ADS1675

SBAS416D – DECEMBER 2008 – REVISED AUGUST 2010

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ELECTRICAL CHARACTERISTICS (continued)

All specifications are at TA = –40°C to +85°C, AVDD = 5V, DVDD = 3V, fCLK = 32MHz, VREF = +3V, and RBIAS = 7.5kΩ,

unless otherwise noted.

ADS1675

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL FILTER CHARACTERISTICS (LOW-LATENCY PATH)

Bandwidth

–3dB attenuation

See the Low-Latency Filter section

Settling time

Complete settling

See Table 5

VOLTAGE REFERENCE INPUTS

Reference input voltage (VREF)

VREF = (VREFP – VREFN)

2.75

3.0

3.5

V

VREFP

2.75

3.0

3.5

V

VREFN

Short to AGND

V

CLOCK (CLK)

VIH

0.7AVDD

AVDD

V

VIL

AGND

0.3AVDD

V

DIGITAL INPUTS

VIH

0.7DVDD

DVDD

V

VIL

DGND

0.3DVDD

V

Input leakage

DGND < VIN < DVDD

±10

mA

CMOS OUTPUTS

VOH

IOH = –2mA

0.8DVDD

V

VOL

IOL = 2mA

0.2DVDD

V

LVDS OUTPUTS

|VOD(SS)|

Steady-state differential output voltage magnitude

340

mV

Change in steady-state differential output voltage

Δ|VOD(SS)|

±50

mV

magnitude between logic states

VOC(SS)

Steady-state common-mode voltage output

1.2

V

Change in steady-state common-mode output

Δ|VOC(SS)|

±50

mV

voltage between logic states

Peak-to-peak change in

VOC(pp)

50

150

mV

common-mode output voltage

VOY or VOZ = 0V

3

mA

Short-circuit output current (IOS)

VOD = 0V

3

mA

High-impedance output current (IOZ)

VO = 0V or +DVDD

±5

mA

Load

5

pF

POWER-SUPPLY REQUIREMENTS

AVDD

4.75

5.0

5.25

V

DVDD

2.85

3.0

3.15

V

AVDD current

70

74

mA

CMOS outputs, DVDD = 3V, DRATE = 011

53

59

mA

DVDD current

LVDS outputs, DVDD = 3V, DRATE = 101

70

74

mA

CMOS outputs, DRATE = 011,

510

545

mW

AVDD = 5V, DVDD = 3V

Power dissipation

LVDS outputs, DRATE = 101,

575

600

mW

AVDD = 5V, DVDD = 3V

Power-down

5

mW

4

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