參數(shù)資料
型號(hào)： ADS8422IBPFBR
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： ADC
英文描述： 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP48
封裝： 9 X 9 MM, GREEN, PLASTIC, TQFP-48
文件頁(yè)數(shù)： 22/28頁(yè)
文件大?。?/td> 1310K
代理商： ADS8422IBPFBR
www.ti.com
SPECIFICATIONS
SLAS512B – JUNE 2006 – REVISED DECEMBER 2006
T
A = –40°C to 85°C, +VA = 5 V, +VAREG = 5 V to 3 V, +VBD = 5 V to 2.7 V, fSAMPLE = 4 MSPS, Vref = 4.096 V (measured
with internal reference buffer) (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG INPUT
Full-scale input voltage(1)
+IN – (–IN)
–Vref
Vref
V
+IN
–0.2
Vref + 0.2
Absolute input voltage
V
–IN
–0.2
Vref + 0.2
Common-mode input range
(Vref)/2 – 0.2
(Vref)/2
(Vref)/2 + 0.2
V
Input capacitance
30
pF
Input leakage current
1
nA
SYSTEM PERFORMANCE
Resolution
16
Bits
ADS8422I
15
No missing codes
Bits
ADS8422IB
16
ADS8422I
–6
±2
6
LSB
Integral linearity (2)(3)
(16 bit)(2)
ADS8422IB
–2
±1
2
ADS8422I
–2
±0.7
2
LSB
Differential linearity
(16 bit)
ADS8422IB
–1
±0.7
1.5
Offset error
–0.5
±0.25
0.5
mV
Offset error drift
±0.2
ppm/
°C
Gain error(4)(5)
Vref = 4.096 V
–0.1
±0.05
0.1
%FS
Gain error drift
Vref = 4.096 V
±2
ppm/
°C
At dc
81
Common-mode rejection ratio
dB
At code 0000h with [+IN + (–IN)]/2 =
78
512 mVpp at 500 kHz,
Noise
At 0000h output code
40
V RMS
Power supply rejection ratio
At 8000h output code
78
dB
SAMPLING DYNAMICS
Conversion time
0.180
s
Acquisition time
0.070
s
Throughput rate
4
MHz
Aperture delay
3
ns
Aperture jitter
7
ps RMS
Step response
70
ns
Overvoltage recovery
140
ns
(1)
Ideal input span, does not include gain or offset error.
(2)
LSB means least significant bit and is equal to 2VREF/65536.
(3)
This is endpoint INL, not best fit.
(4)
Measured relative to an ideal full-scale input [+IN – (–IN)] of 8.192 V.
(5)
This specification does not include the internal reference voltage error and drift.
3
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS8422IBPFBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IBPFBT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IBPFBTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 Bit MSPS Parallel ADC w/Ref 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
ADS8422IPFBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 4MSPS 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
ADS8422IPFBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 4MSPS 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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