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부품번호 | KH600 기능 |
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기능 | Differential Input/Output Amplifier | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 12 페이지수
www.DataSheet4U.com
KH600
1GHz, Differential Input/Output Amplifier
www.fairchildsemi.com
Features
s DC - 1GHz bandwidth
s Fixed 14dB (5V/V) gain
s 100Ω (differential) inputs and outputs
s -74/-64dBc 2nd/3rd HD at 50MHz
s 45mA output current
s 9Vpp into 100Ω differential load
s 13,000V/µs slew rate
s Optional supply current and offset voltage adjustment
Applications
s ATE systems
s High-end instrumentation
s High bandwidth output amplifier
s Differential buffer
s Line driver
General Description
The KH600 is the first amplifier to combine differential
input and output with a bandwidth of DC-1GHz at
2Vpp. The inputs and outputs are 100Ω differential
(50Ω single ended). The KH600 operates from ±5V
supplies and offers a fixed gain of 14dB (5V/V).
The KH600 also offers optional supply current, differ-
ential output offset voltage, and common mode off-
set voltage adjustments.
The KH600 is constructed using Fairchild's in-house
thin film resistor/bipolar transistor technology. The
KH600 is available in a 12-pin TO8 package.
Typical Application
Differential
100Ω
Source
+
-
The KH600 includes 50Ω resistors from each
input to ground (resulting in a differential input
impedance of 100Ω).
50Ω
50Ω
2nd and 3rd Harmonic Distortion
-30
Vo = 2Vpp
-40
-50
-60
3rd
-70
2nd
-80
-90
-100
0
50 100 150 200 250
Frequency (MHz)
300
Single Tone Intercept Point
100
90
80
I2
70
60
50
40
30 I3
20
0
50 100 150 200 250 300 350
Frequency (MHz)
5Vpp Pulse Response
3
2
1
0
-1
-2
-3
Time (2ns/div)
REV. 1A February 2001
DATA SHEET
KH600 Performance
Characteristics
2 Tone 3rd Order Intermod. Distortion
20
Vo = 5Vpp
0
-20
-40
-60
-80
-100
49.45
49.65 49.85 50.05 50.25
Frequency (MHz)
50.45
2nd Harmonic Distortion vs. Vo
-30
-40
Vo = 5Vpp
-50
Vo = 2Vpp
-60
-70
Vo = 0.5Vpp
-80
-90 Vo = 1Vpp
-100
0
50 100 150 200 250
Frequency (MHz)
300
Single Tone Intercept Point
100
90
80
I2
70
60
50
40
I3
30
20
0
50 100 150 200 250 300 350
Frequency (MHz)
Vs Supply Currents vs. Temperature
72
70
68
+Vs
66
64 -Vs
62
60
58
-40
-20 0 20 40 60
Temperature (°C)
80
4
KH600
(G = +5V/V (14dB), RL = 100Ω (differential), Ta = +25°C,
+Vb1 = +Vb2 = +Vs = +5V, -Vb = -Vs = -5V; unless noted)
2 Tone 3rd Order Intermod. Distortion
20
Vo = 5Vpp
0
-20
-40
-60
-80
-100
99.45
99.65 99.85 100.05 100.25 100.45
Frequency (MHz)
3rd Harmonic Distortion vs. Vo
-30
-40 Vo = 5Vpp
-50 Vo = 2Vpp
-60
Vo = 1Vpp
-70
-80
Vo = 0.5Vpp
-90
-100
0
50 100 150 200 250
Frequency (MHz)
300
-1dB Compression
24
23
22
21
20
19
18
17
16
0
100 200 300 400
Frequency (MHz)
500
Vb Supply Currents vs. Temperature
24
23
22
-Vb
21
+Vb1 shorted to +Vb2
20
19
18
-40
-20 0 20 40 60
Temperature (°C)
80
REV. 1A February 2001
4페이지 KH600
20
15
Differential Gain
10
5
0
Common Mode Gain
-5
-10
1M 10M 100M
Frequency (Hz)
1G
Figure 3: Differential and Common Mode Gain
12
10
OUT1
8
6 OUT2
4
2
0
1M 10M 100M
Frequency (Hz)
1G
Figure 4: Gain with Single-Ended Input
Applied to IN1
Supply Current
The KH600 draws supply current from the 2 Vs pins as
well as the 3 Vb pins. Under Standard Conditions, the
total supply current is typically 89mA. Changing the
voltages on the bias voltage pins will change their
respective supply currents as shown in Figures 5 and 6.
25
-Vb
20
-25
-20
15
+Vb2
10
+Vb1
5
-15
-10
-5
00
-5 5
02 46 8
+Vb1 (V)
Figure 5: Vb Supply Currents vs +Vb1
Changing the voltage on the +Vb1 pin will alter the
supply current for +Vb1 only, +Vb2 and -Vb stay constant
at typically 11mA and 22mA respectively. See Figure 5.
The same principle applies for +Vb2. And Figure 6
illustrates the effect of changing -Vb.
REV. 1A February 2001
DATA SHEET
40
35
30
25
20
15
10
5
0
0
-Vb
+Vb1 , +Vb2
-2 -4 -6
-Vb (V)
-40
-35
-30
-25
-20
-15
-10
-5
0
-8
Figure 6: Vb Supply Currents vs -Vb
Power Dissipation
The KH600 runs at “constant” power, which may be
calculated by (Total Is)(Vs – (-Vs)). Under standard
operating conditions, the power is 890mW. The power
dissipated in the package is completely constant,
independent of signal level. In other words, the
KH600 runs class A.
Power Supply Rejection Ratio (PSRR)
The KH600 has 5 supply pins, +Vs, -Vs, +Vb1, +Vb2,
and -Vb. All of these sources must be considered
when measuring the PSRR. Figure 7 shows the
response of +Vs and -Vs, looking at OUT2. +Vs and -Vs
have the same effect on OUT1.
-20
±Vb = ±5V
-40
-60
-80 +Vs
-Vs
-100
-120
-140
100k
1M 10M 100M
Frequency (Hz)
1G
Figure 7: ±Vs PSRR
Figure 8 shows the response of OUT1 and OUT2 when
+Vb1 changes. The PSRR of the Vb pins is “bad”, which
means that they have a large effect on the response
of the KH600 when their voltages are changed. This
is the desired effect of the bias voltage pins. As Figure 8
indicates, changing +Vb1 has a greater effect on OUT1
than it does on OUT2. Changing +Vb1 has a direct
effect on OUT1. Changing +Vb2 has a direct effect on
OUT2. See the Trimming Differential Output Offset
Voltage section for more details.
7
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부품번호 | 상세설명 및 기능 | 제조사 |
KH600 | Differential Input/Output Amplifier | Fairchild Semiconductor |
KH600 | Differential Input/Output Amplifier | Cadeka |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |