LMP91000

www.ti.com

SNAS506I – JANUARY 2011 – REVISED DECEMBER 2014

Electrical Characteristics (continued)

Zero = 20% VREF.

(1)

PARAMETER

TEST CONDITIONS

UNIT

Transimpedance gain accuracy

5%

Linearity

±0.05%

7 programmable gain resistors

2.75

3.5

7

TIA_GAIN

14

Programmable TIA Gains

k

Ω

35

120

350

Maximum external gain resistor

350

Internal zero voltage

3 programmable percentages of VREF

20%

50%

67%

TIA_ZV

3 programmable percentages of VDD

20%

50%

67%

Internal zero voltage Accuracy

±0.04%

RL

Programmable Load

4 programmable resistive loads

10

33

Ω

50

100

Load accuracy

5%

2.7 V

≤ VDD≤ 5.25

Internal zero 20% VREF

Power Supply Rejection Ratio at

V

PSRR

Internal zero 50% VREF

80

110

dB

RE pin

Internal zero 67% VREF

TEMPERATURE SENSOR SPECIFICATION (Refer to Table 1 in the Feature Description for details)

Temperature Error

TA= –40

˚C to 85˚C

–3

3

°C

Sensitivity

TA= –40

˚C to 85˚C

-8.2

mV/°C

Power on time

1.9

ms

EXTERNAL REFERENCE SPECIFICATION

VREF

External Voltage reference range

1.5

VDD

V

Input impedance

10

M

Ω

6.6 I

(1)

PARAMETER

TEST CONDITIONS

UNIT

Input High Voltage

–40 to 80°C

0.7*VDD

V

Input Low Voltage

–40 to 80°C

0.3*VDD

V

Output Low Voltage

0.4

V

–40 to 80°C

0.1*VDD

V

Input Capacitance on all digital pins

–40 to 80°C

0.5

pF

(1)

Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very

(2)

Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlations using

statistical quality control (SQC) method.

(3)

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.

(4)

This parameter is specified by design or characterization.

Copyright © 2011–2014, Texas Instruments Incorporated

Submit Documentation Feedback

7

Product Folder Links: LMP91000