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PDF RHF350 Data sheet ( Hoja de datos )
| Número de pieza | RHF350 | |
| Descripción | Amplifiers | |
| Fabricantes | ST Microelectronics | |
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RHF350
Rad-hard 550 MHz low noise operational amplifier
Preliminary data
Features
■ Bandwidth: 550 MHz in unity gain
■ Quiescent current: 4.1 mA
■ Slew rate: 940 V/μs
■ Input noise: 1.5 nV/√Hz
■ Distortion: SFDR = -66 dBc (10 MHz, 1Vpp)
■ 2.8 Vpp minimum output swing on 100 Ω load
for a +5 V supply
■ 5 V power supply
■ 300 krad MIL-STD-883 1019.7 ELDRS free
compliant
■ SEL immune at 125° C, LET up to
110 MEV.cm2/mg
■ SET characterized, LET up to
110 MEV.cm2/mg
NC
IN -
IN +
-VCC
Pin connections
(top view)
Ceramic Flat-8
18
NC
+VCC
OUT
NC
45
Applications
■ Communication satellites
■ Space data acquisition systems
■ Aerospace instrumentation
■ Nuclear and high energy physics
■ Harsh radiation environments
■ ADC drivers
The RHF350 is a single operator available in the
Flat-8 hermetic ceramic package, saving board
room as well as providing excellent thermal and
dynamic performance.
Description
The RHF350 is a current feedback operational
amplifier that uses a very high speed
complementary technology to provide a
bandwidth of up to 410 MHz while drawing only
4.1 mA of quiescent current. With a slew rate of
940 V/µs and an output stage optimized for
driving a standard 100 Ω load, this circuit is highly
suitable for applications where speed and power-
saving are the main requirements.
May 2009
Doc ID 15604 Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/23
www.st.com
23
1 page  
www.DatRaSHhFe3e5t04U.com
Electrical characteristics
Table 3.
Symbol
Electrical characteristics for VCC = ±2.5 V, Tamb = 25° C
(unless otherwise specified) (1) (continued)
Parameter
Test conditions
Min. Typ. Max. Unit
VOL
Iout
Low level output voltage
Isink
Short-circuit output current coming into
the op-amp.(3)
Isource
Output current coming out from the op-
amp.(4)
RL = 100 Ω
Tmin < Tamb < Tmax
Output to GND
Tmin < Tamb < Tmax
Output to GND
Tmin < Tamb < Tmax
-1.53 -1.44
-1.6 -1.5
135 205
181 230
-140 -210
179 273
V
mA
Noise and distortion
eN Equivalent input noise voltage(5)
Equivalent input noise current (+)(5)
iN
Equivalent input noise current (-)(5)
F = 100 kHz
F = 100 kHz
F = 100 kHz
1.5 nV/√Hz
20 pA/√Hz
13 pA/√Hz
SFDR
Spurious free dynamic range
The highest harmonic of the output
spectrum when injecting a filtered sine
wave
AV = +1, Vout = 1Vpp
F = 10 MHz
F = 20 MHz
F = 50 MHz
F = 100 MHz
-66
-57 dBc
-46
-42
1. Tmin < Tamb < Tmax: worst case of the parameter on a standard sample across the temperature range. The evaluation is
done on 50 units in the SO-8 plastic package.
2. Gain bandwidth product criterion is not applicable for current feedback amplifiers.
3. See Figure 7 for more details.
4. See Figure 8 for more details.
5. See Chapter 5 on page 14.
Table 4.
Closed-loop gain and feedback components
VCC (V)
Gain
+10
-10
+2
±2.5
-2
+1
-1
Rfb (Ω)
300
300
300
300
820
300
Doc ID 15604 Rev 1
5/23
5 Page 
www.DatRaSHhFe3e5t04U.com
Figure 26. Top view layout
Demonstration board schematics
Figure 27. Bottom view layout
Doc ID 15604 Rev 1
11/23
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet RHF350.PDF ] | |
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