Datasheet

Data Sheet AD5700/AD5700-1
Rev. F | Page 3 of 24
SPECIFICATIONS
V
CC
= 1.71 V to 5.5 V, IOV
CC
= 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.
Parameter
1
Min Typ Max Unit Test Conditions/Comments
POWER REQUIREMENTS
2
V
CC
1.71 5.5 V
IOV
CC
1.71 5.5 V
V
CC
and IOV
CC
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 Oscillator
3
33 60 µA External crystal, 16 pF at XTAL1 and XTAL2
44 71 µA External crystal, 36 pF at XTAL1 and XTAL2
Internal Oscillator
4
218 285 µA AD5700-1 only, external crystal not required
Power-Down Mode
RESET
= REF_EN = DGND
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 = IOV
CC
to enable use of internal
reference; V
CC
= 1.71 V minimum
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, V
CC
= 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
V
IH
, Input High Voltage 0.7 × IOV
CC
V
V
IL
, Input Low Voltage 0.3 × IOV
CC
V
Input Current −0.1 +0.1 µA
Input Capacitance
5
5 pF Per pin