IP200 ETC [List of Unclassifed Manufacturers], IP200 Datasheet - Page 7

• Manufacturer Part Number: IP200
• Description: Interpolation Circuit for Incremental Measuring Systems
• Manufacturer: ETC [List of Unclassifed Manufacturers]

3
The IP200 contains two integrated Analogue Digital Converter with a maximum sample rate of 1.25MS/s. In
some special applications, were the analogue sensor signal do not match the analogue front end (AFE)
specification (nominal 1V
inputs, bypassing the AFE. In this case, the conditioned sensor signals must be sine shaped with a
amplitude of 2.4V
reference voltage circuit that generates the V0 with a nominal voltage of 2.375V.
3.1
The following reference voltage levels appear on external pins:

For information about the tolerances see chapter Electrical Characteristics.
Positive Reference Voltage (V
Positive Reference Voltage (V
Negative Reference Voltage (V
Negative Reference Voltage (V
Midscale Voltage for external analogue circuitry V0
Nominal amplitude
Maximum voltage
Minimum voltage
D-09116 Chemnitz, Germany
A/D-Converter
Zwickauer Straße 227
Input Circuit Rating
Figure 4
GEMAC
Gesellschaft für
Mikroe lektronikanwendung Chemnitz mbH
V
V
RP
RN
: positive ADC-Reference Voltage
: negative ADC-Reference Voltage
Reserve for Gain- and Offset Errors
Reserve for Gain- and Offset Errors
pp
centred around the ADC common mode level V0. The IP200 includes a on-chip
V
V
MAX
V
pp
NOM
MIN
), it is possible to connect the input signals to the Analogue Digital Converter
= V
= 1.3 (V
= V
Phone:
Fax::
Internet:
Email:
Date: 20.04.04
RP
RP
0
RN
RN
+ (V
0
) Sine-ADC
) Cosine-ADC
- (V
) Sine-ADC
) Cosine-ADC
RP
RP
RP
- V
- V
- V
RN
RN
RN
[phone] - 0
[phone]
www.gemac-chemnitz.de
[e-mail]
[e-mail]
) (Nominal Amplitude
)
)
V
0
= ½ (V
RP
Pin
RSH
RCH
RSL
RCL
U
U
U
+ V
NOM
MAX
MIN
RN
Page 7 of 30
) (Midscale Voltage)
Peak-Peak
Nominal Value
3.30V
3.30V
1.45V
1.45V
2.375V
2.405V
4.225V
0.525V
)
Title:
Data Sheet GC-IP200
Name of Document:
43500-DB-2-1-E-IP200.pdf