. AGND V OUT 7 1/2 LT1366 + – LTC1069-6 – 3.3V CLK V CLK IN 500kHz 1/2 LT1366 6 – 10k 1069-6 TA05 40 ...