- 您现在的位置：买卖IC网 > PDF目录17026 > AD9276-65EBZ (Analog Devices Inc)BOARD EVALUATION FOR AD9276 PDF资料下载
参数资料
| 型号： | AD9276-65EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 24/48页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD9276 |
| 设计资源： | AD9276/77 Eval Brd Gerber Files |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 65M |
| 数据接口： | 串行，SPI? |
| 输入范围： | 733 mVpp |
| 在以下条件下的电源（标准）： | 195mW @ 40MSPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD9276 |
| 已供物品： | 板 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页
AD9276
Rev. 0 | Page 30 of 48
Table 10. Sensitivity and Dynamic Range Trade-Offs1, 2, 3
LNA
VGA
Channel
Gain
Full-Scale
Input (V p-p)
Input Noise
(nV/√Hz)
Postamp Gain (dB)
Typical Output Dynamic Range (dB)
(V/V)
(dB)
GAIN+ = 0 V4
GAIN+ = 1.6 V5
Input-Referred Noise6 @
GAIN+ = 1.6 V (nV/√Hz)
6
15.6
0.733
0.98
21
67.5
65.1
1.395
24
66.4
63.0
1.286
27
64.6
60.6
1.227
30
62.5
57.9
1.197
8
17.9
0.550
0.86
21
67.5
64.5
1.149
24
66.4
62.3
1.071
27
64.6
59.8
1.030
30
62.5
57.1
1.009
12
21.3
0.367
0.75
21
67.5
63.3
0.910
24
66.4
60.9
0.865
27
64.6
58.2
0.842
30
62.5
55.4
0.830
1 LNA: output full scale = 4.4 V p-p differential.
2 Filter: loss ≈ 1 dB, NBW = 13.3 MHz, GAIN = 0.8 V.
3 ADC: 40 MSPS, 70 dB SNR, 2 V p-p full-scale input.
4 Output dynamic range at minimum VGA gain (VGA dominated).
5 Output dynamic range at maximum VGA gain (LNA dominated).
6 Channel noise at maximum VGA gain.
Table 10 demonstrates the sensitivity and dynamic range
trade-offs that can be achieved relative to various LNA and
VGA gain settings.
For example, when the VGA is set for the minimum gain voltage,
the TGC path is dominated by VGA noise and achieves the
maximum output SNR. However, as the postamp gain options
are increased, the input-referred noise is reduced and the SNR
is degraded.
If the VGA is set for the maximum gain voltage, the TGC path
is dominated by LNA noise and achieves the lowest input-
referred noise, but with degraded output SNR. The higher the
TGC (LNA + VGA) gain, the lower the output SNR. As the
postamp gain is increased, the input-referred noise is reduced.
At low gains, the VGA should limit the system noise performance
(SNR); at high gains, the noise is defined by the source and the
LNA. The maximum voltage swing is bound by the full-scale
peak-to-peak ADC input voltage (2 V p-p).
Both the LNA and VGA have full-scale limitations within each
section of the TGC path. These limitations are dependent on the
gain setting of each function block and on the voltage applied to
the GAIN+ and GAIN pins. The LNA has three limitations,
or full-scale settings, that can be applied through the SPI.
Similarly, the VGA has four postamp gain settings that can be
applied through the SPI. The voltage applied to the GAIN± pins
determines which amplifier (the LNA or VGA) saturates first.
The maximum signal input level that can be applied as a
function of voltage on the GAIN± pins for the selectable gain
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
GAIN+ (V)
IN
P
U
T
FU
L
S
C
A
L
E
(
V
p-
p)
08
18
0-
0
50
PGA GAIN = 21dB
PGA GAIN = 24dB
PGA GAIN = 27dB
PGA GAIN = 30dB
Figure 56. LNA with 15.6 dB Gain Setting/VGA Full-Scale Limitations
相关PDF资料 |
PDF描述 |
|---|---|
| FPF2101 | IC SWITCH LOAD FULL FUNC SOT23-5 |
| AD9257-65EBZ | BOARD EVAL FOR AD9257 |
| GMM10DRYH | CONN EDGECARD 20POS DIP .156 SLD |
| AD9253-125EBZ | BOARD EVAL FOR AD9253-125 |
| GCM15DRYF | CONN EDGECARD 30POS DIP .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9276-80KITZ | 功能描述:BOARD EVAL HI SPEED FPGA AD9276 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| AD9276BSVZ | 功能描述:IC ADC 12BIT LNA/VGA/AAF 100TQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD9276XBCZ | 功能描述:IC ADC 12BIT LNA/VGA/AAF 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:1 |
| AD9276XSVZ | 功能描述:IC ADC 12BIT LNA/VGA/AAF 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:1 |
| AD9277 | 制造商:AD 制造商全称:Analog Devices 功能描述:Octal LNA/VGA/AAF/14-Bit ADC and CW I/Q Demodulator |
发布紧急采购，3分钟左右您将得到回复。