am427 AME, Inc., am427 Datasheet - Page 3

• Manufacturer Part Number: am427
• Description: Ratiometrisches Transmitter-ic - Analog Microelectronics
• Manufacturer: AME, Inc.

RATIOMETRISCHES TRANSMITTER–IC
RANDBEDINGUNGEN
FUNKTIONSDIAGRAMM
analog microelectronics
Parameter
Voltage Output Stage (cont.)
Offset Voltage
V
Input Current
Input Current Pin RSC
Output Voltage Range
Output Current
Output Current Pin VOUT
Current Limitation Threshold
Output Resistance
Linearity
Current Source – Output
Internal Sense Voltage
Input Sense Current
Output Current
Output Current
Output Voltage Range
Parameter
Resistor Adjustment Current Source (Transducer)
Gain Resistor Sum
Capacitor Power Supply
Capacitor Frequency Compensation (Output Stage)
Capacitor Load (Output Stage)
Resistor Sense Current Limitation
Resistor Adjustment Current Source (Output Stage)
OS
vs. Temperature
Abbildung 2
V
S
(ratriometrisch)
I
BR
V
dV
I
I
V
I
I
V
R
V
I
I
I
V
IN
RSC
OUT
VOUT
RIC
VIC
OUT
OS
OUT
THRESH
OUT
RIC
OUT
OS
Symbol
/dT
∆V
∆V
V
with transistor BCW68H
I
with transistor BCW68H
pin VOUT
ratiometric with VCC
virtual
ideal input
ratiometric with VCC
with transistor BC848C
with transistor BC848C, I
Symbol
R
OUT
12 V
RSC
3
C
C
C
IN
IN
R
R
R
+ R
1
2
5
1
2
3
= 10mA (see figure 5)
= V
= 50mV
= 50mV
4
VCC
AMP
– 150mV
Conditions
COMP
Conditions
GAIN = 20...110
OUT
= 5mA
Min.
Min.
100
120
485
400
100
8.0
0.5
0.8
4.3
1.0
20
90
0
Typ.
Typ.
12.5
200
150
500
0.1
20
25
35
Max.
Max.
1000
1000
±3.0
25.0
12.5
0.85
0.01
10.0
±15
300
180
515
4.5
2.0
5.8
75
75
75
50
6
6
AM427
Ground
V
OUT
April 99
µV/°C
Unit
%FS
Unit
mV
mV
mV
mA
mA
nA
µA
µA
nA
µA
kΩ
nF
nF
nF
V
Ω
V
Ω
Ω
Ω
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