参数资料
| 型号： | AD604AR-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/33页 |
| 文件大小： | 0K |
| 描述： | IC AMP VGA DUAL ULN 40MA 24SOIC |
| 标准包装： | 1,000 |
| 系列： | X-AMP® |
| 放大器类型： | 可变增益 |
| 电路数： | 2 |
| 转换速率： | 170 V/µs |
| -3db带宽： | 40MHz |
| 电流 - 输入偏压： | 400nA |
| 电流 - 电源： | 32mA |
| 电流 - 输出 / 通道： | 40mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
| 配用： | AD604-EVALZ-ND - BOARD EVAL FOR AD604 AMP |
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页当前第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
AD604
Rev. G | Page 21 of 32
At 1 MHz, the attenuation is about 0.2 dB, increasing to 6 dB
at 10 MHz and 28 dB at 100 MHz. Signals less than approximately
1 MHz are not significantly affected.
Figure 49 shows the control voltage vs. the input power at 1 MHz
to the circuit shown in Figure 48; note that the AGC threshold is at
95 dBm. The output signal level is set to 800 mV p-p by applying
80 mV to the VSET connector.
12
11
10
9
8
1
2
3
4
7
6
5
13
16
15
14
24
23
22
21
20
19
18
17
AD604
FB
–DSX1
+DSX1
PAI1
FBK1
PAO1
COM1
COM2
PAI2
FBK2
PAO2
+DSX2
–DSX2
VGN1
VREF
VPOS
GND1
OUT1
VNEG
VPOS
GND2
OUT2
VOCM
VGN2
FAIR-RITE
#2643000301
C5
0.1F
R2
499
C6
560pF
C3
0.1F
00
54
0-
04
8
Figure 48. Modifications of the AGC Amplifier to Create 96 dB of Gain Range
4.5
4.0
0
3.5
3.0
1.0
2.5
2.0
1.5
CO
NT
R
O
L
V
O
L
T
AG
E
(V
)
1MHz
0.5
PIN (dBm)
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10
0
10
00
54
0-
0
49
Figure 49. Control Voltage vs. Input Power of the Circuit in Figure 48
ULTRALOW NOISE, DIFFERENTIAL INPUT-
DIFFERENTIAL OUTPUT VGA
Figure 50 shows how to use both preamplifiers and DSXs to
create a high impedance, differential input-differential output
VGA. This application takes advantage of the differential inputs
to the DSXs. Note that the input is not truly differential in the
sense that the common-mode voltage needs to be at ground to
achieve maximum input signal swing. This has largely to do
with the limited output swing capability of the output drivers of
the preamplifiers; they clip around ±2.2 V due to having to drive
an effective load of about 30 Ω. If a different input common-mode
voltage needs to be accommodated, ac coupling (as in Figure 48)
is recommended. The differential gain range of this circuit runs
from 6 dB to 54 dB, which is 6 dB higher than each individual
the signal amplitude compared with when they are driven
single-ended.
13
16
15
14
19
18
17
24
23
22
21
20
12
11
10
9
8
1
2
3
4
7
6
5
AD604
FB
+5V
–5V
ALL SUPPLY PINS ARE DECOUPLED AS SHOWN.
+5V
–5V
+5V
VIN+
VIN–
VG
VREF
VOUT+
VOUT–
–DSX1
+DSX1
PAI1
FBK1
PAO1
COM1
COM2
PAI2
FBK2
PAO2
+DSX2
–DSX2
VGN1
VREF
VPOS
GND1
OUT1
VNEG
VPOS
GND2
OUT2
VOCM
VGN2
C13
0.1F
C12
0.1F
C1
0.1F
C2
0.1F
C4
0.1F
C3
0.1F
C5
0.1F
C7
0.1F
R1
453
R2
453
C6
0.1F
005
40-
05
0
Figure 50. Ultralow Noise, Differential Input-Differential Output VGA
Fig
r
,
ure 51 displays the output signals VOUT+ and VOUT afte
a 20 dB attenuator formed between the 453 Ω resistors shown
in Figure 50 and the 50 Ω loads presented by the oscilloscope
plug-in. R1 and R2 are inserted to ensure a nominal load of 500 Ω
at each output. The differential gain of the circuit is set to 20 dB
by applying a control voltage, VGN, of 1 V; the gain scaling is
20 dB/V for a VREF of 2.500 V; the input frequency is 10 MHz
and the differential input amplitude is 100 mV p-p. The resulting
differential output amplitude is 1 V p-p as can be seen on the
scope photo when reading the vertical scale as 200 mV/div.
10
0%
100
90
20ns
20mV
NOTES
1. THE OUTPUT AFTER 10× ATTENUATER FORMED
BY 453 TOGETHER WITH 50 OF 7A24 PLUG-IN.
–500mV
ACTUAL
VOUT
+500mV
0
05
40-
054
Figure 51. Output of VGA in Figure 50 for VGN = 1 V
channel of the AD604 because the DSX inputs now see twice
相关PDF资料 |
PDF描述 |
|---|---|
| 2510-60K2UB | CONN HEADER 10POS STR GOLD T/H |
| 3432-1302UG | CONN HEADER 40POS R/A LONG LATCH |
| 98414-G06-24U | MINITEK SHROUDED HDR TMT |
| 3432-1202 | CONN HEADER 40PS R/A SHORT LATCH |
| 180905-5 | CONN RCPT HSG .250 1POS BLACK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD604ARS | 制造商:Analog Devices 功能描述:SP Amp Variable Gain Amp Dual 24-Pin SSOP Tube 制造商:Analog Devices 功能描述:SEMICONDUCTOR ((NW)) |
| AD604ARS-REEL | 制造商:Analog Devices 功能描述:SP Amp Variable Gain Amp Dual 24-Pin SSOP T/R |
| AD604ARS-REEL7 | 制造商:Analog Devices 功能描述:SP Amp Variable Gain Amp Dual 24-Pin SSOP T/R |
| AD604ARSZ | 功能描述:IC AMP VGA DUAL ULN 40MA 24SSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:X-AMP® 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| AD604ARSZ-R7 | 功能描述:IC AMP VGA DUAL ULN 40MA 24SSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:X-AMP® 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。