Datasheet LTC1417 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Low Power 14-Bit, 400ksps Sampling ADC Converter with Serial I/O |
| 页数 / 页 | 32 / 7 — TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25. C, unless otherwise … |
| 文件格式/大小 | PDF / 413 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25. C, unless otherwise specified). VDD Supply Current vs. VSS Supply Current vs
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LTC1417
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C, unless otherwise specified) VDD Supply Current vs VDD Supply Current vs VSS Supply Current vs Temperature (Unipolar Mode) Temperature (Bipolar Mode) Temperature (Bipolar Mode)
6 6 3.0 5 5 2.5 4 4 2.0 3 3 1.5 2 2 1.0 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) DD DD V V SSV 1 1 0.5 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1417 G13 1417 G14 1417 G15
VDD Supply Current vs Sampling VDD Supply Current vs Sampling VSS Supply Current vs Sampling Frequency (Unipolar Mode) Frequency (Bipolar Mode) Frequency (Bipolar Mode)
5.0 5.0 2.5 4.5 4.5 4.0 4.0 2.0 3.5 3.5 3.0 3.0 1.5 2.5 2.5 2.0 2.0 1.0 SUPPLY CURRENT (mA) 1.5 SUPPLY CURRENT (mA) 1.5 SUPPLY CURRENT (mA) DD DD SS V 1.0 V 1.0 V 0.5 0.5 0.5 0 0 0 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 350 400 450 500 SAMPLING FREQUENCY (kHz) SAMPLING FREQUENCY (kHz) SAMPLING FREQUENCY (kHz) 1417 G16 1417 G17 1417 G18
U U U PIN FUNCTIONS A + IN (Pin 1):
Positive Analog Input.
CLKOUT (Pin 8):
Conversion Clock Output.
A – IN (Pin 2):
Negative Analog Input.
DOUT (Pin 9):
Serial Data Output.
VREF (Pin 3):
2.50V Reference Output. Bypass to AGND
DGND (Pin 10):
Digital Ground. with 1µF.
SHDN (Pin 11):
Power Shutdown Input. Low selects
REFCOMP (Pin 4):
4.096V Reference Output. Bypass to shutdown. Shutdown mode selected by RD. RD = 0V for AGND using 10µF tantalum in parallel with 0.1µF ceramic. Nap mode and RD = 5V for Sleep mode.
AGND (Pin 5):
Analog Ground.
RD (Pin 12):
Read Input. This enables the output drivers.
EXTCLKIN (Pin 6):
External Conversion Clock Input. A 5V RD also sets the shutdown mode when SHDN goes low. input will enable the internal conversion clock. RD and SHDN low selects the quick wake-up Nap mode, RD high and SHDN low selects Sleep mode.
SCLK (Pin 7):
Data Clock Input. sn1417 1417fas 7
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C, unless otherwise specified) VDD Supply Current vs VDD Supply Current vs VSS Supply Current vs Temperature (Unipolar Mode) Temperature (Bipolar Mode) Temperature (Bipolar Mode)
6 6 3.0 5 5 2.5 4 4 2.0 3 3 1.5 2 2 1.0 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) DD DD V V SSV 1 1 0.5 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1417 G13 1417 G14 1417 G15
VDD Supply Current vs Sampling VDD Supply Current vs Sampling VSS Supply Current vs Sampling Frequency (Unipolar Mode) Frequency (Bipolar Mode) Frequency (Bipolar Mode)
5.0 5.0 2.5 4.5 4.5 4.0 4.0 2.0 3.5 3.5 3.0 3.0 1.5 2.5 2.5 2.0 2.0 1.0 SUPPLY CURRENT (mA) 1.5 SUPPLY CURRENT (mA) 1.5 SUPPLY CURRENT (mA) DD DD SS V 1.0 V 1.0 V 0.5 0.5 0.5 0 0 0 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 350 400 450 500 SAMPLING FREQUENCY (kHz) SAMPLING FREQUENCY (kHz) SAMPLING FREQUENCY (kHz) 1417 G16 1417 G17 1417 G18
U U U PIN FUNCTIONS A + IN (Pin 1):
Positive Analog Input.
CLKOUT (Pin 8):
Conversion Clock Output.
A – IN (Pin 2):
Negative Analog Input.
DOUT (Pin 9):
Serial Data Output.
VREF (Pin 3):
2.50V Reference Output. Bypass to AGND
DGND (Pin 10):
Digital Ground. with 1µF.
SHDN (Pin 11):
Power Shutdown Input. Low selects
REFCOMP (Pin 4):
4.096V Reference Output. Bypass to shutdown. Shutdown mode selected by RD. RD = 0V for AGND using 10µF tantalum in parallel with 0.1µF ceramic. Nap mode and RD = 5V for Sleep mode.
AGND (Pin 5):
Analog Ground.
RD (Pin 12):
Read Input. This enables the output drivers.
EXTCLKIN (Pin 6):
External Conversion Clock Input. A 5V RD also sets the shutdown mode when SHDN goes low. input will enable the internal conversion clock. RD and SHDN low selects the quick wake-up Nap mode, RD high and SHDN low selects Sleep mode.
SCLK (Pin 7):
Data Clock Input. sn1417 1417fas 7