Datasheet LTC1860L, LTC1861L (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | µPower, 3V, 12-Bit, 150ksps 1- and 2-Channel ADCs in MSOP |
| Seiten / Seite | 12 / 4 — W U. TI I G CHARACTERISTICS The. denotes specifications which apply over … |
| Dateiformat / Größe | PDF / 240 Kb |
| Dokumentensprache | Englisch |
W U. TI I G CHARACTERISTICS The. denotes specifications which apply over the full operating temperature
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC1860L/LTC1861L
W U TI I G CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25
°
C. VCC = 2.7V, VREF = 2.5V, fSCK = fSCK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tCONV Conversion Time (See Figure 1) ● 3.7 4.66 µs fSMPL(MAX) Maximum Sampling Frequency ● 150 kHz tdDO Delay Time, SCK↓ to SDO Data Valid CLOAD = 20pF 45 55 ns ● 60 ns tdis Delay Time, CONV↑ to SDO Hi-Z ● 55 120 ns ten Delay Time, CONV↓ to SDO Enabled CLOAD = 20pF ● 35 120 ns thDO Time Output Data Remains CLOAD = 20pF ● 5 15 ns Valid After SCK↓ tr SDO Rise Time CLOAD = 20pF 25 ns tf SDO Fall Time CLOAD = 20pF 12 ns
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 4:
Channel leakage current is measured while the part is in sample of a device may be impaired. mode.
Note 2:
All voltage values are with respect to GND.
Note 5:
Assumes fSCK = fSCK(MAX). In the case of the LTC1860L SCK does
Note 3:
Integral nonlinearity is defined as deviation of a code from a not have to be clocked during this time if the SDO data word is not straight line passing through the actual endpoints of the transfer curve. desired. In the case of the LTC1861L a minimum of 2 clocks are required The deviation is measured from the center of the quantization band. on the SCK input after CONV falls to configure the MUX during this time.
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Sampling Frequency Supply Current vs Temperature Sleep Current vs Temperature
1000 600 20 CONV LOW = 1.5µs f f S = 150kHz S = 150kHz TA = 25°C V V CC = 2.7V CC = 2.7V V 500 CC = 2.7V V V REF = 2.5V REF = 2.5V 100 µA) 15 µA) µA) 400 10 300 10 200 SUPPLY CURRENT ( 1 SUPPLY CURRENT ( 5 SHUTDOWN CURRENT ( 100 0.1 0 0 0.01 0.1 1 10 100 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SAMPLING FREQUENCY (kHz) TEMPERATURE (°C) TEMPERATURE (°C) 1860L/61L G01 1860L/61L G02 1860L/61L G03 18601Lf 4
W U TI I G CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25
°
C. VCC = 2.7V, VREF = 2.5V, fSCK = fSCK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tCONV Conversion Time (See Figure 1) ● 3.7 4.66 µs fSMPL(MAX) Maximum Sampling Frequency ● 150 kHz tdDO Delay Time, SCK↓ to SDO Data Valid CLOAD = 20pF 45 55 ns ● 60 ns tdis Delay Time, CONV↑ to SDO Hi-Z ● 55 120 ns ten Delay Time, CONV↓ to SDO Enabled CLOAD = 20pF ● 35 120 ns thDO Time Output Data Remains CLOAD = 20pF ● 5 15 ns Valid After SCK↓ tr SDO Rise Time CLOAD = 20pF 25 ns tf SDO Fall Time CLOAD = 20pF 12 ns
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 4:
Channel leakage current is measured while the part is in sample of a device may be impaired. mode.
Note 2:
All voltage values are with respect to GND.
Note 5:
Assumes fSCK = fSCK(MAX). In the case of the LTC1860L SCK does
Note 3:
Integral nonlinearity is defined as deviation of a code from a not have to be clocked during this time if the SDO data word is not straight line passing through the actual endpoints of the transfer curve. desired. In the case of the LTC1861L a minimum of 2 clocks are required The deviation is measured from the center of the quantization band. on the SCK input after CONV falls to configure the MUX during this time.
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Sampling Frequency Supply Current vs Temperature Sleep Current vs Temperature
1000 600 20 CONV LOW = 1.5µs f f S = 150kHz S = 150kHz TA = 25°C V V CC = 2.7V CC = 2.7V V 500 CC = 2.7V V V REF = 2.5V REF = 2.5V 100 µA) 15 µA) µA) 400 10 300 10 200 SUPPLY CURRENT ( 1 SUPPLY CURRENT ( 5 SHUTDOWN CURRENT ( 100 0.1 0 0 0.01 0.1 1 10 100 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SAMPLING FREQUENCY (kHz) TEMPERATURE (°C) TEMPERATURE (°C) 1860L/61L G01 1860L/61L G02 1860L/61L G03 18601Lf 4