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參數(shù)資料
| 型號(hào)： | MAX1082AEUE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | 300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference |
| 中文描述： | 4-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 4.40 MM, 0.65MM PITCH, MO-153AC, TSSOP-16 |
| 文件頁(yè)數(shù)： | 19/24頁(yè) |
| 文件大?。?/td> | 315K |
| 代理商： | MAX1082AEUE |
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M
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 10-Bit ADCs with Internal Reference
______________________________________________________________________________________
19
CLKR (TMS320 receive clock) as an active-high
input clock. CLKX and CLKR on the TMS320 are
connected to the MAX1082/MAX1083’s SCLK input.
The MAX1082/MAX1083’s
CS
pin is driven low by
the TMS320’s XF_ I/O port to enable data to be
clocked into the MAX1082/MAX1083’s DIN pin.
An 8-bit word (1XXXXX11) should be written to the
MAX1082/MAX1083 to initiate a conversion and
place the device into normal operating mode. See
Table 3 to select the proper XXXXX bit values for your
specific application.
The MAX1082/MAX1083’s SSTRB output is moni-
tored through the TMS320’s FSR input. A falling
edge on the SSTRB output indicates that the con-
version is in progress and data is ready to be
2)
3)
4)
received from the device.
The TMS320 reads in 1 data bit on each of the next
16 rising edges of SCLK. These data bits represent
the 10 + 2-bit conversion result followed by 4 trailing
bits, which should be ignored.
Pull
CS
high to disable the MAX1082/MAX1083 until
the next conversion is initiated.
5)
6)
Definitions
Integral Nonlinearity
Integral nonlinearity (INL) is the deviation of the values
from a straight line on an actual transfer function. This
straight line can be a best-straight-line fit or a line
drawn between the endpoints of the transfer function,
once offset and gain errors have been nullified. The
static linearity parameters for the MAX1082/MAX1083
are measured using the best straight-line fit method.
Differential Nonlinearity
Differential nonlinearity (DNL) is the difference between
an actual step width and the ideal value of 1LSB. A
DNL error specification of less than 1LSB guarantees
no missing codes and a monotonic transfer function.
Aperture Width
Aperture width (t
AW
) is the time the T/H circuit requires
to disconnect the hold capacitor from the input circuit
(for instance, to turn off the sampling bridge, and put
the T/H unit in hold mode).
+3.3V
510k
24k
100k
0.047μF
12
REFADJ
MAX1082
MAX1083
Figure 12. MAX1082/MAX1083 Reference-Adjust Circuit
OUTPUT CODE
FULL-SCALE
TRANSITION
11
. . .
111
11
. . .
110
11
. . .
101
00
. . .
011
00
. . .
010
00
. . .
001
00
. . .
000
1
2
3
0
(COM)
FS
FS - 3/2LSB
FS = V
REF
+ V
COM
ZS = V
COM
1LSB = V
REF
INPUT VOLTAGE (LSB)
1024
Figure 13. Unipolar Transfer Function, Full Scale (FS) = V
REF
+ V
COM
, Zero Scale (ZS) = V
COM
011
. . .
111
011
. . .
110
000
. . .
010
000
. . .
001
000
. . .
000
111
. . .
111
111
. . .
110
111
. . .
101
100
. . .
001
100
. . .
000
- FS
COM*
INPUT VOLTAGE (LSB)
OUTPUT CODE
ZS = V
COM
+FS - 1LSB
*V
COM
V
REF
/ 2
+ V
COM
FS
= V
REF
2
-FS =
+ V
COM
-V
REF
2
1LSB = V
REF
1024
Figure 14. Bipolar Transfer Function, Full Scale (FS) =
V
REF
/ 2 + V
COM
, Zero Scale (ZS) = V
COM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1082AEUE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 300/400ksps Sgl-Sply 4Ch Serial 10Bit RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1082AEUE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 300/400ksps Sgl-Sply 4Ch Serial 10Bit RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1082AEUE+TW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Waivered version of the MAX1082AEUE+T RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1082AEUE+W | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Waiver version of the MAX1082AEUE+ RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1082AEUE-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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