AM417 AME [Analog Microelectronics], AM417 Datasheet - Page 6

• Manufacturer Part Number: AM417
• Description: RATIOMETRIC VOLTAGE TRANSMITTER
• Manufacturer: AME [Analog Microelectronics]

Figure 5
RATIOMETRIC VOLTAGE TRANSMITTER
APPLICATION FOR OUTPUT VOLTAGE 0.5...4.5V
The current application shows the basic functions of the AM417. With the given values of the ex-
ternal components (see List of External Components) the following application features are ad-
justed:
LIST OF EXTERNAL COMPONENTS
analog microelectronics
The information provided herein is believed to be reliable; however, Analog Microelectronics assumes no responsibility for inaccuracies or omissions. Analog Microelectronics assumes no responsibility
for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licences to any of
the circuits described herein are implied or granted to any third party. Analog Microelectronics does not authorise or warrant any Analog Microelectronics product use in life support devices and/or
systems.
Ground
• V
• G = G
• V
• I
• I
R
TCS
R
R
TCO1
OUT
BR
IN
OUT
O2
= 1mA (ratiometrical supply current for the pressure transducer)
R
R
= 100mV
= +10mA – 0.25mA
S
S
= 0.5 – 4.5V
R
IA
R
R
R
TCO1
S
S
R
Symbol
R
R
1
G
O1
R
TCO2
O1
T
R
R
R
R
R
C
C
C
TCS
, R
, R
OUT
1
1
2
3
4
S
1
2
3
O2
TCO2
V
IN
= 40
2
4
5
3
AM417
}
BCW68H, BC557C (or similar)
I
I
typical transducer resistor
TC span compensation
Offset adjustment
TC offset adjustment
± 10%
± 10%
BR
OUT
= 1 mA
= 10mA min (100°C)
Span (Gain adjustment)
V
OUT
= R
I
IA
BR
3
/ (R
Description
3
+ R
4
) G
OP
1
1R
9R
low drop, high β at10mA
V
Output
Stage
CC
0.1 – 10.0
3.0 (typ.)
10 – 120
0 – 500
Value
500
500
330
1.5
4.7
1.0
15
8
6
7
C
2
Unit
PNP
MΩ
C
kΩ
kΩ
kΩ
nF
nF
nF
Ω
Ω
Ω
Ω
R
R
AM417
1
4
3
T
1
R
2
April 99
V
C
V
OUT
6/6
3
S