哪位大哥知道一款ADC的芯片，采样率大于10M，量化位数16bit，

只看该作者 · 2009-3-17 15:08

俺是新人，请大家帮忙推荐一下芯片可以吗

求一款ADC的芯片，采样率大于10M，量化位数16bit，多通道，最好是差分输入

用来测电流尖峰的

只看该作者 · 2009-3-17 15:14

小女子只知道芯片要求，不知道芯片名字

是不是大海捞针啊....

如果有见过这种芯片的告诉俺一下

1万 · 2009-3-17 20:41

3万 · 2009-3-17 21:22

只看该作者 · 2009-3-17 21:25

你去TI网站看一下,大多数都是12BIT,说不定对华不售....

1万 · 2009-3-17 21:51

只看该作者 · 2009-3-17 22:19

8 Results http://focus.ti.com/graphics/shared/spacer.gifhttp://focus.ti.com/graphics/shared/spacer.gif

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Part Number	Status	Resolution (Bits)	Thermal Shutdown	Architecture	Reference Mode	# Input Channels	Power Consumption (typ) (mW)	SINAD (dB)	Sample Rate (max)	Serial Interface	SNR (dB)	SFDR (dB)	DNL (max) (+/-LSB)	INL (max) (+/-LSB)	No Missing Codes (Bits)	ENOB (Bits)	No. of Supplies	Analog Voltage AV/DD (min) (V)	Analog Voltage AV/DD (max) (V)	Logic Voltage DV/DD (min) (V)	Logic Voltage DV/DD (max) (V)	Input Configuration Range	Differential Inputs	Internal Reference Buffer	LVDS	Parallel Interface	Serial SPI Interface	Rating	Pin/Package	Approx. Price (US$)	http://focus.ti.com/graphics/shared/spacer.gif Description
http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow-red.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif	http://focus.ti.com/graphics/shared/uparrow.gif http://focus.ti.com/graphics/shared/downarrow.gif
ADS5562	ACTIVE	16	No	Pipeline	Int and Ext	1	865	80.5	80MSPS		84	85	0.95	8.5	16	13.1	2	3.0	3.6	3.0	3.6	3.6Vpp	Yes		Yes	Yes	Yes	Catalog	48QFN	60.45 \| 100u	16-bit 80MSPS Low Power ADC with Selectable LVDS/CMOS Outputs	ADS5560	ACTIVE	16	No	Pipeline	Int and Ext	1	674	83.2	40MSPS	84.3	90	0.95	8.5	16	13.5	2	3.0	3.6	3.0	3.6	3.6 Vpp	Yes	Yes	Yes	Yes	Catalog	48QFN	39.75 \| 100u	16-bit 40MSPS Low Power ADC with Selectable LVDS/CMOS Outputs	ADS5485	NEW ACTIVE	16	No	Pipeline	Int and Ext	1	2160	73.7	200MSPS	75	87	1	10	16	11.95	2	4.75	5.25	3	3.6	3.0 Vpp	Yes	Yes	Yes	Yes	Catalog	64VQFN	123.70 \| 100u	16-bit, 200 MSPS ADC with buffered inputs	ADS5484	NEW ACTIVE	16	No	Pipeline	Int and Ext	1	2160	74.3	170MSPS	Yes	75.7	87	1	10	16	12.05	2	4.75	5.25	3	3.6	3.0 Vpp	Yes	Yes	Yes	Catalog	64VQFN	98.70 \| 100u	16-bit, 170 MSPS ADC with buffered inputs	ADS5483	ACTIVE	16	No	Pipeline	Int and Ext	1	2100	77.8	135MSPS	79	97	0.5	3	16	12.63	2	4.75	5.25	3	3.6	3.0 Vpp	Yes	Yes	Yes	Catalog	64VQFN	81.25 \| 100u	16-bit 135MSPS ADC with buffered inputs	ADS5482	NEW ACTIVE	16	No	Pipeline	Int and Ext	1	2100	79.3	105MSPS	80.5	98	0.5	3	16	12.88	2	4.75	5.25	3	3.6	3.0 Vpp	Yes	Yes	Catalog	64VQFN	70.85 \| 100u	16-bit, 105MSPS High Speed ADCs	ADS5481	NEW ACTIVE	16	No	Pipeline	Int and Ext	1	2100	79.5	80MSPS	80.6	98	0.5	3	16	12.91	2	4.75	5.25	3	3.6	3.0 Vpp	Yes	Yes	Catalog	64VQFN	60.45 \| 100u	16-bit 80MSPS ADC With Buffered Analog Input	ADS1610	ACTIVE	16	No	Delta-Sigma	Ext	1	960	83	10MSPS	83	109	0.5	0.4	16	2	4.9	5.1	2.7	3.6	Vref	Yes	Yes	Catalog	64HTQFP	21.35 \| 1ku	16-Bit, 10MSPS Delta-Sigma Analog-to-Digital Converter

2万 · 2009-3-17 22:30

1万 · 2009-3-17 22:53

不出这个AD的解析度！以2。5V的基准算，也就是38uv 噪声波动！
这个精度，除了电子称，录音前置用得多以外，应用到一般的产品，
根本就是浪费！！

只看该作者 · 2009-3-18 08:47

忒吓人了,这样的芯片给我也没用

2万 · 2009-3-18 08:55

哪位大哥知道一款ADC的芯片，采样率大于10M，量化位数16bit，

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re

这样的ADC贵的吓人呀

估计是对华禁售的……

可能有

12位和16位不是一个概念

ADC

不会便宜

如果你的PCB信噪比没有达到100DB 根本就发挥

16位精度

汗,,,不是毕业设计写论文吧...

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