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LTC1605-1IG Datasheet(PDF) 4 Page - Linear Technology |
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LTC1605-1IG Datasheet(HTML) 4 Page - Linear Technology |
4 / 20 page 4 LTC1605-1/LTC1605-2 The q denotes the specifications which apply over the full operating temperature SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fSAMPLE(MAX) Maximum Sampling Frequency q 100 kHz tCONV Conversion Time q 8 µs tACQ Acquisition Time q 2 µs t1 Convert Pulse Width (Note 11) q 40 ns t2 Data Valid Delay After R/C ↓ (Note 9) q 8 µs t3 BUSY Delay from R/C ↓ CL = 50pF q 65 ns t4 BUSY Low 8 µs t5 BUSY Delay After End of Conversion 220 ns t6 Aperture Delay 40 ns t7 Bus Relinquish Time q 10 35 83 ns t8 BUSY Delay After Data Valid q 50 200 ns t9 Previous Data Valid After R/C ↓ 7.4 µs t10 R/C to CS Setup Time (Notes 9, 10) 10 ns t11 Time Between Conversions 10 µs t12 Bus Access and Byte Delay (Notes 9, 10) 10 83 ns The q denotes the specifications which apply over the full operating temperature SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Positive Supply Voltage (Notes 9, 10) 4.75 5.25 V IDD Positive Supply Current q 11 16 mA PDIS Power Dissipation 55 80 mW Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: All voltage values are with respect to ground with DGND, AGND1 and AGND2 wired together (unless otherwise noted). Note 3: When these pin voltages are taken below ground or above VANA = VDIG = VDD, they will be clamped by internal diodes. This product can handle input currents of greater than 100mA below ground or above VDD without latch-up. Note 4: When these pin voltages are taken below ground, they will be clamped by internal diodes. This product can handle input currents of 90mA below ground without latchup. These pins are not clamped to VDD. Note 5: VDD = 5V, fSAMPLE = 100kHz, tr = tf = 5ns unless otherwise specified. Note 6: Linearity, offset and full-scale specifications apply for a VIN input with respect to ground. Note 7: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual end points of the transfer curve. The deviation is measured from the center of the quantization band. Note 8: Zero error for the LTC1605-1 is the voltage measured from 0.5LSB when the output code flickers between 0000 0000 0000 0000 and 0000 0000 0000 0001. Zero error for the LTC1605-2 is the voltage measured from – 0.5LSB when the output code flickers between 0000 0000 0000 0000 and 1111 1111 1111 1111. Note 9: Guaranteed by design, not subject to test. Note 10: Recommended operating conditions. Note 11: With CS low the falling R/C edge starts a conversion. If R/C returns high at a critical point during the conversion it can create small errors. For best results ensure that R/C returns high within 3 µs after the start of the conversion. Note 12: As measured with fixed resistors shown in Figure 4. Adjustable to zero with external potentiometer. Note 13: Full-scale error is the untrimmed deviation from ideal last code transition, divided by the full-scale range and includes the effect of offset error. Note 14: All specifications in dB are referred to a full-scale 4V input for the LTC1605-1 and to ±4V input for the LTC1605-2. Note 15: Full-power bandwidth is defined as full-scale input frequency at which a signal-to-(noise + distortion) degrades to 60dB or 10 bits of accuracy. Note 16: Recovers to specified performance after ( ±20V) input overvoltage for the LTC1605-1 and ±15V for the LTC1605-2. TI I G CHARACTERISTICS POWER REQUIRE E TS range, otherwise specifications are at TA = 25°C. (Note 5) range, otherwise specifications are at TA = 25°C. (Note 5) |
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