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LTC1275 Datasheet(PDF) 5 Page - Linear Technology |
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LTC1275 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 24 page  5 LTC1273 LTC1275/LTC1276 127356fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS t3 Data Access Time After RD ↓ CL = 20pF 40 90 ns Commercial ● 110 ns Military ● 120 ns CL = 100pF 50 125 ns Commercial ● 150 ns Military ● 170 ns t4 RD Pulse Width ● t3 ns t5 CS to RD Hold Time ● 0ns t6 Data Setup Time After BUSY ↑ 40 70 ns Commercial ● 90 ns Military ● 100 ns t7 Bus Relinquish Time 20 30 75 ns Commercial ● 20 85 ns Military ● 20 90 ns t8 HBEN to RD Setup Time ● 0ns t9 HBEN to RD Hold Time ● 0ns t10 Delay Between RD Operations ● 40 ns t11 Delay Between Conversions (Note 10) 500 ns Commercial ● 600 ns Military ● 1000 ns t12 Aperture Delay of Sample-and-Hold 25 ns LTC1273A/LTC1275A/LTC1276A LTC1273B/LTC1275B/LTC1276B Note 6: Linearity, offset and full scale specifications apply for unipolar and bipolar modes. Note 7: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is measured from the center of the quantization band. Note 8: Bipolar offset (LTC1275/LTC1276) is the different voltage measured from – 0.5LSB when the LTC1275/LTC1276 output code flickers between 0000 0000 0000 and 1111 1111 1111. Note 9: Guaranteed by design, not subject to test. Note 10: Recommended operating conditions. Note11: AIN must not exceed VDD or fall below VSS by more than 50mV for specified accuracy. Therefore the minimum supply voltage for the LTC1273 is + 4.95V. The minimum supplies for the LTC1275 are +4.75V and – 2.45V and the minimum supplies for the LTC1276 are ±4.95V. Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All voltage values are with respect to ground with DGND and AGND wired together (unless otherwise noted). Note 3: When these pin voltages are taken below VSS (ground for LTC1273) or above VDD, they will be clamped by internal diodes. This product can handle input currents greater than 60mA below VSS (ground for LTC1273) or above VDD without latch-up. Note 4: When these pin voltages are taken below VSS (ground for LTC1273) they will be clamped by internal diodes. This product can handle input currents greater than 60mA below VSS (ground for LTC1273) without latch-up. These pins are not clamped to VDD. Note 5: VDD = 5V (VSS = – 5V for LTC1275/LTC1276), 300kHz at 70°C and 250kHz at 125 °C, tr = tf = 5ns unless otherwise specified. TI I G CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specfications are at TA = 25°C. See Timing Characteristics Figures (Note 5) |
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