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LTC1669-8IMS8

Description
DAC 1-CH 10-bit 8-Pin MSOP
File Size154KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC1669-8IMS8 Overview

DAC 1-CH 10-bit 8-Pin MSOP

LTC1669-8IMS8 Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
SVHCYes
SVHC Exceeds ThresholdYes
Converter TypeGeneral Purpose
Resolution10bit
Number of DAC Channels1
Number of Outputs per Chip1
Maximum Settling Time (us)30(Typ)
Digital Interface TypeSerial (2-Wire, I2C)
Output TypeVoltage
Output PolarityUnipolar
Voltage ReferenceInternal|Supply
Minimum Single Supply Voltage (V)2.7
Typical Single Supply Voltage (V)3.3|5
Maximum Single Supply Voltage (V)5.5
Power Supply TypeSingle
Maximum Power Dissipation (mW)0.625(Typ)
Integral Nonlinearity Error±2.5LSB
Full Scale Error±15LSB
Digital Supply SupportNo
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Pin Count8
Standard Package NameMSOP
Supplier PackageMSOP
MountingSurface Mount
Package Height0.86
Package Length3
Package Width3
PCB changed8
Lead ShapeGull-wing
FEATURES
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LTC1669
10-Bit Rail-to-Rail
Micropower DAC with
I
2
C Interface
DESCRIPTION
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.
L,
LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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Micropower 10-Bit DAC in SOT-23
Low Operating Current: 60μA
Ultralow Power Shutdown Mode: 12μA
2-Wire Serial Interface Compatible
with I
2
C™
Selectable Internal Reference or Ratiometric to
V
CC
Maximum DNL Error: 0.75LSB
8 User Selectable Addresses (MSOP Package)
Single 2.7V to 5.5V Operation
Buffered True Rail-to-Rail Voltage Output
Power-On Reset
1.5V V
IL
and 2.1V V
IH
for SDA and SCL
Small 5-Lead TSOT-23 and 8-Lead MSOP Packages
APPLICATIONS
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Digital Calibration
Offset/Gain Adjustment
Industrial Process Control
Automatic Test Equipment
Arbitrary Function Generators
Battery-Powered Data Conversion Products
BLOCK DIAGRAM
4 (5)
V
CC
1.25V
BANDGAP
REFERENCE
Differential Nonlinearity (DNL)
1.0
0.8
V
REF
= V
CC
= 5V
T
A
= 25°C
REFERENCE
SELECT
ERROR (LSB)
10-BIT BUFFERED V
OUT
DAC
MSOP
PACKAGE
ONLY
(6) AD0
(2) AD1
(3) AD2
2-WIRE INTERFACE
SDA
1 (1)
SCL
5 (4)
GND
2 (7)
1669 BD
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
28
156 384 512 640 768 896 1024
CODE
1669 G02
10-BIT
DAC LATCH
V
OUT
3 (8)
COMMAND
LATCH
INPUT
LATCH
NOTE: PIN NUMBERS IN PARENTHESES REFER TO THE MSOP PACKAGE
1669fa
1

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