参数资料
型号: AD9276BSVZ
厂商: Analog Devices Inc
文件页数: 34/48页
文件大小: 0K
描述: IC ADC 12BIT LNA/VGA/AAF 100TQFP
标准包装: 1
类型: AAF,ADC,解调器,LNA,VGA
分辨率(位): 12 b
采样率(每秒): 10M ~ 80M
数据接口: 串行,SPI?
电压电源: 模拟和数字
电源电压: 1.8V,3V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-TQFP 裸露焊盘
供应商设备封装: 100-TQFP-EP(14x14)
包装: 托盘
AD9276
Rev. 0 | Page 4 of 48
SPECIFICATIONS
AC SPECIFICATIONS
AVDD1 = 1.8 V, AVDD2 = 3.0 V, DRVDD = 1.8 V, 1.0 V internal ADC reference, fIN = 5 MHz, RS = 50 Ω, LNA gain = 21.3 dB, LNA bias = high,
PGA gain = 27 dB, GAIN = 0.8 V, AAF LPF cutoff = fSAMPLE/3 (Mode I/Mode II), fSAMPLE/4.5 (Mode III), HPF cutoff = LPF cutoff/20.7 (default),
Mode I = fSAMPLE = 40 MSPS, Mode II = fSAMPLE = 65 MSPS, Mode III = fSAMPLE = 80 MSPS, full temperature, ANSI-644 LVDS mode, unless
otherwise noted.
Table 1.
Parameter1
Test Conditions/Comments
Min
Typ
Max
Unit
LNA CHARACTERISTICS
Gain
Single-ended input to differential output
15.6/17.9/21.3
dB
Single-ended input to single-ended output
9.6/11.9/15.3
dB
Input Voltage Range
(Single-Ended)
LNA output limited to 4.4 V p-p differential
output
LNA gain = 15.6 dB
733
mV p-p
LNA gain = 17.9 dB
550
mV p-p
LNA gain = 21.3 dB
367
mV p-p
Input Common Mode (LI-x, LG-x)
1.0
V
Output Common Mode (LO-x)
1.5
V
Output Common Mode (LOSW-x)
Switch off
High-Z
Ω
Switch on
1.5
V
Input Resistance (LI-x)
RFB = 250 Ω
50
Ω
RFB = 500 Ω
100
Ω
RFB = ∞
15
Input Capacitance (LI-x)
22
pF
3 dB Bandwidth
100
MHz
Input Noise Voltage
RS = 0 Ω, RFB = ∞
LNA gain = 15.6 dB
0.98
nV/√Hz
LNA gain = 17.9 dB
0.86
nV/√Hz
LNA gain = 21.3 dB
0.75
nV/√Hz
Input Noise Current
RFB = ∞
1
pA/√Hz
1 dB Input Compression Point
GAIN+ = 0 V
LNA gain = 15.6 dB
1.0
V p-p
LNA gain = 17.9 dB
0.8
V p-p
LNA gain = 21.3 dB
0.5
V p-p
Noise Figure
RS = 50 Ω
Active Termination Matched
LNA gain = 15.6 dB, RFB = 200 Ω
4.8
dB
LNA gain = 17.9 dB, RFB = 250 Ω
4.1
dB
LNA gain = 21.3 dB, RFB = 350 Ω
3.2
dB
Unterminated
LNA gain = 15.6 dB, RFB = ∞
3.4
dB
LNA gain = 17.9 dB, RFB = ∞
2.8
dB
LNA gain = 21.3 dB, RFB = ∞
2.3
dB
FULL-CHANNEL (TGC)
CHARACTERISTICS
AAF Low-Pass Cutoff
In Range
3 dB, programmable
8
18
MHz
In Range AAF Bandwidth
Tolerance
±10
%
Group Delay Variation
f = 1 MHz to 18 MHz, GAIN+ = 0 V to 1.6 V
±0.5
ns
Input-Referred Noise Voltage
GAIN+ = 1.6 V, RFB = ∞
LNA gain = 15.6 dB
1.26
nV/√Hz
LNA gain = 17.9 dB
1.04
nV/√Hz
LNA gain = 21.3 dB
0.85
nV/√Hz
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