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參數(shù)資料
| 型號： | ADC12181EVAL |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 12-Bit, 5 MHz Self-Calibrating, Pipelined A/D Converter |
| 中文描述： | 12位，5兆赫自校準，流水線A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 322K |
| 代理商： | ADC12181EVAL |
Pin Descriptions and Equivalent Circuits #2
No.
Symbol
Equivalent Circuit
Description
2
V
IN
Analog signal input. With a 2.0V reference voltage,
input signal voltages in the range of 0 to 2.0 Volts
will be converted. See section 1.2.
Reference voltage input. This pin should be driven
from an accurate, stable reference source in the
range of 1.8 to 2.2V and bypassed to a low-noise
analog ground with a monolithic ceramic capacitor,
nominally 0.01μF. See section 1.1.
1
V
REF
32
V
RP
Positive reference bypass pin. Bypass with a 0.1μF
capacitor. Do not connect anything else to this pin.
See section 3.1
31
V
RM
Reference midpoint bypass pin. Bypass with a 0.1μF
capacitor. Do not connect anything else to this pin.
See section 3.1
30
V
RN
Negative reverence bypass pin. Bypass with a 0.1μF
capacitor. Do not connect anything else to this pin.
See section 3.1
10
CLOCK
Sample Clock input, TTL compatible. Maximum
amplitude should not exceed 3V.
Calibration request, active High. Calibration cycle
starts when CAL returns to logic low. CAL is ignored
during power-down mode. See section 2.2.
Power-down, active High, ignored during calibration
cycle. See paragraph 2.4
Output enable control, active low. When this pin is
high the data outputs are in Tri-state
(high-impedance) mode.
8
CAL
7
PD
11
OE
28
OR
Over range indicator. This pin is at a logic High for
V
IN
<
0 or for V
IN
>
V
REF
.
29
READY
Device ready indicator, active High. This pin is at a
logic Low during a calibration cycle and while the
device is in the power down mode.
A
www.national.com
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| ADC121C021CIMK | 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 結構: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC121C021CIMK/NOPB | 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 結構: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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