AM417 Datasheet, PDF (1/6 Pages) Analog Microelectronics – RATIOMETRIC VOLTAGE TRANSMITTER

RATIOMETRIC VOLTAGE TRANSMITTER AM417
FEATURES
• Supply Voltage 5V±5% (Ratio Range)
• Wide Operating Temperature Range:
–40°C...+100°C
• Ratiometrical Current Source for
Transducer Excitation
• Instrumentation Amplifier Input
• Voltage Output Driver
Open Collector:
V_OUT = 0.5–4.5V
I_OUT = +10mA
• Adjustable Gain, Offset, and Output
Voltage Range
• Small Package Dimensions: SO8
• Low Cost
APPLICATIONS
• Industrial Process Control
• Automotive Applications
• Sensor Transmitter
GENERAL DESCRIPTION
The AM417 is a low cost ratiometrical voltage
transmitter, designed for flexible bridge input
signal conditioning. The IC contains a ra-
tiometric current source for transducer excita-
tion, a high accuracy instrumentation amplifier
for differential input signals, and a voltage out-
put driver. Gain, offset, and output voltage
range are adjustable by external resistors. The
voltage output stage is designed as an open col-
lector stage. The output current is +10mA. A
simple current limitation is possible by adding
an external resistor. With its functional blocks
and possibilities to adjust all important pa-
rameters for sensor calibration, the small pack-
age dimensions (SO8), and the low costs the
AM417 is ideally suited for automotive sensor
interface applications.
DELIVERY
• DIL8 packages (samples)
• SOP8 packages
• Dice on 5“ blue foil
BLOCK DIAGRAM
AM417
IB
I_BR
2
IN+
4
IN− ₅
IA
RB ³
Figure 1
9R _VCC
OP
1R
1
GND
Output
Stage
analog microelectronics
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Internet: www.analogmicro.de
Phone: [phone] – 0
Fax: [phone] – 30
E–Mail: [e-mail]
VCC
8
VOUT
7
VR
6
April 99
1/6
Rev. 2.1