參數(shù)資料
型號： ADS8507I
英文描述： 16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
中文描述： 16位40 kSPS的低功耗采樣模擬到數(shù)字轉(zhuǎn)換的內(nèi)部基準，并行/串行接口
文件頁數(shù)： 3/32頁
文件大小： 738K
代理商： ADS8507I
www.ti.com
ADS8507
SLAS381–DECEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
At T
= -40°C to 85°C, f
= 40 kHz, V
DIG
= V
ANA
= 5 V, and using internal reference and fixed resistors, (see
Figure 43
)
unless otherwise specified.
ADS8507I
ADS8507IB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
DNL
Differential linearity error
-2
3
-1
1.5
LSB
No missing codes
15
16
Bits
Transition noise
(2)
0.8
0.8
LSB
Gain Error
±0.2
±0.1
%
Full scale error
(3)(4)
-0.5
0.5
-0.25
0.25
%
Full scale error drift
±7
±5
ppm/°C
Full scale error
(3)(4)
Ext. 2.5-V Ref
-0.5
0.5
-0.25
0.25
%
Full scale error drift
Ext. 2.5-V Ref
±0.5
±0.5
ppm/°C
Bipolar zero error
(3)
±10 V Range
-10
10
-5
5
mV
Bipolar zero error drift
±10 V Range
±0.5
±0.5
ppm/°C
Unipolar zero error
(5)
0 V to 5 V, 0 V to 4 V Ranges
-3
3
-3
3
mV
Unipolar zero error drift
0 V to 5 V, 0 V to 4 V Ranges
±0.5
±0.5
ppm/°C
Recovery time to rated accuracy from
power down
(6)
2.2-μF Capacitor to CAP
1
1
ms
Power supply sensitivity
(V
DIG
= V
ANA
= V
S
)
AC ACCURACY
+4.75 V < V
S
< +5.25 V
±8
±8
LSB
SFDR
Spurious-free dynamic range
f
IN
= 1 kHz,
±
10 V
f
IN
= 1 kHz,
±
10 V
f
IN
= 1 kHz,
±
10 V
-60 dB Input
90
100
96
102
dB
(7)
THD
Total harmonic distortion
-100
-90
-100
-96
dB
83
88
87
89.9
SINAD
Signal-to-(noise+distortion)
dB
30
32
SNR
Signal-to-noise
83
88
87
89.9
dB
Usable bandwidth
(8)
f
IN
= 1 kHz,
±
10 V
130
130
kHz
Full-power bandwidth (-3 dB)
600
600
kHz
SAMPLING DYNAMICS
Aperture delay
40
40
ns
Aperture jitter
20
20
ps
Transient response
FS Step
5
5
μs
Overvoltage recovery
(9)
750
750
ns
REFERENCE
Internal reference voltage
No load
2.48
2.5
2.52
2.48
2.5
2.52
V
Internal reference source current (must
use external buffer)
1
1
μA
Internal reference drift
8
8
ppm/°C
External reference voltage range for
specified linearity
2.3
2.5
2.7
2.3
2.5
2.7
V
External reference current drain
Ext. 2.5-V Ref
100
100
μA
DIGITAL INPUTS
V
IL
V
IH
I
IL
Low-level input voltage
-0.3
+0.8
-0.3
+0.8
V
High-level input voltage
2.0
V
D
+0.3 V
2.0
V
D
+0.3 V
V
Low-level input current
V
IL
= 0 V
±10
±10
μA
(2)
(3)
(4)
Typical rms noise at worst case transitions.
As measured with fixed resistors, see
Figure 43
. Adjustable to zero with external potentiometer.
Full scale error is the worst case of -Full Scale or +Full Scale untrimmed 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.
As measured with fixed resistors, see
Figure 43
. Adjustable to zero with external potentiometer.
This is the time delay after the ADS8507 is brought out of Power-Down mode until all internal settling occurs and the analog input is
acquired to rated accuracy. A Convert command after this delay will yield accurate results.
All specifications in dB are referred to a full-scale input.
Usable bandwidth defined as 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)
(9)
3
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相關(guān)PDF資料
PDF描述
ADS8507IB 16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
ADS8507IBDW 16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
ADS8507IBDWG4 16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
ADS8507IBDWR 16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
ADS8507IBDWRG4 16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS8507IB 制造商:BB 制造商全稱:BB 功能描述:16-BIT 40-KSPS LOW POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PARALLEL/SERIAL INTERFACE
ADS8507IBDW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 40KSPS 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS8507IBDWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 40KSPS 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS8507IBDWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 40KSPS 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS8507IBDWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 40KSPS 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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