ADC3641 datasheet(6/77 Pages) TI

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6.5 Electrical Characteristics - Power Consumption

Typical values are over the operating free-air temperature range, at TA = 25°C, full temperature range is TMIN = –40°C to T

MAX = 105°C, ADC sampling rate = 65 MSPS, 50% clock duty cycle, AVDD, IOVDD = 1.8 V, external 1.6V reference, 5 pF

output load, and –1-dBFS differential input, unless otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ADC3641 - 10 MSPS

IAVDD

Analog supply current

External reference

IIOVDD

I/O supply current(1)

DDR CMOS

PDIS

Power dissipation(1)

External reference, DDR CMOS

IIOVDD

I/O supply current(1)

Serial CMOS 2-wire

TBD

Serial CMOS 1-wire

TBD

4x complex decimation, Serial CMOS

2-wire

TBD

ADC3642 - 25 MSPS

IAVDD

Analog supply current

External reference

IIOVDD

I/O supply current(1)

DDR CMOS

PDIS

Power dissipation(1)

External reference, DDR CMOS

IIOVDD

I/O supply current(1)

Serial CMOS 2-wire

TBD

4x complex decimation, Serial CMOS

2-wire

TBD

ADC3643 - 65 MSPS

IAVDD

Analog supply current

External reference

IIOVDD

I/O supply current(1)

DDR CMOS

PDIS

Power dissipation(1)

External reference, DDR CMOS

144

176

IIOVDD

I/O supply current(1)

8x complex decimation, Serial CMOS

2-wire

IIOVDD

16x complex decimation, Serial CMOS

1-wire

IIOVDD

32x complex decimation, Serial CMOS

1-wire

IIOVDD

32x complex decimation, Serial CMOS

1/2-wire

MISCELLANEOUS

IAVDD

Internal reference, additional analog

supply current

FS = 10 MSPS

FS = 25 MSPS

1.5

FS = 65 MSPS

External 1.2V reference (REFBUF),

additional analog supply current

Enabled via SPI

0.3

Single ended clock input, reduces

analog supply current by

0.7

PDIS

Power consumption in global power

down mode

Default power down mask, internal

reference

Default power down mask, external

reference

(1)

Measured with a 2 MHz input frequency full-scale sine wave at specified sample rate, with ~ 5 pF loading on each CMOS output pin.

ADC3643

SBAS886 – OCTOBER 2020

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