EVAL-AD5700-1EBZ Просмотр технического описания (PDF) - Analog Devices

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EVAL-AD5700-1EBZ

Low Power HART Modem

Analog Devices 

Data Sheet

AD5700/AD5700-1

SPECIFICATIONS

VCC = 1.71 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.

Parameter 1

POWER REQUIREMENTS2

VCC

IOVCC

VCC and IOVCC Current Consumption

Demodulator

Modulator

Crystal Oscillator 3

Internal Oscillator 4

Power-Down Mode

INTERNAL VOLTAGE REFERENCE

Internal Reference Voltage

Load Regulation

OPTIONAL EXTERNAL VOLTAGE

REFERENCE

External Reference Input Voltage

External Reference Input Current

Demodulator

Modulator

Internal Oscillator

Power-Down

DIGITAL INPUTS

VIH, Input High Voltage

VIL, Input Low Voltage

Input Current

Input Capacitance 5

Min

Typ Max

Unit

Test Conditions/Comments

1.71

5.5

V

1.71

5.5

V

86

115

179

69

97

157

260

124 140

193

73

96

153

270

33

60

44

71

218 285

16

35

75

µA

B model, external clock, −40°C to +85°C

µA

B model, external clock, −40°C to +125°C

µA

B model, external clock, −40°C to +85°C,

external reference

µA

B model, external clock, −40°C to +125 °C,

external reference

µA

A model, external clock, −40°C to +125°C

µA

B model, external clock, −40°C to +85°C

µA

B model, external clock, −40°C to +125°C

µA

B model, external clock, −40°C to +85°C,

external reference

µA

B model, external clock, −40°C to +125°C,

external reference

µA

A model, external clock, −40°C to +125°C

µA

External crystal, 16 pF at XTAL1 and XTAL2

µA

External crystal, 36 pF at XTAL1 and XTAL2

µA

AD5700-1 only, external crystal not required

RESET = REF_EN = DGND

µA

Internal reference disabled, −40°C to +85°C

µA

Internal reference disabled, −40°C to +125°C

1.47

1.5

1.52

V

REF_EN = IOVCC to enable use of internal

reference; VCC = 1.71 V minimum

18

ppm/µA Tested with 50 µA load

2.47

2.5

2.53

V

16

28

5.5

4.6

0.7 × IOVCC

−0.1

5

21

µA

33

µA

7

µA

8.6

µA

V

0.3 × IOVCC V

+0.1

µA

pF

REF_EN = DGND to enable use of external

reference, VCC = 2.7 V minimum

Current required by external reference in

receive mode

Current required by external reference in

transmit mode

Current required by external reference if

using internal oscillator

Per pin

Rev. G | Page 3 of 24

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