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| 型号： | DC1813A-H |
| 厂商： | Linear Technology |
| 文件页数： | 14/28页 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC2364-18 |
| 软件下载： | QuikEval II System |
| 设计资源： | DC1813A Design File DC1813A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval-II™ |
| ADC 的数量： | 1 |
| 位数： | 18 |
| 采样率（每秒）： | 250k |
| 数据接口： | 串行，SPI? |
| 输入范围： | 0 ~ VREF |
| 在以下条件下的电源（标准）： | 3.4mW @ 250kSPS |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2364-18 |
| 已供物品： | 板 |
| 相关产品： | LTC2364HMS-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364HMS-18#PBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364CMS-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364CDE-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16DFN LTC2364IMS-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364IDE-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16DFN LTC2364IMS-18#PBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364IDE-18#PBF-ND - IC ADC 18BIT 250K 1CH 16DFN LTC2364CDE-18#PBF-ND - IC ADC 18BIT SPI/SRL 250K 16DFN LTC2364CMS-18#PBF-ND - IC ADC 18BIT SPI/SRL 250K 16MSOP 更多... |
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LT6202/LT6203/LT6204
21
620234fd
TYPICAL APPLICATIONS
Single-Supply 16-Bit ADC Driver
Figure 5 shows the LT6203 driving an LTC1864 unipolar
16-bit A/D converter. The bottom half of the LT6203 is
in a gain-of-one configuration and buffers the 0V nega-
tive full-scale signal VLOW into the negative input of the
LTC1864. The top half of the LT6203 is in a gain-of-ten
configuration referenced to the buffered voltage VLOW and
drives the positive input of the LTC1864. The input range
of the LTC1864 is 0V to 5V, but for best results the input
range of VIN should be from VLOW (about 0.4V) to about
0.82V. Figure 6 shows an FFT obtained with a 10.1318kHz
coherent input waveform, from 8192 samples with no
windowing or averaging. Spurious free dynamic range is
seen to be about 100dB.
Although the LTC1864 has a sample rate far below the
gain bandwidth of the LT6203, using this amplifier is not
necessarilyacaseofoverkill.Thedesignerisremindedthat
A/D converters have sample apertures that are vanishingly
small (ideally, infinitesimally small) and make demands on
the upstream circuitry far in excess of what is implied by
theinnocent-lookingsamplerate.Inaddition,whenanA/D
converter takes a sample, it applies a small capacitor to
its inputs with a fair amount of glitch energy and expects
the voltage on the capacitor to settle to the true value very
quickly. Finally, the LTC1864 has a 20MHz analog input
bandwidthandcanbeusedinundersamplingapplications,
again requiring a source bandwidth higher than Nyquist.
–
+
–
+
–
+
LTC1864
16-BIT
250ksps
5V
SERIAL
DATA
OUT
C1
470pF
R3
100
R4
100
R1
1k
R2
110
VIN = 0.6VDC
±200mVAC
VLOW = 0.4VDC
1/2 LT6203
LT6202/03/04 F05
Figure 5. Single-Supply 16-Bit ADC Driver
FREQUENCY (kHz)
0
SFDR
(dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
37.5
62.5
100
LT6202/03/04 F06
12.5 25
50
75 82.5
112.5 125
fS = 250ksps
fIN = 10.131836kHz
Figure 6. FFT Showing 100dB SFDR
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1814A-A | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-1 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-1 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4274A-1, Kit Application Type:Power Management, Application Sub Type:Power Over Ethernet (POE) |
| DC1814A-B | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-2 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:LTC4274A, LTPOE++ PSE CTRL, EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-2 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Te 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-2 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4274A-2, Kit Application Type:Power Management, Application Sub Type:Power Over Ethernet (POE) |
| DC1814A-C | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-3 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-3 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Te 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-3 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4274A-3, Kit Application Type:Power Management, Application Sub Type:Power Over Ethernet (POE) |
| DC1814A-D | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-4 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-4 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Te |
| DC1815A-A | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4266A-1 |
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