Datasheet LTC2452 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | Ultra-Tiny, Differential, 16-Bit ΔΣ ADC with SPI Interface |
| Páginas / Página | 22 / 4 — TiMing characTerisTics The. denotes the specifications which apply over … |
| Formato / tamaño de archivo | PDF / 491 Kb |
| Idioma del documento | Inglés |
TiMing characTerisTics The. denotes the specifications which apply over the full operating temperature
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LTC2452
TiMing characTerisTics The
l
denotes the specifications which apply over the full operating temperature range,otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tCONV Conversion Time l 13 16.6 23 ms fSCK SCK Frequency Range l 2 MHz tlSCK SCK Low Period l 250 ns thSCK SCK High Period l 250 ns t1 CS Falling Edge to SDO Low-Z (Notes 7, 8) l 0 100 ns t2 CS Rising Edge to SDO Hi-Z (Notes 7, 8) l 0 100 ns t3 CS Falling Edge to SCK Falling Edge l 100 ns tKQ SCK Falling Edge to SDO Valid (Note 7) l 0 100 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 5:
CS = VCC. A positive current is flowing into the DUT pin. may cause permanent damage to the device. Exposure to any Absolute
Note 6:
SCK = VCC or GND. SDO is high impedance. Maximum Rating condition for extended periods may affect device
Note 7:
See Figure 4. reliability and lifetime.
Note 8:
See Figure 5.
Note 2.
All voltage values are with respect to GND. VCC = 2.7V to 5.5V
Note 9:
Input sampling current is the average input current drawn from the unless otherwise specified. input sampling network while the LTC2452 is actively sampling the input. VREFCM = VREF/2, FS = VREF
Note 10:
A positive current is flowing into the DUT pin. V + – + – IN = VIN – VIN , –VREF ≤ VIN ≤ VREF; VINCM = (VIN + VIN )/2.
Note 3.
Guaranteed by design, not subject to test.
Note 4.
Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. Guaranteed by design and test correlation.
Typical perForMance characTerisTics (TA = 25°C, unless otherwise noted) Integral Nonlinearity, VCC = 5V Integral Nonlinearity, VCC = 3V Maximum INL vs Temperature
3 3 3 2 2 2 1 TA = 90°C 1 1 V T CC = VREF = 5V, 4.1V, 3V A = –45°C, 25°C, 90°C 0 0 0 INL (LSB) TA = –45°C, 25°C INL (LSB) INL (LSB) –1 –1 –1 –2 –2 –2 –3 –3 –3 –5 –4 –3 –2 –1 0 1 2 3 4 5 –3 –2 –1 0 1 2 3 –50 –25 0 25 50 75 100 DIFFERENTIAL INPUT VOLTAGE (V) DIFFERENTIAL INPUT VOLTAGE (V) TEMPERATURE (°C) 2452 G01 2452 G02 2452 G03 2452fd 4 For more information www.linear.com/LTC2452
TiMing characTerisTics The
l
denotes the specifications which apply over the full operating temperature range,otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tCONV Conversion Time l 13 16.6 23 ms fSCK SCK Frequency Range l 2 MHz tlSCK SCK Low Period l 250 ns thSCK SCK High Period l 250 ns t1 CS Falling Edge to SDO Low-Z (Notes 7, 8) l 0 100 ns t2 CS Rising Edge to SDO Hi-Z (Notes 7, 8) l 0 100 ns t3 CS Falling Edge to SCK Falling Edge l 100 ns tKQ SCK Falling Edge to SDO Valid (Note 7) l 0 100 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 5:
CS = VCC. A positive current is flowing into the DUT pin. may cause permanent damage to the device. Exposure to any Absolute
Note 6:
SCK = VCC or GND. SDO is high impedance. Maximum Rating condition for extended periods may affect device
Note 7:
See Figure 4. reliability and lifetime.
Note 8:
See Figure 5.
Note 2.
All voltage values are with respect to GND. VCC = 2.7V to 5.5V
Note 9:
Input sampling current is the average input current drawn from the unless otherwise specified. input sampling network while the LTC2452 is actively sampling the input. VREFCM = VREF/2, FS = VREF
Note 10:
A positive current is flowing into the DUT pin. V + – + – IN = VIN – VIN , –VREF ≤ VIN ≤ VREF; VINCM = (VIN + VIN )/2.
Note 3.
Guaranteed by design, not subject to test.
Note 4.
Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. Guaranteed by design and test correlation.
Typical perForMance characTerisTics (TA = 25°C, unless otherwise noted) Integral Nonlinearity, VCC = 5V Integral Nonlinearity, VCC = 3V Maximum INL vs Temperature
3 3 3 2 2 2 1 TA = 90°C 1 1 V T CC = VREF = 5V, 4.1V, 3V A = –45°C, 25°C, 90°C 0 0 0 INL (LSB) TA = –45°C, 25°C INL (LSB) INL (LSB) –1 –1 –1 –2 –2 –2 –3 –3 –3 –5 –4 –3 –2 –1 0 1 2 3 4 5 –3 –2 –1 0 1 2 3 –50 –25 0 25 50 75 100 DIFFERENTIAL INPUT VOLTAGE (V) DIFFERENTIAL INPUT VOLTAGE (V) TEMPERATURE (°C) 2452 G01 2452 G02 2452 G03 2452fd 4 For more information www.linear.com/LTC2452