AVDD = 1.8 V, DRVDD = 1.8 V, CWVDD = 3.3 V, 1.0 V internal ADC referenc" />
參數(shù)資料
型號: AD9271BSVZ-40
廠商: Analog Devices Inc
文件頁數(shù): 34/60頁
文件大?。?/td> 0K
描述: IC ADC OCT 12BIT 40MSPS 100-TQFP
標(biāo)準(zhǔn)包裝: 1
位數(shù): 12
采樣率(每秒): 40M
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 8
功率耗散(最大): 1.28W
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 100-TQFP-EP(14x14)
包裝: 托盤
輸入數(shù)目和類型: 8 個(gè)單端,單極;8 個(gè)差分,單極
AD9271
Rev. B | Page 4 of
60
SPECIFICATIONS
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, CWVDD = 3.3 V, 1.0 V internal ADC reference, fIN = 5 MHz, RS = 50 Ω, LNA gain = 15.6 dB (6), AAF
LPF cutoff = 1/3 × fS, HPF cutoff = 700 kHz, full temperature, unless otherwise noted.
Table 1.
AD9271-25
AD9271-40
AD9271-50
Parameter1
Conditions
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
LNA CHARACTERISTICS
Gain = 5/6/8
Single-ended input
to differential output
14/15.6/18
dB
Single-ended input
to single-ended
output
8/9.6/12
dB
Input Voltage Range,
Gain = 5/6/8
LNA output limited
to 2 V p-p differential
output
400/333/250
mV p-p
SE2
Input Common
Mode
1.4
V
Input Resistance
RFB = 200 Ω
50
Ω
RFB = 400 Ω
100
Ω
RFB = ∞
15
Input Capacitance
LI-x
15
pF
3 dB Bandwidth
40
60
70
MHz
Input Noise Current,
Gain = 5/6/8
1.1
pA/√Hz
Input Noise Voltage,
Gain = 5/6/8
RS = 0 Ω, RFB = ∞
1.4/1.4/1.3
1.3/1.2/1.1
nV/√Hz
1 dB Input
Compression
Point, Gain = 5/6/8
VGAIN = 0 V
770/650/495
mV p-p
Noise Figure
Active Termination
Match
RS = 50 Ω, RFB = 200 Ω
6.7
dB
Unterminated
RFB = ∞
4.9
4.4
4.2
dB
FULL-CHANNEL (TGC)
CHARACTERISTICS
AAF High-Pass Cutoff
3 dB
DC/350/700
kHz
AAF Low-Pass Cutoff
3 dB, programmable
1/3 × fSAMPLE
(8 to 18)
1/3 × fSAMPLE
(8 to 18)
1/3 × fSAMPLE
(8 to 18)
MHz
Bandwidth Tolerance
±15
%
Group Delay Variation
f = 1 to 18 MHz,
gain = 0 V to 1 V
±2
ns
Input-Referred Noise
Voltage
LNA gain = 5/6/8,
RFB = ∞
1.7/1.6/1.5
1.6/1.4/1.3
1.6/1.4/1.2
nV/√Hz
Correlated Noise Ratio
No signal, correlated/
uncorrelated
30
dB
Output Offset
AAF high pass =
700 kHz
50
+50
35
+35
35
+35
LSB
Signal-to-Noise Ratio
(SNR)
fIN = 5 MHz
at 7 dBFS
VGAIN = 0 V
65.8
64.4
63.7
dBFS
fIN = 5 MHz
at 1 dBFS
VGAIN = 1 V
62
59.7
59
dBFS
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