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参数资料
| 型号： | EVAL-AD7193EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/57页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR AD7193 |
| 设计资源： | EVAL-AD7193 Schematic AD7193 Gerber Files |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7193 |
| 已供物品： | 板，线缆 |
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AD7193
Data Sheet
Rev. D | Page 12 of 56
Pin No.
Mnemonic
Description
14
AIN4
Analog Input. This pin can be configured as the negative input of a fully differential input pair when used
with AIN3 or as a pseudo differential input when used with AINCOM.
15
AIN5
Analog Input. This pin can be configured as the positive input of a fully differential input pair when used with
AIN6 or as a pseudo differential input when used with AINCOM.
16
AIN6
Analog Input. This pin can be configured as the negative input of a fully differential input pair when used
with AIN5 or as a pseudo differential input when used with AINCOM.
17
AIN7
Analog Input. This pin can be configured as the positive input of a fully differential input pair when used with
AIN8 or as a pseudo differential input when used with AINCOM.
18
AIN8
Analog Input. This pin can be configured as the negative input of a fully differential input pair when used
with AIN7 or as a pseudo differential input when used with AINCOM.
19
REFIN1(+)
Positive Reference Input. An external reference can be applied between REFIN1(+) and REFIN1(). REFIN1(+)
can lie anywhere between AVDD and AGND + 1 V. The nominal reference voltage, (REFIN1(+) REFIN1()), is
AVDD, but the part functions with a reference from 1 V to AVDD.
20
REFIN1()
Negative Reference Input. This reference input can lie anywhere between AGND and AVDD 1 V.
21
BPDSW
Bridge Power-Down Switch to AGND.
22
AGND
Analog Ground Reference Point.
23
DGND
Digital Ground Reference Point.
24
AVDD
Analog Supply Voltage, 3 V to 5.25 V. AVDD is independent of DVDD. Therefore, DVDD can be operated at 3 V with
AVDD at 5 V or vice versa.
25
DVDD
Digital Supply Voltage, 2.7 V to 5.25 V. DVDD is independent of AVDD. Therefore, AVDD can be operated at 3 V
with DVDD at 5 V or vice versa.
26
SYNC
Logic input that allows for synchronization of the digital filters and analog modulators when using a number
of AD7193 devices. While SYNC is low, the nodes of the digital filter, the filter control logic, and the calibration
control logic are reset, and the analog modulator is also held in its reset state. SYNC does not affect the digital
interface but does reset RDY to a high state if it is low. SYNC has a pull-up resistor internally to DVDD.
27
DOUT/RDY
Serial Data Output/Data Ready Output. DOUT/RDY serves a dual purpose. It functions as a serial data output
pin to access the output shift register of the ADC. The output shift register can contain data from any of the
on-chip data or control registers. In addition, DOUT/RDY operates as a data ready pin, going low to indicate
the completion of a conversion. If the data is not read after the conversion, the pin goes high before the next
update occurs. The DOUT/RDY falling edge can be used as an interrupt to a processor, indicating that valid
data is available. With an external serial clock, the data can be read using the DOUT/RDY pin. With CS low, the
data-/control-word information is placed on the DOUT/RDY pin on the SCLK falling edge and is valid on the
SCLK rising edge.
28
DIN
Serial Data Input to the Input Shift Register on the ADC. Data in this shift register is transferred to the control
registers in the ADC, with the register selection bits of the communications register identifying the
appropriate register.
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