Datasheet LTC2414, LTC2418 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 8-/16-Channel 24-Bit No Latency ∆ΣTM ADCs |
| 页数 / 页 | 50 / 6 — T iMing characTerisTics The. denotes specifications which apply over the … |
| 文件格式/大小 | PDF / 892 Kb |
| 文件语言 | 英语 |
T iMing characTerisTics The. denotes specifications which apply over the full operating temperature
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LTC2414/LTC2418
T iMing characTerisTics 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
t1 CS ↓ to SDO Low l 0 200 ns t2 CS ↑ to SDO High Z l 0 200 ns t3 CS ↓ to SCK ↓ (Note 10) l 0 200 ns t4 CS ↓ to SCK ↑ (Note 9) l 50 ns tKQMAX SCK ↓ to SDO Valid l 220 ns tKQMIN SDO Hold After SCK ↓ (Note 5) l 15 ns t5 SCK Set-Up Before CS ↓ l 50 ns t6 SCK Hold After CS ↓ l 50 ns t7 SDI Setup Before SCK ↑ (Note 5) l 100 ns t8 SDI Hold After SCK ↑ (Note 5) l 100 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 8:
FO = VCC (internal oscillator) or fEOSC = 128000Hz ±2% may cause permanent damage to the device. Exposure to any Absolute (external oscillator). Maximum Rating condition for extended periods may affect device
Note 9:
The converter is in external SCK mode of operation such that the reliability and lifetime. SCK pin is used as digital input. The frequency of the clock signal driving
Note 2:
All voltage values are with respect to GND. SCK during the data output is fESCK and is expressed in kHz.
Note 3:
VCC = 2.7V to 5.5V unless otherwise specified.
Note 10:
The converter is in internal SCK mode of operation such that the VREF = REF+ – REF–, VREFCM = (REF+ + REF–)/2; VIN = IN+ – IN–, SCK pin is used as digital output. In this mode of operation the SCK pin VINCM = (IN+ + IN–)/2, IN+ and IN– are defined as the selected positive and has a total equivalent load capacitance CLOAD = 20pF. negative input respectively.
Note 11:
The external oscillator is connected to the FO pin. The external
Note 4:
FO pin tied to GND or to VCC or to external conversion clock source oscillator frequency, fEOSC, is expressed in kHz. with fEOSC = 153600Hz unless otherwise specified.
Note 12:
The converter uses the internal oscillator.
Note 5:
Guaranteed by design, not subject to test. FO = 0V or FO = VCC.
Note 6:
Integral nonlinearity is defined as the deviation of a code from a
Note 13:
The output noise includes the contribution of the internal straight line passing through the actual endpoints of the transfer curve. calibration operations. The deviation is measured from the center of the quantization band.
Note 14:
Guaranteed by design and test correlation.
Note 7:
FO = 0V (internal oscillator) or fEOSC = 153600Hz ±2% (external oscillator). 241418fb 6 For more information www.linear.com/LTC2414
T iMing characTerisTics 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
t1 CS ↓ to SDO Low l 0 200 ns t2 CS ↑ to SDO High Z l 0 200 ns t3 CS ↓ to SCK ↓ (Note 10) l 0 200 ns t4 CS ↓ to SCK ↑ (Note 9) l 50 ns tKQMAX SCK ↓ to SDO Valid l 220 ns tKQMIN SDO Hold After SCK ↓ (Note 5) l 15 ns t5 SCK Set-Up Before CS ↓ l 50 ns t6 SCK Hold After CS ↓ l 50 ns t7 SDI Setup Before SCK ↑ (Note 5) l 100 ns t8 SDI Hold After SCK ↑ (Note 5) l 100 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 8:
FO = VCC (internal oscillator) or fEOSC = 128000Hz ±2% may cause permanent damage to the device. Exposure to any Absolute (external oscillator). Maximum Rating condition for extended periods may affect device
Note 9:
The converter is in external SCK mode of operation such that the reliability and lifetime. SCK pin is used as digital input. The frequency of the clock signal driving
Note 2:
All voltage values are with respect to GND. SCK during the data output is fESCK and is expressed in kHz.
Note 3:
VCC = 2.7V to 5.5V unless otherwise specified.
Note 10:
The converter is in internal SCK mode of operation such that the VREF = REF+ – REF–, VREFCM = (REF+ + REF–)/2; VIN = IN+ – IN–, SCK pin is used as digital output. In this mode of operation the SCK pin VINCM = (IN+ + IN–)/2, IN+ and IN– are defined as the selected positive and has a total equivalent load capacitance CLOAD = 20pF. negative input respectively.
Note 11:
The external oscillator is connected to the FO pin. The external
Note 4:
FO pin tied to GND or to VCC or to external conversion clock source oscillator frequency, fEOSC, is expressed in kHz. with fEOSC = 153600Hz unless otherwise specified.
Note 12:
The converter uses the internal oscillator.
Note 5:
Guaranteed by design, not subject to test. FO = 0V or FO = VCC.
Note 6:
Integral nonlinearity is defined as the deviation of a code from a
Note 13:
The output noise includes the contribution of the internal straight line passing through the actual endpoints of the transfer curve. calibration operations. The deviation is measured from the center of the quantization band.
Note 14:
Guaranteed by design and test correlation.
Note 7:
FO = 0V (internal oscillator) or fEOSC = 153600Hz ±2% (external oscillator). 241418fb 6 For more information www.linear.com/LTC2414