ADP1046DC1-EVALZ Analog Devices, ADP1046DC1-EVALZ Datasheet - Page 59
ADP1046DC1-EVALZ
Manufacturer Part Number
ADP1046DC1-EVALZ
Description
Daughter Cards & OEM Boards ADP1046 Daughter Card
Manufacturer
Analog Devices
Series
ADP1046r
Datasheet
1.ADP1046DC1-EVALZ.pdf
(92 pages)
Specifications of ADP1046DC1-EVALZ
Rohs
yes
Product
Daughter Cards
Description/function
100 kHz daughter board
Interface Type
I2C
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
3.3 V
Factory Pack Quantity
1
For Use With
ADP1046
- Current page: 59 of 92
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Data Sheet
Table 46. Register 0x2E—Modulation Limit
Bits
7
[6:0]
Table 47. Register 0x2F—OTP Threshold
Bits
[7:0]
Bit Name
OTP threshold
Bit Name
Full-bridge mode
Modulation limits
R/W
R/W
R/W
R/W
R/W
Description
This register, adding 0 as the MSB, results in a 9-bit OTP threshold value. This 9-bit value is compared to
the nine MSBs of the RTD ADC reading. If the RTD ADC reading is lower than the threshold set by these
bits, the OTP flag is set. This 8-bit register provides 256 threshold settings from 0 mV to 800 mV. One LSB
equates to 800 mV/256 = 3.125 mV. Some of the threshold settings at the high and low ends of the
range are not allowed. The OTP flag has a hysteresis of 16 mV.
Bit 7
0
0
0
0
0
0
…
1
1
…
1
Description
Enable this bit when operating in full-bridge mode. It affects the modulation high limit.
This value sets the minimum/maximum modulation limits relative to the nominal edge value. The
resolution depends on the switching frequency range.
Switching Frequency Range
48.8 kHz to 86.8 kHz
97.7 kHz to 183.8 kHz
195 kHz to 378.8 kHz
390.6 kHz to 625.0 kHz
Bit 6
0
0
0
0
0
0
…
1
1
…
1
…
…
…
…
…
…
…
…
…
…
…
…
Rev. B | Page 59 of 92
Bit 3
0
0
0
0
0
0
…
1
1
…
1
Bit 2
0
0
0
0
1
1
…
0
0
…
1
Resolution Corresponding to LSB
160 ns
80 ns
40 ns
20 ns
Bit 1
0
0
1
1
0
0
…
0
1
…
1
Bit 0
0
1
0
1
0
1
…
1
0
…
1
OTP Limit (mV)
0
3.125
6.25
9.375
12.5
15.625
…
778.125
781.25
796.875
ADP1046
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