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参数资料
| 型号： | THS10082IDAG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| 封装： | GREEN, PLASTIC, TSSOP-32 |
| 文件页数： | 33/37页 |
| 文件大小： | 350K |
| 代理商： | THS10082IDAG4 |
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THS10082
SLAS254B MAY 2002 REVISED NOVEMBER 2002
www.ti.com
5
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
AINP
30
I
Analog input, single-ended or positive input of differential channel A
AINM
29
I
Analog input, single-ended or negative input of differential channel A
AVDD
23
I
Analog supply voltage
AGND
24
I
Analog ground
BVDD
7
I
Digital supply voltage for buffer
BGND
8
I
Digital ground for buffer
CONV_CLK
(CONVST)
15
I
Digital input. This input is used to apply an external conversion clock in the continuous conversion mode. In
the single conversion mode, this input functions as the conversion start (CONVST) input. A high-to-low
transition on this input holds simultaneously the selected analog input channels and initiates a single
conversion of all selected analog inputs.
CS0
22
I
Chip select input (active low)
CS1
21
I
Chip select input (active high)
DATA_AV
16
O
Data available signal, which can be used to generate an interrupt for processors and as a level information
of the internal FIFO. This signal can be configured to be active low or high and can be configured as a static
level or pulse output. See Table 14.
DGND
17
I
Digital ground. Ground reference for digital circuitry.
DVDD
18
I
Digital supply voltage
D0–D9
1–6, 9–12
I/O/Z
Digital input, output; D0 = LSB
RA0
13
I
Digital input. RA0 is used as an address line (RA0) for the control register. This is required for writing to
control register 0 and control register 1. See Table 8.
RA1
14
I
Digital input. RA1 is used as an address line (RA1) for the control register. This is required for writing to
control register 0 and control register 1. See Table 8.
OV_FL
32
O
Overflow output. Indicates whether an overflow in the FIFO occurred. OV_FL is set to active high level if an
overflow occurs. It is set back to low level with a reset of the THS10082 or a reset of the FIFO.
REFIN
28
I
Common-mode reference input for the analog input channels. It is recommended that this pin be
connected to the reference output REFOUT.
REFP
26
I
Reference input, requires a bypass capacitor of 10
F to AGND in order to bypass the internal reference
voltage. An external reference voltage at this input can be applied. This option can be programmed through
control register 0. See Table 9.
REFM
25
I
Reference input, requires a bypass capacitor of 10
F to AGND in order to bypass the internal reference
voltage. An external reference voltage at this input can be applied. This option can be programmed through
control register 0. See Table 9.
RESET
31
I
Hardware reset of the THS10082. Sets the control register to default values.
REFOUT
27
O
Analog fixed reference output voltage of 2.5 V. Sink and source capability of 250
A. The reference output
requires a capacitor of 10
F to AGND for filtering and stability.
RD(1)
19
I
The RD input is used only if the WR input is configured as a write only input. In this case, it is a digital input,
active low as a data read select from the processor. See timing section.
WR (R/W)(1)
20
I
This input is programmable. It functions as a read-write input (R/W) and can also be configured as a
write-only input (WR), which is active low and used as data write select from the processor. In this case, the
RD input is used as a read input from the processor. See timing section.
(1) The start conditions of RD and WR (R/W) are unknown. The first access to the ADC has to be a write access to initialize the ADC.
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相关代理商/技术参数 |
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| THS1009 | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
| THS1009CDA | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
| THS1009CDAG4 | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
| THS1009CDAR | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
| THS1009CDARG4 | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER |
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