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LTC1669IMS8#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTC1669
1
1669fa
BLOCK DIAGRAM
FEATURES
APPLICATIONS
DESCRIPTION
10-Bit Rail-to-Rail
Micropower DAC with
I
2
C Interface
The LTC
®
1669 is a 10-bit voltage output DAC with true
buffered rail-to-rail output voltage capability. It operates
from a single supply with a range of 2.7V to 5.5V. The
reference for the DAC is selectable between the supply
voltage or an internal bandgap reference. Selecting the
internal bandgap reference will set the full-scale output
voltage range to 2.5V. Selecting the supply as the reference
sets the output voltage range to the supply voltage.
The part features a simple 2-wire serial interface compat-
ible with I
2
C that allows communication between many
devices. The internal data registers are double buffered to
allow for simultaneous update of several devices at once.
The DAC can be put in low current power-down mode for
use in power conscious systems.
Power-on reset ensures the DAC output is at 0V when
power is initially applied, and all internal registers are
cleared. The LTC1669 is pin-for-pin compatible with the
LTC1663.
For SMBus-compatible designs, please refer to the
LTC1663.
Differential Nonlinearity (DNL)
n
Micropower 10-Bit DAC in SOT-23
n
Low Operating Current: 60μA
n
Ultralow Power Shutdown Mode: 12μA
n
2-Wire Serial Interface Compatible
with I
2
C™
n
Selectable Internal Reference or Ratiometric to
V
CC
n
Maximum DNL Error: 0.75LSB
n
8 User Selectable Addresses (MSOP Package)
n
Single 2.7V to 5.5V Operation
n
Buffered True Rail-to-Rail Voltage Output
n
Power-On Reset
n
1.5V V
IL
and 2.1V V
IH
for SDA and SCL
n
Small 5-Lead TSOT-23 and 8-Lead MSOP Packages
n
Digital Calibration
n
Offset/Gain Adjustment
n
Industrial Process Control
n
Automatic Test Equipment
n
Arbitrary Function Generators
n
Battery-Powered Data Conversion Products
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
10-BIT
DAC LATCH
INPUT
LATCH
2-WIRE INTERFACE
SDA
AD0
(6)
MSOP
PACKAGE
ONLY
(2)
(3)
AD1
AD2
SCL
1 (1) 5 (4)
GND
2 (7)
V
OUT
3 (8)
1669 BD
V
CC
1.25V
4 (5)
BANDGAP
REFERENCE
REFERENCE
SELECT
COMMAND
LATCH
NOTE: PIN NUMBERS IN PARENTHESES REFER TO THE MSOP PACKAGE
10-BIT BUFFERED V
OUT
DAC
CODE
0
–1.0
ERROR (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
156
512
640
1669 G02
–0.6
0.6
0.8
0.2
28 384
768
896
1024
V
REF
= V
CC
= 5V
T
A
= 25°C
LTC1669
2
1669fa
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND .............................................. –0.3V to 7.5V
SDA, SCL ................................................. –0.3V to 7.5V
AD0, AD1, AD2 (MSOP Only) ........–0.3V to (V
CC
+ 0.3V)
V
OUT
.............................................–0.3V to (V
CC
+ 0.3V)
(Note 1)
1
2
3
4
SDA
AD1
AD2
SCL
8
7
6
5
V
OUT
GND
AD0
V
CC
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 150°C/W
SDA 1
GND 2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC SOT-23
V
OUT
3
5 SCL
4 V
CC
T
JMAX
= 125°C, θ
JA
= 250°C/W
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1669CMS8#PBF LTC1669CMS8#TRPBF LTAHV 8-Lead Plastic MSOP 0°C to 70°C
LTC1669IMS8#PBF LTC1669IMS8#TRPBF LTAHX 8-Lead Plastic MSOP –40°C to 85°C
LTC1669-8CMS8#PBF LTC1669-8CMS8#TRPBF LTAHT 8-Lead Plastic MSOP 0°C to 70°C
LTC1669-8IMS8#PBF LTC1669-8IMS8#TRPBF LTAHU 8-Lead Plastic MSOP –40°C to 85°C
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1669CS5#TRMPBF LTC1669CS5#TRPBF LTAHW 5-Lead Plastic TSOT-23 0°C to 70°C
LTC1669-1CS5#TRMPBF LTC1669-1CS5#TRPBF LTAHR 5-Lead Plastic TSOT-23 0°C to 70°C
TRM = 500 pieces.
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
Operating Temperature Range
LTC1669C ............................................... 0°C to 70°C
LTC1669I............................................. –40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C
LTC1669
3
1669fa
ELECTRICAL CHARACTERISTICS
The ● denotes specifi cations which apply over the full operating tempera-
ture range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
CC
set as reference, V
OUT
unloaded, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DAC
Resolution
l
10 Bits
Monotonicity (Note 2)
l
10 Bits
DNL Differential Nonlinearity Guaranteed Monotonic (Note 2)
l
±0.2 ±0.75 LSB
INL Integral Nonlinearity (Note 2)
l
±0.5 ± 2.5 LSB
V
OS
Offset Error Measured at Code 20
l
±10 ±30 mV
V
OSTC
Offset Error Temperature Coeffi cient ±15 μV/°C
FSE Full-Scale Error Reference Set to V
CC
Reference Set to Internal Bandgap
l
l
±3
±3
±15
±15
LSB
LSB
V
OUT
DAC Output Span Reference Set to V
CC
Reference Set to Internal Bandgap
0 to V
CC
0 to 2.5
V
V
V
FSTC
Full-Scale Voltage Temperature
Coeffi cient
Reference Set to V
CC
Reference Set to Internal Bandgap
±30
±50
μV/°C
μV/°C
PSRR Power Supply Rejection Ratio Reference Set to Internal Bandgap,
Code = 1023
±0.4 LSB/V
Power Supply
V
CC
Positive Supply Voltage
l
2.7 5.5 V
I
CC
Supply Current V
CC
= 3V (Note 3)
V
CC
= 5V (Note 3)
l
l
60
75
100
125
μA
μA
I
SD
Supply Current in Shutdown Mode (Note 3)
l
12 24 μA
Op Amp DC Performance
Short-Circuit Current (Sourcing) V
OUT
Shorted to GND, Input Code = 1023
l
25 100 mA
Short-Circuit Current (Sinking) V
OUT
Shorted to V
CC
, Input Code = 0
l
30 120 mA
Output Impedance to GND Input Code = 0, V
CC
= 5V
Input Code = 0, V
CC
= 5V
In Shutdown Mode
65
150
500
Ω
Ω
kΩ
Output Impedance to V
CC
Input Code = 1023, V
CC
= 5V
Input Code = 1023, V
CC
= 5V
80
120
Ω
Ω
AC Performance
Voltage Output Slew Rate Rising (Notes 4, 5)
Falling (Notes 4, 5)
0.75
0.25
V/μs
V/μs
Voltage Output Settling Time To ±0.5LSB (Notes 4, 5) 30 μs
Digital Feedthrough 0.75 nV•s
Digital-to-Analog Glitch Impulse 1LSB Change Around Major Carry 70 nV•s
Digital Inputs SCL, SDAs
V
IH
High Level Input Voltage
l
2.1 V
V
IL
Low Level Input Voltage
l
1.5 V
V
LT H
Logic Threshold Voltage 1.8 V
I
LEAK
Digital Input Leakage V
CC
= 5.5V and 0V, V
IN
= GND to V
CC
l
±1 μA
C
IN
Digital Input Capacitance (Note 7)
l
10 pF
Digital Output SDA
V
OL
Digital Output Low Voltage I
PULLUP
= 3mA
l
0.4 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTC1669IMS8#TRPBF

Mfr. #:
Buy LTC1669IMS8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC Single I2C 10-Bit DAC in MSOP
Lifecycle:
New from this manufacturer.
Delivery:
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