參數(shù)資料
型號(hào)： ADS5500
英文描述： 14-Bit, 80MSPS Analog-to-Digital Converter
中文描述： 14位，80Msps模擬到數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 20/30頁(yè)
文件大?。?/td> 401K
代理商： ADS5500
SBAS308A MAY 2004 REVISED MARCH 2005
www.ti.com
20
APPLICATION INFORMATION
THEORY OF OPERATION
The ADS5542 is a low-power, 14-bit, 80MSPS, CMOS,
switched capacitor, pipeline ADC that operates from a
single 3.3V supply. The conversion process is initiated
by a falling edge of the external input clock. Once the
signal is captured by the input S&H, the input sample is
sequentially converted by a series of small resolution
stages, with the outputs combined in a digital correction
logic block.
Both the rising and the falling clock edges
are used to propagate the sample through the pipeline
every half clock cycle. This process results in a data
latency of 16.5 clock cycles, after which the output data
is available as a 14-bit parallel word, coded in either
straight offset binary or binary two’s complement
format.
INPUT CONFIGURATION
The analog input for the ADS5542 consists of a
differential sample-and-hold architecture implemented
using a switched capacitor technique, shown in
Figure 37.
R
3
R
1a
L
1
L
1
, L
2
: 6nH
10nH effective
R
1a
, R
1b
: 5
8
C
1a
, C
1b
: 2.2pF
2.6pF
CP
1
, CP
2
: 2.5pF
3.5pF
CP
3
, CP
4
, : 1.2pF
1.8pF
C
A
: 0.8pF
1.2pF
R
: 80
to 120
Switches: S
1a
, S
: On Resistance: 35
50
S
2
: On Resistance: 7.5
15
S
, S
: On Resistance: 40
60
All switches Off Resistance: 10G
L
2
R
1b
C
1a
S
1a
S
1b
S
3a
S
3b
S
2
C
1b
C
A
CP
1
CP
3
VINCM
1V
CP
4
CP
2
INP
INM
NOTE:All switches are ON during sampling phase, which is approximately one half of a clock period.
Figure 37. Analog Input Stage
相關(guān)PDF資料
PDF描述
ADS5521 14-Bit, 80MSPS Analog-to-Digital Converter
ADS5522 14-Bit, 80MSPS Analog-to-Digital Converter
ADS5541 MOSFET, N SC-75AMOSFET, N SC-75A; Transistor type:MOSFET; Transistor polarity:N; Voltage, Vds max:20V; Case style:SC-75A; Current, Id cont:0.14A; Current, Idm pulse:0.5A; Power, Pd:0.25W; Resistance, Rds on:10R; SMD:1; Depth,
ADS5542 14-Bit, 80MSPS Analog-to-Digital Converter
ADS5520 14-Bit, 80MSPS Analog-to-Digital Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS5500-EP 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-BIT 125-MSPS Analog-to-digital Converter
ADS5500EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS5500 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS5500IPAP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 125MSPS 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
ADS5500IPAP 制造商:Texas Instruments 功能描述:IC 14BIT ADC 125MSPS HTQFP64 制造商:Texas Instruments 功能描述:IC, 14BIT ADC, 125MSPS, HTQFP64
ADS5500IPAPG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 125MSPS 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
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