Datasheet LTC2451 (Analog Devices) - 7
| Fabricante | Analog Devices |
| Descripción | Ultra-Tiny, 16-Bit ΔΣ ADC with I2C Interface |
| Páginas / Página | 20 / 7 — PIN FUNCTIONS. GND (Pin 1, 5):. SCL (Pin 7):. REF– (Pin 2), REF+ (Pin … |
| Formato / tamaño de archivo | PDF / 1.3 Mb |
| Idioma del documento | Inglés |
PIN FUNCTIONS. GND (Pin 1, 5):. SCL (Pin 7):. REF– (Pin 2), REF+ (Pin 3):. SDA (Pin 8):. CC (Pin 4):. Exposed Pad (Pin 9):
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Versión de texto del documento
LTC2451
PIN FUNCTIONS GND (Pin 1, 5):
Ground. Connect to a ground plane through
SCL (Pin 7):
Serial Clock Input of the I2C Interface. The a low impedance connection. LTC2451 can only act as a slave and the SCL pin only
REF– (Pin 2), REF+ (Pin 3):
Differential Reference Input. accepts an external serial clock. Data is shifted into the The voltage on these pins can have any value between SDA pin on the rising edges of SCL and output through GND and V the SDA pin on the falling edges of SCL. CC as long as the reference positive input, REF+, remains more positive than the negative reference input,
SDA (Pin 8):
Bidirectional Serial Data Line of the I2C In- REF–, by at least 2.5V. The differential reference voltage terface. The conversion result is output through the SDA (VREF = REF+ to REF–) sets the full-scale range. pin. The pin is high impedance unless the LTC2451 is in
V
the data output mode. While the LTC2451 is in the data
CC (Pin 4):
Positive Supply Voltage. Bypass to GND (Pin 1) with a 10µF capacitor in parallel with a low series output mode, SDA is an open-drain pull-down (which inductance 0.1µF capacitor located as close to the part requires an external 1.7k pull-up resistor to VCC). as possible.
Exposed Pad (Pin 9):
Ground. Must be soldered to PCB
IN (Pin 6):
Analog Input. IN’s single-ended input range ground. is V – + REF to VREF .
BLOCK DIAGRAM
3 4 REF+ VCC SCL I2C 7 SDA INTERFACE 8 IN 16-BIT ∆∑ 6 A/D CONVERTER INTERNAL OSCILLATOR GND REF– 1, 5, 9 2 1 2451 BD 2451fg 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Input And References Power Requirements I2C Inputs And Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
PIN FUNCTIONS GND (Pin 1, 5):
Ground. Connect to a ground plane through
SCL (Pin 7):
Serial Clock Input of the I2C Interface. The a low impedance connection. LTC2451 can only act as a slave and the SCL pin only
REF– (Pin 2), REF+ (Pin 3):
Differential Reference Input. accepts an external serial clock. Data is shifted into the The voltage on these pins can have any value between SDA pin on the rising edges of SCL and output through GND and V the SDA pin on the falling edges of SCL. CC as long as the reference positive input, REF+, remains more positive than the negative reference input,
SDA (Pin 8):
Bidirectional Serial Data Line of the I2C In- REF–, by at least 2.5V. The differential reference voltage terface. The conversion result is output through the SDA (VREF = REF+ to REF–) sets the full-scale range. pin. The pin is high impedance unless the LTC2451 is in
V
the data output mode. While the LTC2451 is in the data
CC (Pin 4):
Positive Supply Voltage. Bypass to GND (Pin 1) with a 10µF capacitor in parallel with a low series output mode, SDA is an open-drain pull-down (which inductance 0.1µF capacitor located as close to the part requires an external 1.7k pull-up resistor to VCC). as possible.
Exposed Pad (Pin 9):
Ground. Must be soldered to PCB
IN (Pin 6):
Analog Input. IN’s single-ended input range ground. is V – + REF to VREF .
BLOCK DIAGRAM
3 4 REF+ VCC SCL I2C 7 SDA INTERFACE 8 IN 16-BIT ∆∑ 6 A/D CONVERTER INTERNAL OSCILLATOR GND REF– 1, 5, 9 2 1 2451 BD 2451fg 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Input And References Power Requirements I2C Inputs And Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts