Datasheet LTC1273, LTC1275, LTC1276 (Analog Devices) - 5

LTC1273 LTC1275/LTC1276
W U 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) LTC1273A/LTC1275A/LTC1276A LTC1273B/LTC1275B/LTC1276B 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 ● 0 ns 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 ● 0 ns t9 HBEN to RD Hold Time ● 0 ns 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
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
Linearity, offset and full scale specifications apply for unipolar and may cause permanent damage to the device. Exposure to any Absolute bipolar modes. Maximum Rating condition for extended periods may affect device
Note 7:
Integral nonlinearity is defined as the deviation of a code from a reliability and lifetime. straight line passing through the actual endpoints of the transfer curve.
Note 2:
All voltage values are with respect to ground with DGND and The deviation is measured from the center of the quantization band. AGND wired together (unless otherwise noted).
Note 8:
Bipolar offset (LTC1275/LTC1276) is the different voltage
Note 3:
When these pin voltages are taken below VSS (ground for measured from – 0.5LSB when the LTC1275/LTC1276 output code flickers LTC1273) or above VDD, they will be clamped by internal diodes. This between 0000 0000 0000 and 1111 1111 1111. product can handle input currents greater than 60mA below VSS (ground
Note 9:
Guaranteed by design, not subject to test. for LTC1273) or above VDD without latch-up.
Note 10:
Recommended operating conditions.
Note 4:
When these pin voltages are taken below VSS (ground for
Note11:
AIN must not exceed VDD or fall below VSS by more than 50mV for LTC1273) they will be clamped by internal diodes. This product can handle specified accuracy. Therefore the minimum supply voltage for the input currents greater than 60mA below VSS (ground for LTC1273) LTC1273 is + 4.95V. The minimum supplies for the LTC1275 are +4.75V without latch-up. These pins are not clamped to VDD. and – 2.45V and the minimum supplies for the LTC1276 are ±4.95V.
Note 5:
VDD = 5V (VSS = – 5V for LTC1275/LTC1276), 300kHz at 70°C and 250kHz at 125°C, tr = tf = 5ns unless otherwise specified. 127356fa 5