參數(shù)資料
型號(hào)： ADS5271
元件分類： ADC
英文描述： 8-Channel, 12-Bit, 50MSPS ADC with Serial LVDS Interface
中文描述： 8通道，12位，50 MSPS的串行LVDS接口模數(shù)轉(zhuǎn)換器
文件頁(yè)數(shù)： 3/19頁(yè)
文件大?。?/td> 537K
代理商： ADS5271
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SBAS313A JUNE 2004 REVISED JUNE 2004
www.ti.com
3
ELECTRICAL CHARACTERISTICS
TMIN = 40
°
C, and TMAX = +85
°
C. Typical values are at TA = 25
°
C, clock frequency = maximum specified, 50% clock duty cycle, AVDD = 3.3V,
LVDD = 3.3V, 1dBFS, internal voltage reference, and LVDS buffer current at 3.5mA per channel, unless otherwise noted.
ADS5271
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY
No Missing Codes
Differential Nonlinearity
Integral Nonlinearity
Offset Error
(1)
Offset Temperature Coefficient
Fixed Attenuation in Channel
(2)
Variable Attenuation in Channel
(3)
Gain Error
(4)
Gain Temperature Coefficient
(5)
Assured
±
0.5
±
0.6
±
0.2
14
1
0.2
±
1.0
44
DNL
INL
f
IN
= 5MHz
f
IN
= 5MHz
0.9
2.0
0.75
0.9
2.0
0.75
LSB
LSB
%FS
ppm/
°
C
%FS
%FS
%FS
ppm/
°
C
2.5
2.5
POWER SUPPLY
I
CC
Total Supply Current
Analog Supply Current
Digital Output Driver Supply Current
Power Dissipation
Power Down
V
IN
= FS, F
IN
= 5MHz
V
IN
= FS, F
IN
= 5MHz
290
232
58
957
90
mA
mA
mA
mW
mW
I(AVDD)
I(LVDD)
V
IN
= FS, F
IN
= 5MHz, LVDS Into 100
Load
1000
Clock Running
REFERENCE VOLTAGES
VREF
T
VREF
B
V
CM
Reference Top (internal)
Reference Bottom (internal)
Common-Mode Voltage
V
CM
Output Current
(6)
Reference Top (external)
Reference Bottom (external)
Reference Input Resistance
(7)
1.95
0.95
1.45
2.0
1.0
1.5
±
2.0
2.05
1.05
1.55
V
V
V
±
50mV Change in Voltage
mA
V
V
mA
VREF
T
VREF
B
1.875
1.125
2.5
ANALOG INPUT
Differential Input Capacitance
Analog Input Common-Mode Range
Differential Input Voltage Range
7.0
pF
V
V
PP
V
CM
±
0.05
1.5
2.02
Voltage Overload Recovery Time
Differential Input Signal at 4V
PP
Recovery to Within 1% of Code
3dBFS
4.0
CLK Cycles
Input Bandwidth
300
MHz
DIGITAL DATA OUTPUTS
Data Bit Rate
240
600
MBPS
SERIAL INTERFACE
SCLK
V
IN
LOW
V
IN
HIGH
Serial Clock Input Frequency
Input Low Voltage
Input High Voltage
Input Current
Input Pin Capacitance
20
0.6
VDD
±
10
MHz
V
V
μ
A
pF
0
2.1
5.0
(1)
Offset error is the deviation of the average code from mid-code for a zero input. Offset error is expressed in terms of % of full scale.
(2)
Fixed attenuation in the channel arises due to a fixed attenuation of about 1% in the sample-and-hold amplifier. When the differential voltage at the analog input pins are
changed from V
REF
to +V
REF
, the swing of the output code is expected to deviate from the full-scale code (4096LSB) by the extent of this fixed attenuation.
NOTE: V
REF
is defined as (REF
T
REF
B
).
(3)
Variable attenuation in the channel refers to the attenuation of the signal in the channel over and above the fixed attenuation.
(4)
The reference voltages are trimmed at production so that (VREF
T
VREF
B
) is within
±
25mV of the ideal value of 1V. It does not include fixed attenuation.
(5)
The gain temperature coefficient refers to the temperature coefficient of the attenuation in the channel. It does not account for the variation of the reference voltages with
temperature.
(6)
V
CM
provides the common-mode current for the inputs of all eight channels when the inputs are AC-coupled. The V
CM
output current specified is the additional drive of
the V
CM
buffer if loaded externally.
(7)
Average current drawn from the reference pins in the external reference mode.
相關(guān)PDF資料
PDF描述
ADS5271IPFP 8-Channel, 12-Bit, 50MSPS ADC with Serial LVDS Interface
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS5271EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS5271 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
ADS5271IPFP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8Ch 12Bit 40/50MSPS w/Ser LVDS Interface 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
ADS5271IPFPG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8Ch 12Bit 40/50MSPS w/Ser LVDS Interface 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
ADS5271IPFPT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8Ch 12Bit 40/50MSPS w/Ser LVDS Interface 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
ADS5271IPFPTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8Ch 12Bit 40/50MSPS w/Ser LVDS Interface 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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