AD6654BBC datasheet(6/88 Pages) AD

6 / 88 page

AD6654

Rev. 0 | Page 6 of 88

SPECIFICATIONS

RECOMMENDED OPERATING CONDITIONS

Table 1.

Parameter (Conditions)

Temp

Test Level

Min

Typ

Max

Unit

AVDD1

Full

4.75

5.0

5.25

DRVDD2

Full

3.0

3.3

3.6

VDDCORE

Full

1.65

1.8

1.95

VDDIO2

Full

3.0

3.3

3.6

TAMBIENT

−25

+25

+85

°C

1 Specified for dc supplies with linear rise-time <250 ms.

2 DRVDD and VDDIO can be operated from the same supply.

ADC DC SPECIFICATIONS

AVDD = 5.0 V, DRVDD = 3.3 V, VDDCORE = 1.8 V, VDDIO = 3.3 V, maximum rated sample rate, differential ENC and AIN, unless

otherwise noted.

Table 2.

Parameter (Conditions)

Temp

Test Level

Min

Typ

Max

Unit

RESOLUTION

Full

Bits

INTERNAL VOLTAGE REFERENCE (VREF)1

Output Voltage

Full

2.4

ANALOG INPUTS

Differential Input Voltage Range

Full

2.2

V p-p

Differential Input Capacitance

Full

1.5

Differential Input Resistance

Full

kΩ

Power Supply Rejection (PSRR)

25°C

±1.0

mV/V

1 VREF is provided for setting the common-mode offset of a differential amplifier such as the AD8138 when a dc-coupled analog input is required. VREF should be buffered

if used to drive additional circuit functions.

ADC DIGITAL SPECIFICATIONS

AVDD = 5.0 V, DRVDD = 3.3 V, VDDCORE = 1.8 V, VDDIO = 3.3 V, maximum rated sample rate, differential ADC input, unless

otherwise noted.

Table 3.

Parameter (Conditions)

Temp

Test Level

Min

Typ

Max

Unit

ENCODE INPUTS (ENC+, ENC−)

Differential Input Voltage

Full

0.4

V p-p

Differential Input Resistance

25°C

kΩ

Differential Input Capacitance

25°C

2.5

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