參數(shù)資料
型號(hào)： ADC1112D125HN
廠商： NXP Semiconductors N.V.
元件分類： 外設(shè)及接口
英文描述： Dual 11-bit ADC; CMOS or LVDS DDR digital outputs
封裝： ADC1112D125HN/C1<SOT804-3|<<<1<Always Pb-free,;ADC1112D125HN/C1<SOT804-3|<<<1<Always Pb-free,;
文件頁數(shù)： 27/41頁
文件大小： 565K
代理商： ADC1112D125HN
ADC1112D125
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 2 — 3 March 2011
27 of 41
NXP Semiconductors
ADC1112D125
Dual 11-bit ADC: CMOS or LVDS DDR digital outputs
11.5.6
Test patterns
For test purposes, the ADC1112D125 can be configured to transmit one of a number of
predefined test patterns (via bits TESTPAT_SEL[2:0]; see
Table 27
). A custom test pattern
can be defined by the user (TESTPAT_USER[10:3]; see
Table 28
and
TESTPAT_USER[2:0]; see
Table 29
) and is selected when TESTPAT_SEL[2:0] = 101.
The selected test pattern is transmitted regardless of the analog input.
11.5.7
Output codes versus input voltage
Table 16.
V
INAP
V
INAM
/V
INBP
V
INBM
<
1
1.0000000
0.9990234
0.9980469
0.9970703
0.996093
....
0.0019531
0.0009766
0.0000000
+0.0009766
+0.0019531
....
+0.9960938
+0.9970703
+0.9980469
+0.9990234
+1.0000000
> +1
11.6 Serial Peripheral Interface (SPI)
11.6.1
Register description
The ADC1112D125 serial interface is a synchronous serial communications port that
allows easy interfacing with many commonly used microprocessors. It provides access to
the registers that control the operation of the chip.
This interface is configured as a 3-wire type (SDIO as bidirectional pin)
Pin SCLK is the serial clock input and pin CS acts as the serial chip select.
Each read/write operation is initiated by a LOW level on CS. A minimum of three bytes is
transmitted (two instruction bytes and at least one data byte). The number of data bytes is
determined by the value of bits W1 and W2 (see
Table 18
).
Output codes
Offset binary
000 0000 0000
000 0000 0000
000 0000 0001
000 0000 0010
000 0000 0011
000 0000 0100
....
011 1111 1110
011 1111 1111
100 0000 0000
100 0000 0001
100 0000 0010
....
111 1111 1011
111 1111 1100
111 1111 1101
111 1111 1110
111 1111 1111
111 1111 1111
Two’s complement
100 0000 0000
100 0000 0000
100 0000 0001
100 0000 0010
100 0000 0011
100 0000 0100
....
111 1111 1110
111 1111 1111
000 0000 0000
000 0000 0001
000 0000 0010
....
011 1111 1011
011 1111 1100
011 1111 1101
011 1111 1110
011 1111 1111
011 1111 1111
OTRA/OTRB pin
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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參數(shù)描述
ADC1112D125HN/C1,5 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 2IN 125MSPS 66.2dB 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
ADC1112D125HN/C1+551 制造商:NXP Semiconductors 功能描述:Bulk 制造商:NXP Semiconductors 功能描述:0
ADC1112D125HN-C1 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
ADC1112D125HN-C18 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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