công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
AD7994BRU-1 bảng dữ liệu(PDF) 10 Page - Analog Devices |
|
AD7994BRU-1 bảng dữ liệu(HTML) 10 Page - Analog Devices |
10 / 32 page AD7993/AD7994 Rev. 0 | Page 10 of 32 PIN CONFIGURATION AND PIN FUNCTION DESCRIPTIONS AD7993/ AD7994 TOP VIEW 1 2 3 4 13 14 15 16 SDA SCL VDD AGND VIN4 10 9 VIN2 5 (Not to Scale) ALERT/BUSY 12 11 AS AGND REFIN 6 VIN1 7 VIN3 8 AGND AGND CONVST AGND Figure 3. 16-Lead TSSOP Pin Configuration Table 5. Pin Function Descriptions Pin No. Mnemonic Function 1, 2, 3, 4, 16 AGND Analog Ground. Ground reference point for all circuitry on the AD7993/AD7994. All analog input signals should be referred to this AGND voltage. 5 VDD Power Supply Input. The VDD range for the AD7993/AD7994 is from 2.7 V to 5.5 V. 6 REFIN Voltage Reference Input. The external reference for the AD7993/AD7994 should be applied to this input pin. The voltage range for the external reference is 1.2 V to VDD. A 0.1 µF and 1 µF capacitor should be placed between REFIN and AGND. See Figure 22. 7 VIN1 Analog Input 1. Single-ended analog input channel. The input range is 0 V to REFIN. 8 VIN3 Analog Input 3. Single-ended analog input channel. The input range is 0 V to REFIN. 9 VIN4 Analog Input 4. Single-ended analog input channel. The input range is 0 V to REFIN. 10 VIN2 Analog Input 2. Single-ended analog input channel. The input range is 0 V to REFIN. 11 AS Logic Input. Address select input that selects one of three I2C addresses for the AD7993/AD7994, as shown in Table 6. The device address depends on the voltage applied to this pin. 12 CONVST Logic Input Signal/Convert Start Signal. This is an edge-triggered logic input. The rising edge of this signal powers up the part. The power-up time for the part is 1 µs. The falling edge of CONVST places the track/hold into hold mode and initiates a conversion. A power-up time of at least 1 µs must be allowed for the CONVST high pulse; otherwise, the conversion result is invalid (see the Modes of Operation section). 13 ALERT/BUSY Digital Output, Selectable as an ALERT or BUSY Output Function. When configured as an ALERT, this pin acts as an out-of-range indicator and, if enabled, becomes active when the conversion result violates the DATAHIGH or DATALOW register values. See the Limit Registers section. When configured as a BUSY output, this pin becomes active when a conversion is in progress. Open-drain output. 14 SDA Digital I/O. Serial bus bidirectional data. Open-drain output. External pull-up resistor required. 15 SCL Digital Input. Serial bus clock. External pull-up resistor required. Table 6. I2C Address Selection Part Number AS Pin I2C Address AD7993-0 GND 010 0001 AD7993-0 VDD 010 0010 AD7993-1 GND 010 0011 AD7993-1 VDD 010 0100 AD7993-x1 Float 010 0000 AD7994-0 GND 010 0001 AD7994-0 VDD 010 0010 AD7994-1 GND 010 0011 AD7994-1 VDD 010 0100 AD7994-x 1 Float 010 0000 1 If the AS pin is left floating on any of the AD7993/AD7994 parts, the device address is 010 0000. |
Số phần tương tự - AD7994BRU-1 |
|
Mô tả tương tự - AD7994BRU-1 |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |