AM452 – Voltage-to-current transducer IC
with a differential input
Parameter
V/I Converter
Internal Gain
Trim Range
Voltage Range at
R
0
FS
Offset Voltage
V
OS
vs. Temperature
Input Resistance
R
IN
vs. Temperature
Output Offset Current
I
OUTOS
vs. Temperature
Output Offset Current
I
OUTOS
vs. Temperature
Output Control Current
I
OUTC
vs. Temperature
Output Voltage Range
Output Current Range FS
Output Resistance
Load Capacitance
SET Stage
Internal Gain
Input Voltage
Offset Voltage
V
OS
vs. Temperature
Input Bias Current
I
B
vs. Temperature
Protective Functions
Voltage Limitation at
R
0
Protection against reverse polarity
Current in event of reverse polarity
System Parameters
Nonlinearity
3-dB-frequency
Statistical output impedance
Dynamical output impedance
f
3db
R
stat.
R
dyn.
Ideal input
R
L
= 600Ω,
C
2
= 1nF
R
L
=600Ω, C2 = 1nF,
For f= 2,2kHz, R
L
=600Ω,
C2 = 1nF,
0.05
0.15
5
4·10
3
3·10
3
%FS
kHz
MΩ
Ω
V
LIMR0
V
LIMR0
V
R0
=
V
IN
G
I
,
SET
=
GND
V
IN
= 0,
V
R0
=
V
SET
/2
Ground
vs.
V
S
vs.
V
OUT
Ground
vs.
V
S
vs.
I
OUT
Ground
= 35V,
V
S
=
I
OUT
= 0
4.5
580
V
REF
/8
635
690
35
35
mV
mV
V
V
mA
G
SET
V
SET
V
OS
dV
OS
/dT
I
B
dI
B
/dT
0
-4.0
-1.0
±1.6
8
7
0.5
1.15
+2.0
±5
20
18
V
mV
µV/°C
nA
pA/°C
V
R0
FS
V
OS
dV
OS
/dT
R
IN
dR
IN
/dT
I
OUTOS
dI
OUTOS
/dT
I
OUTOS
dI
OUTOS
/dT
I
OUTC
dI
OUTC
/dT
V
OUT
V
OUT
I
OUTFS
R
OUT
C
L
3-wire operation
3-wire operation
2-wire operation
2-wire operation
2-wire operation,
V
R0
/100mV
2-wire operation
V
OUT
=
R
L
I
OUT
,
V
CC
< 18V
V
OUT
=
R
L
I
OUT
,
V
CC
≥
18V
I
OUT
=
V
R0
/R
0
, 3-wire operation
0.5
0
0
0
20
1.0
500
G
VI
Adjustable by
R
0
0.122
0.60
320
0.125
1.00
540
±2
±7
120
0.2
160
0.3
–25
16
9.5
6
6
–10
–35
26
14
8
8
–15
V
CC
– 6
12
0.128
1.40
760
±4
±14
mV
mV
µV/°C
kΩ
kΩ/°C
µA
nA/°C
µA
nA/°C
µA
nA/°C
V
V
mA
MΩ
nF
Symbol
Conditions
Min.
Typ.
Max.
Unit
β
F
≥
100
β
F
≥
100
Table 1:
Specifications
Phone: +49 (0)6131/91 073-0
Fax:
+49 (0)6131/91 073-30
Internet:
http://www.analogmicro.de
Email: info@analogmicro.de
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
February 2008 - Rev 1.2 - Page 6/21
AME [ ANALOG MICROELECTRONICS ]
