Datasheet LTC1197, LTC1197L, LTC1199, LTC1199L (Analog Devices) - 6

LTC1197/LTC1197L LTC1199/LTC1199L
AC CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = 5V, VREF = 5V, fCLK = fCLK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted. LTC1197 LTC1199 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
tCONV Conversion Time (See Figures 1, 2) ● 1.4 1.4 µs fSMPL(MAX) Maximum Sampling Frequency ● 500 450 kHz tdDO Delay Time, CLK↑ to DOUT Data Valid CLOAD = 20pF 68 78 68 78 ns ● 100 100 ns tdis Delay Time, CS↑ to DOUT Hi-Z ● 75 150 75 150 ns ten Delay Time, CLK↓ to DOUT Enabled CLOAD = 20pF ● 40 68 40 68 ns thDO Time Output Data Remains CLOAD = 20pF ● 15 55 15 55 ns Valid After CLK↑ tr DOUT Rise Time CLOAD = 20pF ● 10 20 10 20 ns tf DOUT Fall Time CLOAD = 20pF ● 10 20 10 20 ns CIN Input Capacitance Analog Input On Channel 20 20 pF Analog Input Off Channel 5 5 pF Digital Input 5 5 pF
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = 2.7V, VREF = 2.5V, fCLK = fCLK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted. LTC1197L LTC1199L SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
tCONV Conversion Time (See Figures 1, 2) ● 2.9 2.9 µs fSMPL(MAX) Maximum Sampling Frequency ● 250 210 kHz tdDO Delay Time, CLK↑ to DOUT Data Valid CLOAD = 20pF 130 180 130 180 ns ● 250 250 ns tdis Delay Time, CS↑ to DOUT Hi-Z ● 120 250 120 250 ns ten Delay Time, CLK↓ to DOUT Enabled CLOAD = 20pF ● 100 200 100 200 ns thDO Time Output Data Remains CLOAD = 20pF ● 30 120 30 120 ns Valid After CLK↑ tr DOUT Rise Time CLOAD = 20pF ● 15 40 15 40 ns tf DOUT Fall Time CLOAD = 20pF ● 15 40 15 40 ns CIN Input Capacitance Analog Input On Channel 20 20 pF Analog Input Off Channel 5 5 pF Digital Input 5 5 pF
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 3:
Integral nonlinearity is defined as deviation of a code from a of a device may be impaired. straight line passing through the actual endpoints of the transfer curve.
Note 2:
All voltage values are with respect to GND. The deviation is measured from the center of the quantization band.
Note 4:
Channel leakage current is measured after the channel selection. 6