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54F175DMQB Arkusz danych(PDF) 4 Page - Texas Instruments

Numer części 54F175DMQB
Szczegółowy opis  LMP91050 Configurable AFE for Nondispersive Infrared (NDIR) Sensing Applications
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54F175DMQB Arkusz danych(HTML) 4 Page - Texas Instruments

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LMP91050
SNAS517D – NOVEMBER 2011 – REVISED MARCH 2013
www.ti.com
Operating Ratings
(1)
Supply Voltage
2.7V to 5.5V
Junction Temperature Range
(2)
-40°C to 105°C
Package Thermal Resitance,
θJA
10 Lead VSSOP
176 °C/W
(1)
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Operating Ratings is not implied. Operating Ratings indicate conditions at which the
device is functional and the device should not be operated beyond such conditions.
(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.
Electrical Characteristics
(1)
The following specifications apply for VDD = 3.3V, VCM = 1.15V, Bold values for TA = -40°C to +85°C unless otherwise
specified. All other limits apply to TA = TJ = +25°C.
Symbol
Parameter
Conditions
Min (2)
Typ (3)
Max (2)
Units
Power Supply
VDD
Supply Voltage
2.7
3.3
5.5
V
IDD
Supply Current
All analog block ON
3.1
3.7
4.2
mA
Power Down Supply Current
All analog block OFF
45
85
121
μA
Offset Cancellation (Offset DAC)
Resolution
256
steps
LSB
All gains
33.8
mV
DNL
-1
2
LSB
Error
Output referred offset error, all gains
±100
mV
VDD –
Offset adjust Range
Output referred, all gains
0.2
V
0.2
DAC settling time
480
μs
Programmable Gain Amplifier (PGA) 1st Stage, RL = 10kΩ, CL = 15pF
IBIAS
Bias Current
5
200
pA
VINMAX
Max input signal High gain
Referenced to CMOUT voltage, it refers to the
±2
mV
_HGM
mode
maximum voltage at the IN pin before clipping; It
includes dark voltage of the thermopile and
VINMAX
Max input signal Low gain
±12
mV
signal voltage.
_LGM
mode
VOS
Input Offset Voltage
-165
µV
G _HGM
Gain High gain mode
250
V/V
G_LGM
Gain Low gain mode
42
V/V
GE
Gain Error
Both HGM and LGM
2.5
%
VDD –
VOUT
Output Voltage Range
0.5
0.5
V
1mV input step signal, HGM, Vout measured at
PhDly
Phase Delay
6
μs
Vdd/2
Phase Delay variation with
1mV input step signal, HGM, Vout measured at
TCPhDly
416
ns
Temperature
Vdd/2,
SSBW
Small Signal Bandwidth
Vin = 1mVpp, Gain = 250 V/V
18
kHz
Cin
Input Capacitance
100
pF
(1)
Electrical 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 ensured specification of parametric performance is indicated in the electrical
tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond
which the device may be permanently degraded, either mechanically or electrically.
(2)
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured 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 ensured on shipped
production material.
4
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Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: LMP91050


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