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LTC1665IGN#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LTC1665/LTC1660
1
166560fa
BLOCK DIAGRAM
FEATURES DESCRIPTION
Micropower Octal
8-Bit and 10-Bit DACs
The 8-bit LTC
®
1665 and 10-bit LTC1660 integrate eight
accurate, serially addressable digital-to-analog convert-
ers (DACs) in tiny 16-pin narrow SSOP packages. Each
buffered DAC draws just 56μA total supply current, yet
is capable of supplying DC output currents in excess
of 5mA and reliably driving capacitive loads to 1000pF.
Sleep mode further reduces total supply current to 1μA.
Linear Technology’s proprietary, inherently monotonic volt-
age interpolation architecture provides excellent linearity
while allowing for an exceptionally small external form factor.
Ultralow supply current, power-saving Sleep mode and
extremely compact size make the LTC1665 and LTC1660
ideal for battery-powered applications, while their ease
of use, high performance and wide supply range make
them excellent choices as general purpose converters.
LTC1665 Differential Nonlinearity (DNL)
LTC1660 Differential Nonlinearity (DNL)
APPLICATIONS
n
Tiny: 8 DACs in the Board Space of an SO-8
n
Micropower: 56μA per DAC Plus
1μA Sleep Mode for Extended Battery Life
n
Pin Compatible 8-Bit LTC1665 and 10-Bit LTC1660
n
Wide 2.7V to 5.5V Supply Range
n
Rail-to-Rail Voltage Outputs Drive 1000pF
n
Reference Range Includes Supply for Ratiometric
0V-to-V
CC
Output
n
Reference Input Impedance is Constant—
Eliminates External Buffer
n
Mobile Communications
n
Remote Industrial Devices
n
Automatic Calibration for Manufacturing
n
Portable Battery-Powered Instruments
n
Trim/Adjust Applications
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.
2
15
1GND
V
OUT A
V
OUT B
V
OUT C
V
OUT D
REF
CS/LD
SCK
V
CC
V
OUT H
V
OUT G
V
OUT F
V
OUT E
CLR
D
OUT
D
IN
166560 BD
16
DAC A DAC H
3 14
DAC B DAC G
4 13
DAC C DAC F
5
7
6
8
10
11
9
12
DAC D DAC E
ADDRESS
DECODER
CONTROL
LOGIC
SHIFT REGISTER
CODE
0 64 128 192 255
LSB
166560 G09
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
V
CC
= 5V
V
REF
= 4.096V
CODE
0 256 512 768 1023
LSB
166560 G13
1
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1
V
CC
= 5V
V
REF
= 4.096V
LTC1665/LTC1660
2
166560fa
1
2
3
4
5
6
7
8
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
N PACKAGE
16-LEAD PDIP
16
15
14
13
12
11
10
9
GND
V
OUT A
V
OUT B
V
OUT C
V
OUT D
REF
CS/LD
SCK
V
CC
V
OUT H
V
OUT G
V
OUT F
V
OUT E
CLR
D
OUT
D
IN
T
JMAX
= 125°C, θ
JA
= 150°C/W (GN)
T
JMAX
= 125°C, θ
JA
= 100°C/W (N)
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ............................................... –0.2V to 7.5V
Logic Inputs to GND ................................. –0.2V to 7.5V
V
OUT A
, V
OUT B
, V
OUT H
,
REF to GND .................................–0.2V to (V
CC
+ 0.2V)
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range
LTC1665C/LTC1660C .............................. 0°C to 70°C
LTC1665I/LTC1660I ............................ –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
(Note 1)
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1665CGN#PBF LTC1665CGN#PBF 1665 16-Lead Plastic SSOP 0°C to 70°C
LTC1665IGN#PBF LTC1665IGN#PBF 1665I 16-Lead Plastic SSOP –40°C to 85°C
LTC1660CGN#PBF LTC1660CGN#PBF 1660 16-Lead Plastic SSOP 0°C to 70°C
LTC1660IGN#PBF LTC1660IGN#PBF 1660I 16-Lead Plastic SSOP –40°C to 85°C
LTC1665CN#PBF LTC1665CN#PBF LTC1665CN 16-Lead Plastic PDIP 0°C to 70°C
LTC1665IN#PBF LTC1665IN#PBF LTC1665IN 16-Lead Plastic PDIP –40°C to 85°C
LTC1660CN#PBF LTC1660CN#PBF LTC1660CN 16-Lead Plastic PDIP 0°C to 70°C
LTC1660IN#PBF LTC1660IN#PBF LTC1660IN 16-Lead Plastic PDIP –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.
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/
LTC1665/LTC1660
3
166560fa
ELECTRICAL CHARACTERISTICS
The l denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
REF
≤ V
CC
, V
OUT
unloaded, unless otherwise noted.
The
l denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
CC
= 2.7V to 5.5V, V
REF
≤ V
CC
, V
OUT
unloaded, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LTC1665 LTC1660
UNITSMIN TYP MAX MIN TYP MAX
Accuracy
Resolution
l
8 10 Bits
Monotonicity V
REF
≤ V
CC
– 0.1V (Note 2)
l
8 10 Bits
DNL Differential Nonlinearity V
REF
≤ V
CC
– 0.1V (Note 2)
l
±0.1 ±0.5 ±0.2 ±0.75 LSB
INL Integral Nonlinearity V
REF
≤ V
CC
– 0.1V (Note 2)
l
±0.2 ±1.0 ±0.6 ±2.5 LSB
V
OS
Offset Error (Note 7)
l
±10 ±30 ±10 ±30 mV
V
OS
Temperature Coefficient
l
±15 ±15 μV/°C
FSE Full-Scale Error V
CC
= 5V, V
REF
= 4.096V
l
±1 ±4 ±3 ±15 LSB
Full-Scale Error Temperature Coefficient
l
±30 ±30 μV/°C
PSR Power Supply Rejection V
REF
= 2.5V 0.045 0.18 LSB/V
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Input
Input Voltage Range
l
0V
CC
V
Resistance Not in Sleep Mode
l
35 65 kΩ
Capacitance (Note 6) 15 pF
I
REF
Reference Current Sleep Mode
l
0.001 1 μA
Power Supply
V
CC
Positive Supply Voltage For Specified Performance
l
2.7 5.5 V
I
CC
Supply Current V
CC
= 5V (Note 3)
V
CC
= 3V (Note 3)
Sleep Mode (Note 3)
l
l
l
450
340
1
730
530
3
μA
μA
μA
DC Performance
Short-Circuit Current Low V
OUT
= 0V, V
CC
= 5.5V, V
REF
= 5.1V, Code = Full
Scale
l
10 30 100 mA
Short-Circuit Current High V
OUT
= V
CC
= 5.5V, V
REF
= 5.1V, Code = 0
l
10 27 120 mA
AC Performance
Voltage Output Slew Rate Rising (Notes 4, 5)
Falling (Notes 4, 5)
0.60
0.25
V/μs
V/μs
Voltage Output Settling Time To ±0.5LSB (Notes 4, 5) 30 μs
Capacitive Load Driving 1000 pF
Digital I/O
V
IH
Digital Input High Voltage V
CC
= 2.7V to 5.5V
V
CC
= 2.7V to 3.6V
l
l
2.4
2.0
V
V
V
IL
Digital Input Low Voltage V
CC
= 4.5V to 5.5V
V
CC
= 2.7V to 5.5V
l
l
0.8
0.6
V
V
V
OH
Digital Output High Voltage I
OUT
= –1mA, D
OUT
Only
l
V
CC
– 1 V
V
OL
Digital Output Low Voltage I
OUT
= 1mA, D
OUT
Only
l
0.4 V
I
LK
Digital Input Leakage V
IN
= GND to V
CC
l
±10 μA
C
IN
Digital Input Capacitance (Note 6)
l
10 pF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LTC1665IGN#TRPBF

Mfr. #:
Buy LTC1665IGN#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC uP Octal 8-B DACs
Lifecycle:
New from this manufacturer.
Delivery:
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