LTC2655 반도체 회로 부품 판매점
16-/12-Bit Rail-to-Rail DACs
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 Linear Technology |
DataSheet.in
FEATURES
n Integrated Reference 10ppm/°C Max
n Maximum INL Error: ±4LSB at 16 Bits
n Guaranteed Monotonic Over Temperature
n Selectable Internal or External Reference
n 2.7V to 5.5V Supply Range (LTC2655-L)
n Integrated Reference Buffers
n Ultralow Crosstalk Between DACs (<1nV•s)
n Power-On-Reset to Zero-Scale/Mid-Scale
n Asynchronous DAC Update Pin
n Tiny 20-Lead 4mm × 4mm QFN and
16-Lead Narrow SSOP packages
APPLICATIONS
n Mobile Communications
n Process Control and Industrial Automation
n Instrumentation
n Automatic Test Equipment
n Automotive
BLOCK DIAGRAM
REFCOMP
GND
REFLO
VOUTA
DAC A
INTERNAL REFERENCE
VOUTB
CA0
CA1
CA2
SCL
LDAC
DAC B
32-BIT SHIFT REGISTER
2-WIRE INTERFACE
LTC2655
Quad I2C 16-/12-Bit
Rail-to-Rail DACs with
10ppm/°C Max Reference
DESCRIPTION
The LTC®2655 is a family of Quad I2C 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 LTC2655-L
has a full-scale output of 2.5V with the integrated refer-
ence and operates from a single 2.7V to 5.5V supply.
The LTC2655-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 the 2-wire I2C compatible serial interface.
The LTC2655 operates in both the standard mode (maxi-
mum clock rate of 100kHz) and the fast mode (maximum
clock rate of 400kHz). The LTC2655 incorporates a
power-on reset circuit that is controlled by the PORSEL
pin. If PORSEL is tied to GND the DACs power-on reset to
zero-scale. If PORSEL is tied to VCC, the DACs power-on
reset to mid-scale.
L, LT, LTC, LTM, Linear Technology and the Linear logo 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 7671770.
REFIN/OUT
VCC
DAC D
VOUTD
DAC C
VOUTC
POWER-ON PORSEL
RESET
SDA
2655 BD
4
VCC = 5V
3
INL Curve
2
1
0
–1
–2
–3
–4
128
16384
32768
CODE
49152 65535
2655 TA01b
2655f
1
DataSheet.in
LTC2655
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
Supply Voltage (VCC) ................................... –0.3V to 6V
SCL, SDA, LDAC, REFLO.............................. –0.3V to 6V
VOUTA to VOUTD ................–0.3V to Min (VCC + 0.3V, 6V)
REFIN/OUT, REFCOMP.....–0.3V to Min (VCC + 0.3V, 6V)
PORSEL, CA0, CA1, CA2 ..–0.3V to Min (VCC + 0.3V, 6V)
Operating Temperature Range
LTC2655C ................................................ 0°C to 70°C
LTC2655I .............................................–40°C to 85°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range ......................–65 to 150°C
Lead Temperature, GN Only (Soldering, 10 sec).... 300°C
PIN CONFIGURATION
TOP VIEW
REFLO 1
VOUTA 2
REFCOMP 3
VOUTB
REFIN/OUT
LDAC
4
5
6
CA2 7
SCL 8
16 GND
15 VCC
14 VOUTD
13 VOUTC
12 PORSEL
11 CA0
10 CA1
9 SDA
GN PACKAGE
16-LEAD PLASTIC SSOP
TJMAX = 150°C, θJA = 110°C/W
TOP VIEW
20 19 18 17 16
VOUTA 1
REFCOMP 2
VOUTB 3
REFIN/OUT 4
LDAC 5
15 DNC
14 VOUTD
21
GND
13 VOUTC
12 PORSEL
11 CA0
6 7 8 9 10
UF PACKAGE
20-LEAD (4mm s 4mm) PLASTIC QFN
TJMAX = 150°C, θJA = 37°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
2655f
2
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PDF 파일 내의 페이지 : 총 28 페이지
제조업체: Linear Technology
( linear )
LTC2655 data
데이터시트 다운로드 :
[ LTC2655.PDF ]
[ LTC2655 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
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