Datasheet LTC2450-1 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | Easy-to-Use, Ultra-Tiny 16-Bit ΔΣ ADC |
| 页数 / 页 | 20 / 6 — PIN FUNCTIONS. VCC (Pin 1):. SDO (Pin 5):. SCK (Pin 6):. VIN (Pin 2):. … |
| 文件格式/大小 | PDF / 208 Kb |
| 文件语言 | 英语 |
PIN FUNCTIONS. VCC (Pin 1):. SDO (Pin 5):. SCK (Pin 6):. VIN (Pin 2):. GND (Pin 3):. CS (Pin 4):. Exposed Pad (Pin 7):
该数据表的模型线
文件文字版本
LTC2450-1
PIN FUNCTIONS VCC (Pin 1):
Positive Supply Voltage and Converter Refer-
SDO (Pin 5):
Three-State Serial Data Output. SDO is used ence Voltage. Bypass to GND (Pin 3) with a 10μF capacitor for serial data output during the DATA OUTPUT state and in parallel with a low series inductance 0.1μF capacitor can be used to monitor the conversion status. located as close to the part as possible.
SCK (Pin 6):
Serial Clock Input. SCK synchronizes the serial
VIN (Pin 2):
Analog Input Voltage. data output. While digital data is available (the ADC is not in CONVERT state) and CS is LOW (ADC is not in SLEEP
GND (Pin 3):
Ground. Connect to a ground plane through state) a new data bit is produced at the SDO output pin a low impedance connection. following every falling edge applied to the SCK pin.
CS (Pin 4):
Chip Select (Active LOW) Digital Input. A
Exposed Pad (Pin 7):
Ground. The Exposed Pad must be LOW on this pin enables the SDO digital output. A HIGH soldered to the same point as Pin 3. on this pin places the SDO output pin in a high imped- ance state.
FUNCTIONAL BLOCK DIAGRAM
VCC V CS CC REF + SPI SDO INTERFACE 16 BIT ΔΣ SCK V A/D IN CONVERTER INTERNAL REF – OSCILLATOR GND 24501 BD
Figure 1. Functional Block Diagram
24501fc 6
PIN FUNCTIONS VCC (Pin 1):
Positive Supply Voltage and Converter Refer-
SDO (Pin 5):
Three-State Serial Data Output. SDO is used ence Voltage. Bypass to GND (Pin 3) with a 10μF capacitor for serial data output during the DATA OUTPUT state and in parallel with a low series inductance 0.1μF capacitor can be used to monitor the conversion status. located as close to the part as possible.
SCK (Pin 6):
Serial Clock Input. SCK synchronizes the serial
VIN (Pin 2):
Analog Input Voltage. data output. While digital data is available (the ADC is not in CONVERT state) and CS is LOW (ADC is not in SLEEP
GND (Pin 3):
Ground. Connect to a ground plane through state) a new data bit is produced at the SDO output pin a low impedance connection. following every falling edge applied to the SCK pin.
CS (Pin 4):
Chip Select (Active LOW) Digital Input. A
Exposed Pad (Pin 7):
Ground. The Exposed Pad must be LOW on this pin enables the SDO digital output. A HIGH soldered to the same point as Pin 3. on this pin places the SDO output pin in a high imped- ance state.
FUNCTIONAL BLOCK DIAGRAM
VCC V CS CC REF + SPI SDO INTERFACE 16 BIT ΔΣ SCK V A/D IN CONVERTER INTERNAL REF – OSCILLATOR GND 24501 BD
Figure 1. Functional Block Diagram
24501fc 6