參數(shù)資料
型號(hào)： ADS8509
英文描述： 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
中文描述： 16位250 ksps的串行CMOS采樣模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 3/26頁(yè)
文件大小： 693K
代理商： ADS8509
www.ti.com
ELECTRICAL CHARACTERISTICS
At T
A
= -40°C to 85°C, f
s
= 250 kHz, V
DIG
= V
ANA
= 5 V, using internal reference and 0.1%, 0.25 W fixed resistors (See
Figure 29
and
Figure 30
) (unless otherwise specified)
ADS8509
SLAS324A–OCTOBER 2004–REVISED JUNE 2005
ADS8509I
ADS8509IB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
Resolution
16
16
Bits
ANALOG INPUT
Voltage ranges
(1)
Impedance
(1)
Capacitance
50
50
pF
THROUGHPUT SPEED
Conversion cycle
Acquire and convert
4
4
μs
Throughput rate
250
250
kHz
DC ACCURACY
INL
Integral linearity error
-3
3
-2
2
LSB
(2)
DNL
Differential linearity error
-2
2
-1
1
LSB
No missing codes
15
16
Bits
Transition noise
(3)
1
1
LSB
±10 V range
Int. Ref. with 0.1% external
fixed resistors
-0.5
0.5
-0.5
0.5
Full-scale
error
(4)(5)
%FSR
All other ranges
-0.5
0.5
-0.5
0.5
Full-scale error drift
Int. Ref.
±7
±7
ppm/°C
±10 V range
Ext. Ref. with 0.1% external
fixed resistors
-0.5
0.5
-0.5
0.5
Full-scale
error
(4)(5)
%FSR
All other ranges
-0.5
0.5
-0.5
0.5
Full-scale error drift
Ext. Ref.
±2
±2
ppm/°C
Bipolar zero error
(4)
-10
10
-5
5
mV
Bipolar zero error drift
±0.4
±0.4
ppm/°C
10 V range
-5
5
-5
5
Unipolar zero
error
(4)
mV
4 V and 5 V
range
-3
3
-3
3
Unipolar zero error drift
±2
±2
ppm/°C
Recovery to rated accuracy after
power down
1-μF Capacitor to CAP
1
1
ms
Power supply sensitivity
(V
DIG
= V
ANA
= V
D
)
AC ACCURACY
-8
8
-8
8
+4.75 V < V
D
< +5.25 V
LSB
SFDR
Spurious-free dynamic range
f
I
= 20 kHz
f
I
= 20 kHz
f
I
= 20 kHz
–60-dB Input
90
99
95
99
dB
(6)
THD
Total harmonic distortion
-98
-90
-98
-93
dB
SINAD
83
88
85
88
dB
Signal-to-(noise+distortion)
30
32
dB
SNR
Signal-to-noise ratio
f
I
= 20 kHz
83
88
86
88
dB
Full-power bandwidth
(7)
500
500
kHz
SAMPLING DYNAMICS
Aperture delay
5
5
ns
Transient response
FS Step
2
2
μs
Overvoltage recovery
(8)
150
150
ns
(1)
(2)
(3)
(4)
±10 V, 0 V to 5 V, etc. (see
Table 3
)
LSB means least significant bit. For the ±10-V input range, one LSB is 305 μV.
Typical rms noise at worst case transitions and temperatures.
As measured with fixed resistors shown in
Figure 29
and
Figure 30
. Adjustable to zero with external potentiometer. Factory calibrated
with 0.1%, 0.25 W resistors.
For bipolar input ranges, full-scale error is the worst case of -full-scale or +full-scale uncalibrated deviation from ideal first and last code
transitions, divided by the transition voltage (not divided by the full-scale range) and includes the effect of offset error. For unipolar input
ranges, full-scale error is the deviation of the last code transition divided by the transition voltage. It also includes the effect of offset
error.
All specifications in dB are referred to a full-scale ±10-V input.
Full-power bandwidth is defined as the full-scale input frequency at which signal-to-(noise + distortion) degrades to 60 dB.
Recovers to specified performance after 2 x FS input overvoltage.
(5)
(6)
(7)
(8)
3
相關(guān)PDF資料
PDF描述
ADS8509IBDB 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
ADS8509IBDBR 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
ADS8509IDWRG4 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
ADS8509IBDW 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
ADS8509IBDWR 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS8509EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS8509 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類(lèi)型:ADC 工具用于評(píng)估:ADS130E08 接口類(lèi)型:SPI 工作電源電壓:- 6 V to + 6 V
ADS8509HDB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Hi Temp 15B 250kHz CMOS A/D Cnvtr 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
ADS8509IBDB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz CMOS w/Serial 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
ADS8509IBDBG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz CMOS w/Serial 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
ADS8509IBDBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 250kHz CMOS w/Serial 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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