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LTC2657IFE-L12#PBF

Description
IC DAC 12BIT I2C 20-TSSOP
CategoryAnalog mixed-signal IC    converter   
File Size1MB,24 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC2657IFE-L12#PBF Overview

IC DAC 12BIT I2C 20-TSSOP

LTC2657IFE-L12#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
Parts packaging codeTSSOP
package instructionHTSSOP, TSSOP20,.25
Contacts20
Manufacturer packaging codeFE
Reach Compliance Codecompliant
ECCN codeEAR99
Maximum analog output voltage2.5 V
Minimum analog output voltage
Converter typeD/A CONVERTER
Enter bit codeBINARY
Input formatSERIAL
JESD-30 codeR-PDSO-G20
JESD-609 codee3
length6.5 mm
Maximum linear error (EL)0.0244%
Humidity sensitivity level1
Number of digits12
Number of functions1
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Encapsulate equivalent codeTSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1.2 mm
Nominal settling time (tstl)3.9 µs
Maximum slew rate4.25 mA
Nominal supply voltage3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width4.4 mm
Base Number Matches1
FEATURES
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n
LTC2657
Octal I
2
C 16-/12-Bit
Rail-to-Rail DACs with
10ppm/°C Max Reference
DESCRIPTION
The LTC
®
2657 is a family of octal I
2
C 16-/12-Bit Rail-to-
Rail DACs with Integrated 10ppm/°C Max Reference. The
DACs have built-in high performance, rail-to-rail, output
buffers and are guaranteed monotonic. The LTC2657-L has
a full-scale output of 2.5V with the integrated reference and
operates from a single 2.7V to 5.5V supply. The LTC2657-H
has a full-scale output of 4.096V with the integrated reference
and operates from a 4.5V to 5.5V supply. Each DAC can also
operate with an external reference, which sets the full-scale
output to 2 times the external reference voltage.
The parts use a 2-wire I
2
C compatible serial interface. The
LTC2657 operates in both the standard mode (maximum
clock rate of 100kHz) and the fast mode (maximum clock
rate of 400kHz). The LTC2657 incorporates a power-on reset
circuit that is controlled by the PORSEL pin. If PORSEL is tied
to GND the DACs reset to zero-scale at power-up. If PORSEL
is tied to V
CC
, the DACs reset to mid-scale at power-up.
L,
LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents including
5396245, 6891433 and patent pending.
Integrated Reference 10ppm/°C Max
Maximum INL Error: ±4LSB
Guaranteed Monotonic Over Temperature
Selectable Internal or External Reference
2.7V to 5.5V Supply Range (LTC2657-L)
Integrated Reference Buffers
Ultralow Crosstalk between DACs(0.8nV•s)
Power-On-Reset to Zero-Scale/Mid-Scale
400kHz I
2
C Interface
Tiny 20-Lead 4mm
×
5mm QFN and 20-Lead
Thermally enhanced TSSOP packages
APPLICATIONS
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Mobile Communications
Process Control and Industrial Automation
Instrumentation
Automatic Test Equipment
Automotive
BLOCK DIAGRAM
REFCOMP
GND
REGISTER
REGISTER
REGISTER
REGISTER
REFLO
V
OUTA
DAC A
V
CC
REF
INTERNAL REFERENCE
REFIN/OUT
INL vs Code (LTC2657-16)
4
DAC H
V
OUTH
3
2
REGISTER
REGISTER
REGISTER
REGISTER
V
OUTB
DAC B
DAC G
V
OUTG
INL (LSB)
1
0
–1
REGISTER
REGISTER
REGISTER
REGISTER
V
OUTC
DAC C
DAC F
V
OUTF
–2
–3
DAC A
DAC B
DAC C
DAC D
16384
32768
CODE
49152
DAC E
DAC F
DAC G
DAC H
65535
2657 TA01
REGISTER
REGISTER
REGISTER
V
OUTD
CA0
CA1
CA2
LDAC
REGISTER
DAC D
DAC E
POWER-ON RESET
V
OUTE
PORSEL
–4
128
32-BIT SHIFT REGISTER
2-WIRE INTERFACE
SDA
SCL
2657 BD
2657f
1
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