AD5700 datasheet(3/24 Pages) AD

Numer części	AD5700

Szczegółowy opis	Low Power HART Modem

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Data Sheet

AD5700/AD5700-1

Rev. D | Page 3 of 24

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.

Parameter1

Min

Typ

Max

Unit

Test Conditions/Comments

POWER REQUIREMENTS2

VCC

1.71

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

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; VCC = 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, 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

Podobny numer części - AD5700

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