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參數(shù)資料
| 型號： | ADC12L038CIWM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 3.3V Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | SOP-28 |
| 文件頁數(shù)： | 32/36頁 |
| 文件大?。?/td> | 828K |
| 代理商： | ADC12L038CIWM |
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Application Hints
(Continued)
The assignment of the RS232 port is shown below
B7
X
X
B6
X
X
B5
X
X
B4
CTS
0
B3
X
X
B2
X
X
B1
X
RTS
B0
X
DTR
COM1
Input Address
Output Address
3FE
3FC
A sample program, written in Microsoft
QuickBasic, is
shown on the next page. The program prompts for data
mode select instruction to be sent to the A/D. This can be
found from the Mode Programming table shown earlier. The
data should be entered in “1”s and “0”s as shown in the table
with DI0 first. Next the program prompts for the number of
SCLKs required for the programmed mode select instruction.
For instance, to send all “0”s to the A/D, selects CH0 as the
+input, CH1 as the input, 12-bit conversion, and 13-bit MSB
first data output format (if the sign bit was not turned off by a
previous instruction). This would require 13 SCLK periods
since the output data format is 13 bits. The part powers up
with No Auto Cal, No Auto Zero, 10 CCLK Acquisition Time,
12-bit conversion, data out with sign, 12- or 13-bit MSB First,
power up, and user mode. Auto Cal, Auto Zero, Power UP
and Power Down instructions do not change these default
settings. The following power up sequence should be fol-
lowed:
1.
Run the program
2.
Prior to responding to the prompt apply the power to the
ADC12L038
3.
Respond to the program prompts
It is recommended that the first instruction issued to the
ADC12L038 be Auto Cal (see Section 1.1).
DS011830-45
V
A+
, V
D+
, and V
REF+
on the ADC12L038 each have 0.01 μF and 0.1 μF chip caps, and 10 μF tantalum caps. All logic devices are bypassed with 0.1 μF
Note:
www.national.com
32
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADC12L038CIWM/NOPB | 功能描述:IC ADC 12BIT W/S&H +SIGN 28SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:- |
| ADC12L038CIWMX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System |
| ADC12L063 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 62 MSPS, 354 mW A/D Converter with Internal Sample-and-Hold |
| ADC12L063CIVY | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC12L063CIVY/NOPB | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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