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AD5700 Fiches technique(PDF) 3 Page - Analog Devices

No de pièce AD5700
Description  Low Power HART Modem
Download  20 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD5700 Fiches technique(HTML) 3 Page - Analog Devices

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Data Sheet
AD5700/AD5700-1
Rev. A | Page 3 of 20
SPECIFICATIONS
VCC = 2 V to 5.5 V, IOVCC = 1.71 V to 5.5 V, AGND = DGND, CLKOUT disabled, HART_OUT with 5 nF load, internal and external
receive filter, internal reference, all specifications are from −40°C to +125°C and relate to both A and B models, unless otherwise noted.
Table 2.
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
POWER REQUIREMENTS2
VCC
2
5.5
V
IOVCC
1.71
5.5
V
VCC and IOVCC Current Consumption
Demodulator
86
115
μA
B model, external clock, −40°C to +85°C
179
μA
B model, external clock, −40°C to +125°C
69
97
μA
B model, external clock, −40°C to +85°C,
external reference
157
μA
B model, external clock, −40°C to +125 °C,
external reference
260
μA
A model, external clock, −40°C to +125°C
Modulator
124
140
μA
B model, external clock, −40°C to +85°C
193
μA
B model, external clock, −40°C to +125°C
73
96
μA
B model, external clock, −40°C to +85°C,
external reference
153
μA
B model, external clock, −40°C to +125°C,
external reference
270
μA
A model, external clock, −40°C to +125°C
Crystal Oscillator3
33
60
μA
External crystal, 16 pF at XTAL1 and XTAL2
44
71
μA
External crystal, 36 pF at XTAL1 and XTAL2
Internal Oscillator4
218
285
μA
AD5700-1 only, external crystal not required
Power-Down Mode
RESET = REF_EN = DGND
VCC and IOVCC Current Consumption
16
35
μA
Internal reference disabled, −40°C to +85°C
75
μA
Internal reference disabled, −40°C to +125°C
INTERNAL VOLTAGE REFERENCE
Internal Reference Voltage
1.47
1.5
1.52
V
REF_EN = IOVCC to enable use of internal
reference
Load Regulation
18
ppm/μA
Tested with 50 μA load
OPTIONAL EXTERNAL VOLTAGE
REFERENCE
External Reference Input Voltage
2.47
2.5
2.53
V
REF_EN = DGND to enable use of external
reference, VCC = 2.7 V minimum
External Reference Input Current
Demodulator
16
21
μA
Current required by external reference in
receive mode
Modulator
28
33
μA
Current required by external reference in
transmit mode
Internal Oscillator
5.5
7
μA
Current required by external reference if
using internal oscillator
Power-Down
4.6
8.6
μA
DIGITAL INPUTS
VIH, Input High Voltage
0.7 × IOVCC
V
VIL, Input Low Voltage
0.3 × IOVCC
V
Input Current
−0.1
+0.1
μA
Input Capacitance5
5
pF
Per pin


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