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PDF AM460 Data sheet ( Hoja de datos )
| Número de pieza | AM460 | |
| Descripción | Industrial Converter and Protector IC | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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Industrial Converter and Protector IC
AM460
PRINCIPLE FUNCTION
Amplification and conversion of voltage signals referenced to ground
Integrated protection for IC and external components
Integrated, adjustable current/voltage sources for external components
VS = 6...35V
Single-ended
input signal
e.g. 0...5V, 0...1V
AM460
IOUT = 0/4...20mA
VOUT = 0...5/10V
VREF = 5/10V
IS = e.g. 1.5mA
TYPICAL APPLICATIONS
• Peripheral processor IC (see Figure 12 on page 17)
• Industrial protector and output IC for microprocessors (Frame ASIC concept [1])
• Impedance converter
• Adjustable voltage and current source (supply unit)
• Voltage regulator with additional functions
analog microelectronics
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Internet: http://www.analogmicro.de
Phone: +49 (0)6131/91 073 – 0
Fax: +49 (0)6131/91 073 – 30
E–mail: info@analogmicro.de
April 2003
1/18
Rev. 1.1
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
Industrial Converter and Protector IC
AM460
Parameter
Symbol
Operational Amplifier Gain Stage (OP1) (cont.)
Input Bias Current
IB
IB vs. Temperature
dIB/dT
Output Voltage Limit
VLIM
Output Voltage Range
VOUTAD
VOUTAD
Load Capacitance
CL
Operational Amplifier Output Stage (OP3)
Internal Gain
Input Range
Power Supply Rejection Ratio
Offset Voltage
VOS vs. Temperature
Input Bias Current
IB vs. Temperature
Output Voltage Range
Output Current Limitation
Output Current
Load Resistance
Load Capacitance
V/I Converter
Internal Gain
Trim Range
Voltage Range at R0 FS
Offset Voltage
VOS vs. Temperature
Input Resistance
RIN vs. Temperature
Output Offset Current
IOUTOS vs. Temperature
Output Offset Current
IOUTOS vs. Temperature
Output Control Current
IOUTC vs. Temperature
Output Voltage Range
Output Current Range FS
Output Resistance
Load Capacitance
GOP
IR
IR
PSRR
VOS
dVOS/dT
IB
dIB/dT
VOUT
VOUT
ILIM
IOUT
RL
CL
GVI
VR0FS
VOS
dVOS/dT
RIN
dRIN/dT
IOUTOS
dIOUTOS/dT
IOUTOS
dIOUTOS/dT
IOUTC
dIOUTC/dT
VOUT
VOUT
IOUTFS
ROUT
CL
Conditions
VCC < 10V
VCC ≥ 10V
VCC < 11V
VCC ≥ 11V
VCC < 19V
VCC ≥ 19V
VOUT ≥ 10V
Adjustable by R0
βF ≥ 100
βF ≥ 100
3-wire operation
3-wire operation
2-wire operation
2-wire operation
2-wire operation, VR0/100mV
2-wire operation
VOUT = RL IOUT, VCC < 18V
VOUT = RL IOUT, VCC ≥ 18V
IOUT = VR0/R0, 3-wire operation
Min.
Typ.
Max.
Unit
10 25 nA
7 20 pA/°C
VREF
V
0
VCC – 5
V
0
VREF
V
250 pF
2.15 2.20 2.25
0
VCC – 5
V
0 6V
80 90
dB
±0.5 ±2
mV
±3 ±7 µV/°C
10 25 nA
7 20 pA/°C
0
VCC – 5
V
0 14 V
5 7 10 mA
0 ILIM mA
2 kΩ
500 nF
0.125
0.75 1.00 1.25
350 750 mV
±2 ±4 mV
±7 ±14 µV/°C
120 160
kΩ
0.2 0.3
kΩ/°C
–25 –35
µA
16 26 nA/°C
9.5 14 µA
6 8 nA/°C
6 8 µA
–10 –15 nA/°C
0
VCC – 6
V
0 12 V
20 mA
0.5 1.0
MΩ
0 500 nF
analog microelectronics
April 2003
5/18
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
Industrial Converter and Protector IC
AM460
cuit in Figure 5 the following applies:
IS
=
V BG
R SET
= 1.27 V
R SET
(12)
The bridge symbol represents the component to be supplied with current (e.g. a piezoresistive sensing element
or temperature sensor).
Example 1:
A supply current of IS = 1mA is to be set. Using Equation 12 the following value is calculated for external re-
sistor RSET, which in turn stipulates the size of the current:
R SET
= VBG
IS
= 1.27 V
1mA
= 1.27 kΩ
Connecting OP2 as a voltage reference
In addition to the integrated voltage reference OP2 can also be used to supply voltage to external components
such as A/D converters and microprocessors, for example. Lower voltages can be generated (e.g. 3.3V) which
with the increasing miniaturisation of devices and need for ever lower levels of power dissipation in digital
components is today of growing importance.
The additional operational amplifier OP2 can easily be connected up as a voltage reference. Using the circuit in
Figure 6 the following applies:
V CVREF
= V BG
1 +
R6
R7
= 1.27 V
1 +
R6
R7
(13)
Example 2:
A voltage of VCVREF = 3.3V is to be set. Using Equation 13 the following ratio is calculated for external resistors
VCVREF
OP2 connected as voltage
reference
1
µP R6 AM460
2
OP2
R7
VBG
Figure 6: Connecting up a voltage reference
analog microelectronics
April 2003
11/18
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AM460.PDF ] | |
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