Datasheet
Table Of Contents
- Features
- Applications
- Description
- Typical Application
- Absolute Maximum Ratings
- Pin Configuration
- Order Information
- Electrical Characteristics
- Typical Performance Characteristics
- Pin Functions
- Functional Diagram
- Timing Diagram
- Operation
- Applications Information
- Typical Applications
- Package Description
- Revision History
- Typical Application
- Related Parts

LTC2991
2
2991fd
For more information www.linear.com/LTC2991
pin conFiguraTionabsoluTe MaxiMuM raTings
Supply Voltage (V
CC
) ................................ –0.3V to 6.0V
Input Voltages V1, V2, V3, V4, V5, V6, V7, V8,
SCL, ADR0, ADR1, ADR2
..............–0.3V to (V
CC
+ 0.3V)
Output Voltage PWM ....................–0.3V to (V
CC
+ 0.3V)
Output Voltage SDA ..................................... –0.3V to 6V
Operating Temperature Range
LTC2991C ................................................ 0°C to 70°C
LTC2991I .............................................–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MS Package .......................................................... 300°C
(Note 1)
1
2
3
4
5
6
7
8
V1
V2
V3
V4
V5
V6
V7
V8
16
15
14
13
12
11
10
9
V
CC
ADR2
ADR1
ADR0
PWM
SCL
SDA
GND
TOP VIEW
MS PACKAGE
16-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 120°C/W
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2991CMS#PBF LTC2991CMS#TRPBF 2991 16-Lead Plastic MSOP 0°C to 70°C
LTC2991IMS#PBF LTC2991IMS#TRPBF 2991 16-Lead Plastic MSOP –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
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
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
General
V
CC
Input Supply Range
l
2.9 5.5 V
I
CC
Input Supply Current During Conversion, I
2
C Inactive
l
1.1 1.5 mA
I
SD
Input Supply Current Shutdown Mode, I
2
C Inactive
l
1 6 µA
V
CC(UVL)
Input Supply Undervoltage Lockout
l
1.3 2.0 2.6 V
Measurement Accuracy
T
INTERNAL(TUE)
Internal Temperature Total Unadjusted Error ±1 ±3.5 °C
T
RMT(TUE)
Remote Diode Temperature Total Unadjusted
Error
η = 1.004
l
±0.7 ±1.5 °C
V
CC(TUE)
V
CC
Voltage Total Unadjusted Error 2.9V ≤ 5.5V
l
±0.05 ±0.25 %
V
N(TUE)
V1 Through V8 Total Unadjusted Error 0V ≤ 4.9V
l
±0.05 ±0.25 %
V
DIFF(TUE)
Differential Voltage Total Unadjusted Error
V1 – V2 ,V3 – V4, V5 – V6, V7 – V8
–300mV≤ V
D
≤300mV
l
±0.1 ±0.75 %
V
DIFF(MAX)
Full-Scale Differential Voltage
l
–312.5 312.5 mV
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C, V
CC
= 3.3V, unless otherwise noted.