|
|
PDF RHF310 Data sheet ( Hoja de datos )
| Número de pieza | RHF310 | |
| Descripción | high-speed operational amplifier | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de RHF310 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
|
No Preview Available !
RHF310
Rad-hard 400 µA high-speed operational amplifier
Preliminary data
Features
■ OptimWattTM device featuring ultra-low 2 mW
consumption and low 400 μA quiescent
current(a)
■ Bandwidth: 120 MHz (gain = 2)
■ Slew rate: 115 V/μs
■ Specified on 1 kΩ
■ Input noise: 7.5 nV/√ Hz
■ Tested with 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
■ QMLV qualified under SMD 5962-0723301
■ Mass: 0.45 g
Applications
■ Low-power, high-speed systems
■ Communication and space equipment
■ Harsh radiation environments
■ ADC drivers
NC
IN -
IN +
-VCC
Pin connections
(top view)
18
45
NC
+VCC
OUT
NC
The upper metallic lid is not electrically connected to any
pins, nor to the IC die inside the package.
Description
www.DataSheet.net/
The RHF310 is a very low power, high-speed
operational amplifier. A bandwidth of 120 MHz is
achieved while drawing only 400 µA of quiescent
current. This low-power characteristic is
particularly suitable for high-speed battery
powered devices requiring dynamic performance.
The RHF310 is a single operator available in a
Flat-8 package, saving board space as well as
providing excellent thermal performance.
Table 1. Device summary
Order code
SMD pin
Quality
level
Package
Lead
finish
Marking
EPPL Packing
RHF310K1
-
Engineering
model
Flat-8
Gold
RHF310K1
-
Strip pack
RHF310K-01V 5962F0723301VXC QMLV-Flight Flat-8 Gold 5962F0723101VXC -
Note:
Contact your ST sales office for information on the specific conditions for products in die form and
QML-Q versions.
a. OptimWattTM is an STMIcroelectronics registered trademark that applies to products with specific features that optimize
energy efficiency.
July 2011
Doc ID 15577 Rev 3
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/22
www.st.com
22
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
RHF310
2 Electrical characteristics
Electrical characteristics
Table 4.
Symbol
Electrical characteristics for VCC = ±2.5 V, Tamb = 25° C
(unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max.
DC performance
Vio Input offset voltage
Iib+ Non-inverting input bias current
Iib- Inverting input bias current
Common mode rejection ratio
CMR
20 log (ΔVic/ΔVio)
Supply voltage rejection ratio
SVR
20 log (ΔVCC/ΔVout)
Power supply rejection ratio
PSRR
20 log (ΔVCC/ΔVout)
ICC Supply current
+125°C -6.5
+6.5
+25°C -6.5 1.7 +6.5
-55°C -6.5
+6.5
+125°C
15
+25°C
3.1 12
-55°C
15
+125°C
7
+25°C
0.1 5
-55°C
7
+125°C 55
ΔVic = ±1 V
+25°C
-55°C
57
55
61
+125°C 50
ΔVCC = 3.5 V to 5 V
www.DataSheet.net/
+25°C
-55°C
65
50
82
ΔVCC = 200 mVpp at
1 kHz
+25°C
50
+125°C
600
No load
+25°C
400 530
-55°C
600
Dynamic performance and output characteristics
ROL Transimpedance
Small signal -3 dB bandwidth on
1k Ω load
Bw
Gain flatness at 0.1 dB
ΔVout= ±1 V,
RL = 1 kΩ
+125°C 500
+25°C 600 1450
-55°C 500
Rfb = 3 kΩ, AV = +1
Rfb = 510 Ω, AV = +10
+25°C
+25°C
+125°C
70
230
26
Rfb = 3 kΩ, AV = +2
+25°C 70 120
-55°C 70
Vout = 20 mVpp
AV = +2, RL = 1k Ω
+25°C
25
Unit
mV
μA
μA
dB
dB
dB
µA
kΩ
MHz
Doc ID 15577 Rev 3
5/22
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
RHF310
3 Power supply considerations
Power supply considerations
Correct power supply bypassing is very important for optimizing the performance of the
device in high-frequency ranges. The bypass capacitors should be placed as close as
possible to the IC pins to improve high-frequency bypassing. A capacitor greater than 1 µF
is necessary to minimize the distortion. For better quality bypassing, a capacitor of 10 nF
can be added, which should also be placed as close as possible to the IC pins. The bypass
capacitors must be incorporated for both the negative and positive supply.
Figure 22. Circuit for power supply bypassing
+VCC
10 µF
+
10 nF
+
- 10 nF
-VCC
10 µF
+
www.DataSheet.net/
AM00835
3.1 Single power supply
If you use a single-supply system, biasing is necessary to obtain a positive output dynamic
range between the 0 V and +VCC supply rails. Considering the values of VOH and VOL, the
amplifier provides an output swing from +0.9 V to +4.1 V on 1 kΩ loads.
The amplifier must be biased with a mid-supply (nominally +VCC/2) in order to maintain the
DC component of the signal at this value. Several options are possible to provide this bias
supply, such as a virtual ground using an operational amplifier or a two-resistance divider
(which is the cheapest solution). A high resistance value is required to limit the current
consumption. On the other hand, the current must be high enough to bias the non-inverting
input of the amplifier. If we consider this bias current (55 µA maximum) as 1% of the current
through the resistance divider, two resistances of 470 Ω can be used to maintain a mid
supply.
The input provides a high-pass filter with a break frequency below 10 Hz, which is
necessary to remove the original 0 V DC component of the input signal and to set it at
+VCC/2.
Figure 23 on page 12 illustrates a 5 V single power supply configuration.
A capacitor CG is added in the gain network to ensure a unity gain at low frequencies to
keep the right DC component at the output. CG contributes to a high-pass filter with Rfb//RG
and its value is calculated with a consideration of the cut-off frequency of this low-pass filter.
Doc ID 15577 Rev 3
11/22
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet RHF310.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| RHF310 | high-speed operational amplifier | STMicroelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |