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參數(shù)資料
| 型號： | ADC1115S125HN |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Single 11-bit ADC 125 Msps with Input Buffer CMOS or LVDS DDR digital outputs |
| 封裝： | ADC1115S125HN/C1<SOT618-6 (HVQFN40)|<<http://www.nxp.com/packages/SOT618-6.html<1<Always Pb-free,;ADC1115S125HN/C1<SOT618-6 (HVQFN40)|<<http://www.nxp.com/packages/SOT618 |
| 文件頁數(shù)： | 17/38頁 |
| 文件大?。?/td> | 281K |
| 代理商： | ADC1115S125HN |
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ADC1115S125
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 17 December 2010
17 of 38
NXP Semiconductors
ADC1115S125
11-bit, 125 Msps ADC; input buffer; CMOS or LVDS DDR digital outputs
11.3 System reference and power management
11.3.1
Internal/external references
The ADC1115S125 has a stable and accurate built-in internal reference voltage to adjust
the ADC full-scale. This reference voltage can be set internally via SPI or with pins VREF
and SENSE (programmable in 1 dB steps between 0 dB and
6 dB via control bits
INTREF[2:0] when bit INTREF_EN = logic 1; see
Table 21
). See
Figure 18
to
Figure 21
.
The equivalent reference circuit is shown in
Figure 17
. External reference is also possible
by providing a voltage on pin VREF as described in
Figure 20
.
If bit INTREF_EN is set to logic 0, the reference voltage is determined either internally or
externally as detailed in
Table 11
.
Table 11.
Selection
[1]
The voltage on pin VREF is doubled internally to generate the internal reference voltage.
Fig 17. Reference equivalent schematic
Reference selection
SPI bit
INTREF_EN
0
SENSE pin
VREF pin
Full-scale (p-p)
internal
(
Figure 18
)
internal
(
Figure 19
)
external
(
Figure 20
)
internal via SPI
(
Figure 21
)
AGND
330 pF capacitor to AGND
2 V
0
pin VREF connected to pin SENSE and
via a 330 pF capacitor to AGND
V
DDA(3V)
external voltage between
0.5 V and 1 V
[1]
pin VREF connected to pin SENSE and
via 330 pF capacitor to AGND
1 V
0
1 V to 2 V
1
1 V to 2 V
EXT_ref
EXT_ref
005aaa164
REFAT/
REFBT
REFAB/
REFBB
SENSE
VREF
SELECTION
LOGIC
BANDGAP
REFERENCE
ADC CORE
BUFFER
REFERENCE
AMP
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADC1115S125HN/C1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single 11-bit ADC; 125 Msps with input buffer; CMOS or LVDS DDR digital outputs |
| ADC1115S125HN/C1,5 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC SGL 11b ADC 125MSPS INPUT BUFFER 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 |
| ADC1115S125HN-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 |
| ADC1115S125HN-C18 | 制造商:Integrated Device Technology Inc 功能描述:HVQFN40 - Tape and Reel |
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