參數(shù)資料
型號(hào)： MAX1283BCUE+
廠商： Maxim Integrated Products
文件頁數(shù)： 11/23頁
文件大?。?/td> 0K
描述： IC ADC 12BIT 400KSPS 16-TSSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 96
位數(shù)： 12
采樣率（每秒）： 400k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 8.0mW
電壓電源： 單電源
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 16-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 16-TSSOP
包裝： 管件
輸入數(shù)目和類型： 4 個(gè)單端，單極；4 個(gè)單端，雙極；2 個(gè)偽差分，單極；2 個(gè)偽差分，雙極
MAX1282/MAX1283
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
______________________________________________________________________________________
19
TMS320LC3x Interface
Figure 17 shows an application circuit to interface the
MAX1282/MAX1283 to the TMS320 in external clock
mode. The timing diagram for this interface circuit is
shown in Figure 18.
Use the following steps to initiate a conversion in the
MAX1282/MAX1283 and to read the results:
1) The TMS320 should be configured with CLKX (trans-
mit clock) as an active-high output clock and CLKR
(TMS320 receive clock) as an active-high input clock.
CLKX and CLKR on the TMS320 are connected to
the MAX1282/MAX1283’s SCLK input.
2) The MAX1282/MAX1283’s CS pin is driven low by the
TMS320’s XF_ I/O port to enable data to be clocked
into the MAX1282/MAX1283’s DIN pin.
3) An 8-bit word (1XXXXX11) should be written to the
MAX1282/MAX1283 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.
4) The MAX1282/MAX1283’s SSTRB output is moni-
tored through the TMS320’s FSR input. A falling
edge on the SSTRB output indicates that the conver-
sion is in progress and data is ready to be received
from the device.
5) The TMS320 reads in 1 data bit on each of the next
16 rising edges of SCLK. These data bits represent
the 12-bit conversion result followed by 4 trailing bits,
which should be ignored.
6) Pull CS high to disable the MAX1282/MAX1283 until
the next conversion is initiated.
+3.3V
510k
24k
100k
0.047F
12
REFADJ
MAX1282
MAX1283
Figure 12. MAX1282/MAX1283 Reference-Adjust Circuit
OUTPUT CODE
FULL-SCALE
TRANSITION
11 . . . 111
11 . . . 110
11 . . . 101
00 . . . 011
00 . . . 010
00 . . . 001
00 . . . 000
12
3
0
(COM)
FS
FS - 3/2LSB
FS = VREF + VCOM
ZS = VCOM
INPUT VOLTAGE (LSB)
1LSB =
VREF
4096
Figure 13. Unipolar Transfer Function, Full Scale (FS) =
VREF + VCOM, Zero Scale (ZS) = VCOM
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 = VCOM
+FS - 1LSB
*VCOM
VREF / 2
+ VCOM
FS =
VREF
2
-FS =
+ VCOM
-VREF
2
1LSB =
VREF
4096
≤
Figure 14. Bipolar Transfer Function, Full Scale (FS) =
VREF / 2 + VCOM, Zero Scale (ZS) = VCOM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1283BCUE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 300ksps 3.6V Precision 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
MAX1283BCUE+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 300ksps 3.6V Precision 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
MAX1283BCUE-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
MAX1283BEUE 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
MAX1283BEUE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 300ksps 3.6V Precision 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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