參數(shù)資料
型號(hào)： ADC12010CIVY
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： ADC
英文描述： 12-Bit, 10 MSPS, 160 mW A/D Converter with Internal Sample-and-Hold
中文描述： 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
封裝： LQFP-32
文件頁(yè)數(shù)： 18/22頁(yè)
文件大?。?/td> 606K
代理商： ADC12010CIVY
Applications Information
(Continued)
2.2 OE
The OE pin, when high, puts the output pins into a high
impedance state. When this pin is low the outputs are in the
active state. The ADC12010 will continue to convert whether
this pin is high or low, but the output can not be read while
the OE pin is high.
The OE pin should NOT be used to multiplex devices to-
gether to drive a common bus as this will result in excessive
capacitance on the data output pins, reducing SNR and
SINAD performance of the converter. See Section 3.0.
2.3 PD
The PD pin, when high, holds the ADC12010 in a power-
down mode to conserve power when the converter is not
being used. The power consumption is 25 mW and the
output data pins are undefined in this mode. The data in the
pipeline is corrupted while in the power down mode.
The Power Down Mode Exit Cycle time is determined by the
value of the capacitors on pins 30, 31 and 32. These capaci-
tors loose their charge in the Power Down mode and must
be charged by on-chip circuitry before conversions can be
accurate.
3.0 OUTPUTS
The ADC12010 has 12 TTL/CMOS compatible Data Output
pins. Valid offset binary data is present at these outputs while
the OE and PD pins are low. While the t
time provides
information about output timing, a simple way to capture a
valid output is to latch the data on the falling edge of the
conversion clock (pin 10).
Be very careful when driving a high capacitance bus. The
more capacitance the output drivers must charge for each
conversion, the more instantaneous digital current flows
through V
DR
and DR GND. These large charging current
spikes can cause on-chip noise that can couple into the
analog circuitry, degrading dynamic performance. Adequate
power supply bypassing and careful attention to the ground
plane will reduce this problem. Additionally, bus capacitance
beyond the specified 25 pF/pin will cause t
OD
to increase,
making it difficult to properly latch the ADC output data. The
result could be an apparent reduction in dynamic perfor-
mance.
To minimize noise due to output switching, minimize the load
currents at the digital outputs. This can be done by connect-
ing buffers (74ACQ541, for example) between the ADC out-
puts and any other circuitry. Only one driven input should be
connected to each output pin. Additionally, inserting series
resistors of 47
to 100
at the digital outputs, close to the
ADC pins, will isolate the outputs from trace and other circuit
capacitances and limit the output currents, which could oth-
erwise result in performance degradation. See
Figure 4
.
While the ADC12010 will operate with V
voltages down to
1.8V, t
increases with reduced V
DR
. Be careful of external
timing when using reduced V
DR
.
20051613
FIGURE 4. Simple Application Circuit with Single-Ended to Differential Buffer
A
www.national.com
18
相關(guān)PDF資料
PDF描述
ADC12010CIVYX 12-Bit, 10 MSPS, 160 mW A/D Converter with Internal Sample-and-Hold
ADC12010EVAL 12-Bit, 10 MSPS, 160 mW A/D Converter with Internal Sample-and-Hold
ADC12020CIVYX 12-Bit, 20 MSPS, 185 mW A/D Converter with Internal Sample-and-Hold
ADC12020 NiCd Gas Gauge For High Discharge Rates (>5A), Small Pack Capacities (<2Ah) 16-SOIC 0 to 70
ADC12020CIVY 12-Bit, 20 MSPS, 185 mW A/D Converter with Internal Sample-and-Hold
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADC12010CIVY/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(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
ADC12010CIVYX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 10 MSPS, 160 mW A/D Converter with Internal Sample-and-Hold
ADC12010CIVYX/NOPB 功能描述:IC ADC 12BIT 10MSPS 160MW 32LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)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(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-
ADC12010EVAL 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 10 MSPS, 160 mW A/D Converter with Internal Sample-and-Hold
ADC12010EVAL/NOPB 功能描述:BOARD EVALUATION FOR ADC12010 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*