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ZMT32 Datasheet(PDF) 3 Page - Diodes Incorporated

Part # ZMT32
Description  Magnetic Field Angle Sensor
PDF  10 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZMT32 Datasheet(HTML) 3 Page - Diodes Incorporated

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ZMT32
Issue 1 - June 2008
3
www.zetex.com
© Zetex Semiconductors plc 2008
Electrical characteristics
General test conditions (unless otherwise noted)
TA= +23±5oC, VCC1=VCC2 = +5V, HROT=25kA/m(†), k=100•(VPO1/VPO2) with VCC1=VCC2
A:
Output characteristic definitions
∆VO1/VCC1 = (VOMAX1 – VOMIN1)/VCC1 or/ ∆VO2/VCC2 = (VOMAX2 – VOMIN2)/VCC2
VOFF1/VCC1 = ½(VOMAX1 + VOMIN1)/VCC1 or/ VOFF2/VCC2 = ½(VOMAX2 + VOMIN2)/VCC2
∆αH = MAX | αLEFT TURN – αRIGHT TURN |
(max. angular difference between left and right turn)
∆α = MAX | αo – α |
(max. angular difference between actual value αoand measured angle,
without offset error)
B: Temperature coefficient (TC) equations
T1 = -25°C,
T0 = +25°C,
T2 = +125°C
where
is the peak-peak output voltage at temperature Tn
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP (*)
NOTES:
(*) Typical values apply to an ambient temperature of 23oC
MAX
UNIT
Sα1 or Sα2 Sensitivities (zero crossing)
α1=135°, α2=0°
0.35
mV/V/deg
VPO1 or VPO2
Peak Output Voltages
(sinusoidal signals)
40
50
60
mV
k
Amplitude bridge matching
99.77
100
100.23
%
TCk
Temperature coefficient of
amplitude bridge matching
TA = -40 to +160°C
-0.008
+0.008
%/K
RB1
or
RB2
Bridge resistances
no HROT
TA = -40°C
2017
3040
Ω
TA = 23°C
2500
3000
3600
TA = +160°C
3345
5114
TCRBB
TC of Bridge Resistances
+0.28
+0.32
+0.36
%/K
∆VO1/VCC1A
or
∆VO2/VCC2A
Peak to peak output swing
TA = -40°C
19.2
30.4
mV/V
TA = 23°C
16
20
24
TA = +160°C
6.7
13.4
HROT = 8 kA/m(†)
TA = 23°C
16
20
24
TCVOB
TC of peak to peak output
swing
-0.35
-0.32
-0.28
%/K
VOFF1/VCC1A
or
VOFF2/VCC2A
Output offset voltage
TA = -40°C
-1.25
+1.25
mV/V
TA = +160°C
-1.55
+1.55
HROT = 8 kA/m (†)
(†) See point “Magnetic Field Tests” below
TA = 23°C
-1
0
+1
no HROT
-2
0
+2
TCVOFFB
TC of output offset voltage
-4
0
+4
µV/V/K
∆αA
Angular Inaccuracy
0.05
0.2
deg
∆αHA
Angular hysteresis
0.1
deg
HROT = 8 kA/m(†)
0.5 (‡)
(‡) The accurate control of this parameter (Limmax=0.1deg, HROT=25kA/m) takes place by means of sample tests
deg
Iiso1-2
Isolation Bridge Current
no HROT
00.1
µA
%
100
)
T
(
V
V
)
T
(
V
V
)
T
(
V
V
T
T
1
TCV
0
CC
O
1
CC
O
2
CC
O
1
2
O
×
Δ
Δ
−
Δ
×
−
=
)
T
(
V
V
n
CC
O
Δ



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