AM447
AM447 is High Precision Instrumentation Amplifier manufactured by Unknown Manufacturer.
FEATURES
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- Very Low Offset Voltage: < 25µV Low Input Bias Current: ≤ 5n A High Input Sensitivity High CMRR: > 90d B min Wide Operating Temperature Range:
- 40°C...+140°C Adjustable Rail- to- Rail Voltage Output Stage: 0 4.5V Single Supply Device (ratiometric) Integrated Source and Sink Capability: ±2m A Low Noise Behaviour
GENERAL DESCRIPTION
The AM447 is a high precision amplifier, designed for amplification of sensor bridge signals up to 35m V full scale. The single supply circuit consists of a high precision instrumentation amplifier (IA) and an integrated ratiometric output stage. Input offset voltages less than ±25µV (±1µV/°C) are adjustable by only two externally trimmable resistors. The monitoring of the amplified signal is possible at the output of the IA and makes the adjustment easier. With the externally adjustable gain of the output stage, the AM447 can be used for different signal sources. The 2m A sink and source capability makes it ideal for high precision applications specially in the field of automotive sensors.
APPLICATIONS
- Small Signal (Bridge) Amplifier Low Pressure Sensors Automotive Applications DMS Interface Interface for Ceramic Sensors
- High Precision Amplifier Medical Instrumentation Data Acquisition
DELIVERY
- DIL16 packages (samples, small quantities)
- SO16(n) packages
- Dice on 5“ blue foil
BLOCK DIAGRAM
OC1 OC2
1 2 14
IN+
IN3
1k
Output Stage
GAIN
19k
RSET
VREFIN VREF IAOUT
VSET
Figure 1 analog microelectronics
Analog Microelectronics Gmb H An der Fahrt 13, D
- 55124 Mainz Internet: .analogmicro.de Phone: +49 (0)6131/91 073
- 0 Fax: +49 (0)6131/91 073
- 30 E- Mail: info@analogmicro.de
April 2000 1/6 Rev....
