Datasheet LTC2414, LTC2418 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 8-/16-Channel 24-Bit No Latency ∆ΣTM ADCs |
| 页数 / 页 | 50 / 4 — analog inpu. T anD reFerence The. denotes specifications which apply over … |
| 文件格式/大小 | PDF / 892 Kb |
| 文件语言 | 英语 |
analog inpu. T anD reFerence The. denotes specifications which apply over the full operating
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LTC2414/LTC2418
analog inpu T anD reFerence The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage l GND – 0.3 VCC + 0.3 V IN– Absolute/Common Mode IN– Voltage l GND – 0.3 VCC + 0.3 V VIN Input Differential Voltage Range l –VREF/2 –VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND VCC – 0.1 V VREF Reference Differential Voltage Range l 0.1 VCC V (REF+ – REF–) CS (IN+) IN+ Sampling Capacitance 18 pF CS (IN–) IN– Sampling Capacitance 18 pF CS (REF+) REF+ Sampling Capacitance 18 pF CS (REF–) REF– Sampling Capacitance 18 pF IDC_LEAK (IN+) IN+ DC Leakage Current CS = VCC = 5.5V, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current CS = VCC = 5.5V, IN– = 5V l –10 1 10 nA IDC_LEAK (REF+) REF+ DC Leakage Current CS = VCC = 5.5V, REF+ = 5V l –10 1 10 nA IDC_LEAK (REF–) REF– DC Leakage Current CS = VCC = 5.5V, REF– = GND l –10 1 10 nA Off Channel to In Channel Isolation DC 140 dB (RIN = 100Ω) 1Hz 140 dB fS = 15,3600Hz 140 dB tOPEN MUX Break-Before-Make Interval 2.7V ≤ VCC ≤ 5.5V 70 100 300 ns IS(OFF) Channel Off Leakage Current Channel at VCC and GND l –10 1 10 nA
D igiTal inpuT anD DigiTal ouTpuTs The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V l 2.5 V CS, FO, SDI 2.7V ≤ VCC ≤ 3.3V 2.0 V VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V l 0.8 V CS, FO, SDI 2.7V ≤ VCC ≤ 5.5V 0.6 V VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 9) l 2.5 V SCK 2.7V ≤ VCC ≤ 3.3V (Note 9) 2.0 V VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V (Note 9) l 0.8 V SCK 2.7V ≤ VCC ≤ 5.5V (Note 9) 0.6 V IIN Digital Input Current 0V ≤ VIN ≤ VCC l –10 10 µA CS, FO, SDI Digital Input Current 0V ≤ VIN ≤ VCC (Note 9) l –10 10 µA SCK CIN Digital Input Capacitance 10 pF CS, FO, SDI Digital Input Capacitance (Note 9) 10 pF SCK VOH High Level Output Voltage IO = –800µA l VCC–0.5 V SDO 241418fb 4 For more information www.linear.com/LTC2414
analog inpu T anD reFerence The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage l GND – 0.3 VCC + 0.3 V IN– Absolute/Common Mode IN– Voltage l GND – 0.3 VCC + 0.3 V VIN Input Differential Voltage Range l –VREF/2 –VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND VCC – 0.1 V VREF Reference Differential Voltage Range l 0.1 VCC V (REF+ – REF–) CS (IN+) IN+ Sampling Capacitance 18 pF CS (IN–) IN– Sampling Capacitance 18 pF CS (REF+) REF+ Sampling Capacitance 18 pF CS (REF–) REF– Sampling Capacitance 18 pF IDC_LEAK (IN+) IN+ DC Leakage Current CS = VCC = 5.5V, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current CS = VCC = 5.5V, IN– = 5V l –10 1 10 nA IDC_LEAK (REF+) REF+ DC Leakage Current CS = VCC = 5.5V, REF+ = 5V l –10 1 10 nA IDC_LEAK (REF–) REF– DC Leakage Current CS = VCC = 5.5V, REF– = GND l –10 1 10 nA Off Channel to In Channel Isolation DC 140 dB (RIN = 100Ω) 1Hz 140 dB fS = 15,3600Hz 140 dB tOPEN MUX Break-Before-Make Interval 2.7V ≤ VCC ≤ 5.5V 70 100 300 ns IS(OFF) Channel Off Leakage Current Channel at VCC and GND l –10 1 10 nA
D igiTal inpuT anD DigiTal ouTpuTs The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V l 2.5 V CS, FO, SDI 2.7V ≤ VCC ≤ 3.3V 2.0 V VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V l 0.8 V CS, FO, SDI 2.7V ≤ VCC ≤ 5.5V 0.6 V VIH High Level Input Voltage 2.7V ≤ VCC ≤ 5.5V (Note 9) l 2.5 V SCK 2.7V ≤ VCC ≤ 3.3V (Note 9) 2.0 V VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V (Note 9) l 0.8 V SCK 2.7V ≤ VCC ≤ 5.5V (Note 9) 0.6 V IIN Digital Input Current 0V ≤ VIN ≤ VCC l –10 10 µA CS, FO, SDI Digital Input Current 0V ≤ VIN ≤ VCC (Note 9) l –10 10 µA SCK CIN Digital Input Capacitance 10 pF CS, FO, SDI Digital Input Capacitance (Note 9) 10 pF SCK VOH High Level Output Voltage IO = –800µA l VCC–0.5 V SDO 241418fb 4 For more information www.linear.com/LTC2414