參數(shù)資料
型號： ADS8382IBRHPT
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC28
封裝： 6 X 6 MM, GREEN, PLASTIC, QFN-28
文件頁數(shù)： 23/35頁
文件大?。?/td> 1416K
代理商： ADS8382IBRHPT
www.ti.com
SPECIFICATIONS
ADS8382
SLAS416B – JUNE 2004 – REVISED NOVEMBER 2004
At –40°C to 85°C, +VA = +5 V, +VBD = +5 V or +VBD = +2.7 V, using internal or external reference, f
SAMPLE = 600 kHz,
unless otherwise noted. (All performance parameters are valid only after device has properly resumed from power down,
ADS8382IB
ADS8382I
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
ANALOG INPUT
Full-scale
+IN – (–IN)
–Vref
Vref
–Vref
Vref
V
input voltage(1)
+IN
–0.2
Vref + 0.2
-0.2
Vref + 0.2
Absolute input voltage
V
–IN
–0.2
Vref + 0.2
-0.2
Vref + 0.2
Input common mode
(Vref/2) –0.2
(Vref/2) +0.2
(Vref/2) –0.2
(Vref/2) +0.2
V
range
Sampling capacitance
(measured between +IN
40
pF
to AGND and -IN to
AGND)
Input leakage current
1
nA
SYSTEM PERFORMANCE
Resolution
18
Bits
No missing codes
18
17
Bits
Quiet zones observed
–3
±1.25
3
–5
5
LSB
INL
Integral linearity(2)(3)(4)
(18 bit)
Quiet zones not observed
±2
Quiet zones observed
–1
±0.6
1.5
–2
2.5
LSB
DNL
Differential linearity(3)
(18 bit)
Quiet zones not observed
±1.25
EO
Offset error (3)
–0.75
±0.25
0.75
–1.5
1.5
mV
EG
Gain error(3)(5)
–0.075
0.075
-0.1
0.1
%FS
At DC
80
Common-mode rejection
CMRR
dB
[+IN + (–IN)]/2 = 50 mVp-p
ratio
55
at 1 MHz + DC of Vref/2
Noise
At 00000H output code
40
V RMS
DC Power supply rejec-
PSRR
At 10000H output code
55
dB
tion ratio
SAMPLING DYNAMICS
Conversion time
1.16
s
Acquisition time
0.50
1000
0.50
1000
s
Throughput rate
600
kHz
Aperture delay
10
ns
Aperture jitter
12
ps RMS
Step response
(6)
400
ns
Overvoltage recovery
400
ns
DYNAMIC CHARACTERISTICS
VIN = 8 Vp-p at 1 kHz
-116
Total harmonic
THD
VIN = 8 Vp-p at 10 kHz
-115
dB
distortion(3)(7)
VIN = 8 Vp-p at 100 kHz
-96
VIN = 8 Vp-p at 1 kHz
96
SNR
Signal-to-noise ratio(3)
VIN = 8 Vp-p at 10 kHz
95
dB
VIN = 8 Vp-p at 100 kHz
94
(1)
Ideal input span; does not include gain or offset error.
(2)
LSB means least significant bit.
(3)
Measured using analog input circuit in Figure 54 and digital stimulus in Figure 58 and Figure 59 and reference voltage of 4.096 V.
(4)
This is endpoint INL, not best fit.
(5)
Measured using external reference source so does not include internal reference voltage error or drift.
(6)
Defined as sampling time necessary to settle an initial error of 2Vref on the sampling capacitor to a final error of 1 LSB at 18-bit level.
Measured using the input circuit in Figure 54.
(7)
Calculated on the first nine harmonics of the input frequency.
3
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ADS8382IRHPRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS 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
ADS8382IRHPT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS 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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