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LT1175-5

Precision Micropower ∆∑ RMS-to-DC Converter

Linear Technology 

LTC1966

Absolute Maximum Ratings

(Note 1)

Supply Voltage

VDD to GND.............................................. – 0.3V to 7V

VDD to VSS ............................................. –0.3V to 12V

VSS to GND.............................................. –7V to 0.3V

Input Currents (Note 2)....................................... ±10mA

Output Current (Note 3)...................................... ± 10mA

ENABLE Voltage........................ VSS – 0.3V to VSS + 12V

OUT RTN Voltage................................ VSS – 0.3V to VDD

Operating Temperature Range (Note 4)

LTC1966C/LTC1966I.............................–40°C to 85°C

LTC1966H........................................... –40°C to 125°C

LTC1966MP........................................ –55°C to 125°C

Specified Temperature Range (Note 5)

LTC1966C/LTC1966I.............................–40°C to 85°C

LTC1966H........................................... –40°C to 125°C

LTC1966MP........................................ –55°C to 125°C

Maximum Junction Temperature.......................... 150°C

Storage Temperature Range.................. –65°C to 150°C

Lead Temperature (Soldering, 10 sec)................... 300°C

Pin Configuration

TOP VIEW

GND 1

IN1 2

IN2 3

VSS 4

8 ENABLE

7 VDD

6 OUT RTN

5 VOUT

MS8 PACKAGE

8-LEAD PLASTIC MSOP

TJMAX = 150°C, θJA = 220°C/W

Order Information

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC1966CMS8#PBF

LTC1966CMS8#TRPBF LTTG

8-Lead Plastic MSOP

0°C to 70°C

LTC1966IMS8#PBF

LTC1966IMS8#TRPBF LTTH

8-Lead Plastic MSOP

–40°C to 85°C

LTC1966HMS8#PBF

LTC1966HMS8#TRPBF LTTG

8-Lead Plastic MSOP

–40°C to 125°C

LTC1966MPMS8#PBF

LTC1966MPMS8#TRPBF LTTG

8-Lead Plastic MSOP

–55°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

Electrical Characteristics The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VDD = 5V, VSS = – 5V, VOUTRTN = 0V, CAVE = 10µF, VIN = 200mVRMS,

VENABLE = 0.5V unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP MAX UNITS

Conversion Accuracy

GERR

Conversion Gain Error

50Hz to 1kHz Input (Notes 6, 7)

LTC1966C, LTC1966I

LTC1966H, LTC1966MP

±0.1 ±0.3

%

l

±0.4

%

l

± 0.7

%

VOOS

Output Offset Voltage

(Notes 6, 7)

LTC1966C, LTC1966I

LTC1966H, LTC1966MP

0.1

0.2

mV

l

0.4

mV

l

0.6

mV

LINERR Linearity Error

50mV to 350mV (Notes 7, 8)

l

0.02 0.15

%

1966fb

2

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