Datasheet LTC1409 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | 12-Bit, 800ksps Sampling A/D Converter with Shutdown |
| Seiten / Seite | 20 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Integral Nonlinearity vs. … |
| Dateiformat / Größe | PDF / 356 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Integral Nonlinearity vs. Differential Nonlinearity vs. Output Code
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LTC1409
W U TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Differential Nonlinearity vs Output Code Output Code
1.00 1.00 0.50 0.50 0 0 INL ERROR (LSB) DNL ERROR (LSB) –0.50 –0.50 –1.00 –1.00 0 512 1024 1536 2048 2560 3072 3584 4096 0 512 1024 1536 2048 2560 3072 3584 4096 OUTPUT CODE OUTPUT CODE LT1409 • TPC07 LT1409 • TPC06
Power Supply Feedthrough vs Input Common Mode Rejection vs Ripple Frequency Input Frequency
0 80 –10 70 –20 60 –30 50 –40 –50 40 –60 30 –70 DGND 20 –80 VDD COMMON MODE REJECTION (dB) –90 VSS 10 –100 0 AMPLITUDE OF POWER SUPPLY FEEDTHROUGH (dB) 1k 10k 100k 1M 10M 1k 10k 100k 1M 10M RIPPLE FREQUENCY (Hz) INPUT FREQUENCY (Hz) LTC1409 • TPC08 LT1409 • TPC09
U U U PI FU CTIO S + A D3 to D0 (Pins 15 to 18):
Three-State Data Outputs.
IN (Pin 1):
Positive Analog Input, ±2.5V.
– A OGND (Pin 19):
Digital Ground for Output Drivers. Tie
IN (Pin 2):
Negative Analog Input, ±2.5V. to AGND.
VREF (Pin 3):
2.50V Reference Output.
NAP/SLP (Pin 20):
Power Shutdown Mode. Selects the
REFCOMP (Pin 4):
4.06V Reference Output. Bypass to mode invoked by the SHDN pin. Low selects Sleep AGND using 10µF tantalum in parallel with 0.1µF or mode and high selects quick wake-up Nap mode. 10µF ceramic.
SHDN (Pin 21):
Power Shutdown Input. A low logic
AGND (Pin 5):
Analog Ground. level will invoke the Shutdown mode selected by the
D11 to D4 (Pins 6 to 13):
Three-State Data Outputs. NAP/SLP pin.
DGND (Pin 14):
Digital Ground for Internal Logic. Tie to
RD (Pin 22):
Read Input. This enables the output AGND. drivers when CS is low. 6
W U TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Differential Nonlinearity vs Output Code Output Code
1.00 1.00 0.50 0.50 0 0 INL ERROR (LSB) DNL ERROR (LSB) –0.50 –0.50 –1.00 –1.00 0 512 1024 1536 2048 2560 3072 3584 4096 0 512 1024 1536 2048 2560 3072 3584 4096 OUTPUT CODE OUTPUT CODE LT1409 • TPC07 LT1409 • TPC06
Power Supply Feedthrough vs Input Common Mode Rejection vs Ripple Frequency Input Frequency
0 80 –10 70 –20 60 –30 50 –40 –50 40 –60 30 –70 DGND 20 –80 VDD COMMON MODE REJECTION (dB) –90 VSS 10 –100 0 AMPLITUDE OF POWER SUPPLY FEEDTHROUGH (dB) 1k 10k 100k 1M 10M 1k 10k 100k 1M 10M RIPPLE FREQUENCY (Hz) INPUT FREQUENCY (Hz) LTC1409 • TPC08 LT1409 • TPC09
U U U PI FU CTIO S + A D3 to D0 (Pins 15 to 18):
Three-State Data Outputs.
IN (Pin 1):
Positive Analog Input, ±2.5V.
– A OGND (Pin 19):
Digital Ground for Output Drivers. Tie
IN (Pin 2):
Negative Analog Input, ±2.5V. to AGND.
VREF (Pin 3):
2.50V Reference Output.
NAP/SLP (Pin 20):
Power Shutdown Mode. Selects the
REFCOMP (Pin 4):
4.06V Reference Output. Bypass to mode invoked by the SHDN pin. Low selects Sleep AGND using 10µF tantalum in parallel with 0.1µF or mode and high selects quick wake-up Nap mode. 10µF ceramic.
SHDN (Pin 21):
Power Shutdown Input. A low logic
AGND (Pin 5):
Analog Ground. level will invoke the Shutdown mode selected by the
D11 to D4 (Pins 6 to 13):
Three-State Data Outputs. NAP/SLP pin.
DGND (Pin 14):
Digital Ground for Internal Logic. Tie to
RD (Pin 22):
Read Input. This enables the output AGND. drivers when CS is low. 6