iC-MN 25-BIT NONIUS ENCODER
WITH 3-CH. SAMPLING 13-BIT Sin/D INTERPOLATION
Rev D1, Page 10/59
ELECTRICAL CHARACTERISTICS
Operating conditions: VDD = VACO = 5 V ±10 %, Tj = -40...125 °C,
IBP calibrated to 200 µA, reference point GNDA (GND for digital I/O pins), unless otherwise stated
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
Sample-&-Hold Stage, Signal Filter and Sine-To-Digital Conversion
601
fc1()
Cut-off Frequency of M/S/N
Channel Signal Filter
(-3 dB lowpass filter)
ENF(1) = 1;
fin (master channel) < 20 Hz
fin (master channel) > 1300 Hz
4
300
kHz
kHz
602 amax
Permissible Angle Acceleration
for 3(2) track nonius calculation
ENF(1) = 1
1000
Mrad/s2
603 AAabs
604 AAR
Absolute Angular Accuracy
Repeatability
Used bit length UBL_x = 0x0D: 13 bit
±2
±1
LSB
LSB
605
tcnv
Used bit length UBL_x:
0x0D: 13 bit
0x0C: 12 bit
0x0B: 11 bit
0x0A: 10 bit
0x09: 9 bit
0x08: 8 bit
0x07: 7 bit
0x06: 6 bit
0x05: 5 bit
Conversion Time (1 Channel)
4.25
3.88
3.5
3.13
2.75
2.5
2.25
2.0
1.75
1.5
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
0x04: 4 bit
606 trec()
Recovery Time Sampling-to-
Sampling
termination of calculation and synchronization
(Nonius or MT modes) to follow-up S&H trigger
1.25
300
µs
Analog Line Driver Outputs: PSOUT, NSOUT, PCOUT, NCOUT
701 Vout()
702
Output Amplitude
RLdiff = 100 Ω, VDD = 4.5 V, DC level = VDD/2
mV
fc2()
Cut-off Frequency of Line Driver
Signal Filter
(-3 dB lowpass filter)
ENF(0) = 1;
fin (master channel) < 20 Hz
fin (master channel) > 1300 Hz
8
600
kHz
kHz
703 fc3()
Cut-off Frequency of Line Driver CL = 500 pF, Vpp = 0.5 V, ENF0 = 1
(-3 dB)
500
kHz
704 Voffs()
705 Isc()hi
706 Isc()lo
707 SR()
708 Ilk()
Offset Voltage
-8
-40
15
8
mV
mA
mA
V/µs
µA
Short-circuit Current hi
Short-circuit Current lo
Slew Rate
V() = GND
-20
20
5
-15
40
V() = VDD
RLdiff = 100 Ω, CL = 25 pF
Residual Current with Reverse
Polarity
-50
50
2
709 Vout()err
Output Signal with Temperature VTs > VTth
Error
50
5
%VDD
710 Rout()
Output Impedance
Op.Mode ANA_M, ANA_N, ANA_S
kΩ
711 fout()cal
Permissible Output Frequency
During Calibration
Op.Mode ANA_M, ANA_N, ANA_S;
CL = 200 pF
kHz
Bias Current Source and Reference Voltages
801 IBP
Bias Current Source
IBP calibrated to 200 µA
referenced to GNDA
referenced to GNDA
referenced to GNDA
92.5
48
100
50
107.5
52
%
802 VPAH
803 V05
804 V025
Reference Voltage VPAH
Reference Voltage V05
Reference Voltage V025
%VDD
mV
460
512
50
570
%V05
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