參數(shù)資料
型號(hào)： ADS8422IBPFBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 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)： 23/28頁(yè)
文件大?。?/td> 1310K
代理商： ADS8422IBPFBR
www.ti.com
SPECIFICATIONS (Continued)
SLAS512B – JUNE 2006 – REVISED DECEMBER 2006
T
A = –40°C to 85°C, +VA = 5 V, +VAREG = 5.25 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
DYNAMIC CHARACTERISTICS
10 kHz
–114
Total harmonic distortion (THD)(1)
VIN = 8 Vpp
100 kHz
–102
dB
500 kHz
–100
10 kHz
93
Signal to noise ratio (SNR)
VIN = 8 Vpp
100 kHz
92
dB
500 kHz
90
10 kHz
92.5
Signal to noise + distortion (SINAD)
VIN = 8 Vpp
100 kHz
91.5
dB
500 kHz
89.5
10 kHz
116
Spurious free dynamic range (SFDR)
VIN = 8 Vpp
100 kHz
109
dB
500 kHz
106
–3dB Small signal bandwidth
30
MHz
Maximum input frequency, fi(max)(2)
VIN = 8 Vpp
2
MHz
VOLTAGE REFERENCE INPUT
Reference voltage at REFIN, Vref
3.9
4.096
4.15
V
Reference resistance
1000
M
INTERNAL REFERENCE OUTPUT
Internal reference start-up time
From 95% (+VA), with 1-
F capacitor on REFOUT
25
ms
Reference voltage range, Vref
IO = 0, TA = 25°C
4.088
4.096
4.104
V
Source current
Static load
10
A
Line regulation
+VA = 4.75 V to 5.25 V
±1
mV
Drift
IO = 0
±6
PPM/
°C
ANALOG COMMON-MODE, PIN 3
Output voltage range
IO = 0
VREF/2 - 0.016
VREF/2
VREF/2 + 0.016
V
Source current
Static load
200
A
(1)
Calculated on the first nine harmonics of the input frequency.
(2)
ADC Sampling circuit is optimized to accept inputs until Nyquist frequency. Dynamic performance may degrade rapidly above fi(max).
4
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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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