LDC1041

www.ti.com

SNOSCY1 – MARCH 2014

6.5 Electrical Characteristics

(1)

(2)

PARAMETER

TEST CONDITIONS

UNIT

POWER

Analog supply voltage

4.75

5

5.25

V

IO supply voltage

1.8

3.3

5.25

V

1.7

2.3

mA

IO supply current

Static current

14

µA

Stand-by mode supply

250

µA

current

Start-Up Time

From POR to ready-to-convert.

2

ms

LDC

Minimum sensor frequency

5

kHz

5

MHz

1

4

Oscillation start-up time after Rp under-

Recovery time

10

range condition

Rp Min

Minimum sensor Rp range

798

Ω

Rp Max

Maximum Sensor Rp range

3.93

M

Ω

Rp Res

Rp measurement resolution

8

Bits

L Res

Inductance measurement

24

Bits

resolution

Minimum programmable settling time of

Minimum response time

s

digital filter

Maximum programmable settling time

6144 × 1 /

Maximum response time

s

of digital filter

EXTERNAL CLOCK

ƒ

External clock frequency

8

MHz

DIGITAL I/O CHARACTERISTICS

Logic 1 input voltage

V

0.2 ×

Logic 0 input voltage

V

Logic 1 output voltage

V

Logic 0 output voltage

0.3

V

Digital IO leakage current

–500

500

nA

(1)

Electrical Characteristics Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions

result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical

which the device may be permanently degraded, either mechanically or electrically.

(2)

The maximum power dissipation is a function of TJ(MAX),

θJA, and the ambient temperature, TA. The maximum allowable power

dissipation at any ambient temperature is PDMAX = (TJ(MAX) - TA)/

θJA. All numbers apply for packages soldered directly onto a PC

board. The package thermal impedance is calculated in accordance with JESD 51-7.

(3)

Limits are specified by testing, design, or statistical analysis at 25°C. Limits over the operating temperature range are specified through

correlations using statistical quality control (SQC) method.

(4)

Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary

over time and will also depend on the application and configuration. The typical values are not tested and are not specified on shipped

production material.

(5)

LC tank current depends on the Q-factor of the tank, distance and material of the target.

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