bit, 2.7V to 5.5V rail-to-rail voltage output DACs in a 16-lead
SSOP package. They have built-in high performance output
buffers and are guaranteed monotonic.
These parts establish new board-density benchmarks for
16- and 14-bit DACs and advance performance standards
for output drive and load regulation in single-supply, volt-
age-output DACs.
The parts use a 2-wire, I
2
C compatible serial interface. The
LTC2609/LTC2619/LTC2629 operate in both the standard
mode (clock rate of 100kHz) and the fast mode (clock
rate of 400kHz).
The LTC2609/LTC2619/LTC2629 incorporate a power-on
reset circuit. During power-up, the voltage outputs rise less
than 10mV above zero-scale; after power-up, they stay at
zero-scale until a valid write and update take place. The
power-on reset circuit resets the LTC2609-1/LTC2619-1/
LTC2629-1 to mid-scale. The voltage outputs stay at mid-
scale until a valid write and update take place.
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. Patent pending.
n
n
n
n
n
n
n
n
n
n
n
n
Smallest Pin-Compatible Quad DACs:
LTC2609: 16 Bits
LTC2619: 14 Bits
LTC2629: 12 Bits
Guaranteed Monotonic Over Temperature
Separate Reference Inputs
27 Selectable Addresses
400kHz I
2
C™ Interface
Wide 2.7V to 5.5V Supply Range
Low Power Operation: 250µA per DAC at 3V
Individual Channel Power Down to 1µA (Max)
High Rail-to-Rail Output Drive (±15mA, Min)
Ultralow Crosstalk Between DACs (5µV)
LTC2609/LTC2619/LTC2629: Power-On Reset to
Zero-Scale
LTC2609-1/LTC2619-1/LTC2629-1: Power-On Reset
to Mid-Scale
Tiny 16-Lead Narrow SSOP Package
applications
n
n
n
Mobile Communications
Process Control and Industrial Automation
Automatic Test Equipment and Instrumentation
Block Diagram
REFA
3
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
V
OUTA
4
V
OUTB
5
REFB
6
CONTROL
LOGIC
DAC B
DAC A
DAC D
REFLO
2
GND
1
V
CC
16
REFD
15
V
OUTD
14
1.0
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
V
OUTC
DAC C
13
REFC
12
DNL (LSB)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
32-BIT SHIFT REGISTER
SCL
8
SDA
9
I
2
C
INTERFACE
ADDRESS
DECODE
LOGIC
CA0
11
CA1
10
CA2
7
2609 BD
Differential Nonlinearity
(LTC2609)
V
CC
= 5V
V
REF
= 4.096V
–0.6
–0.8
–1.0
0
16384
32768
CODE
49152
65535
2609 G02
26091929fb
LTC2609/LTC2619/LTC2629
aBsolute maximum ratings
(Note 1)
TOP VIEW
GND
REFLO
REFA
V
OUTA
V
OUTB
REFB
CA2
SCL
1
2
3
4
5
6
7
8
16 V
CC
15 REFD
14 V
OUTD
13 V
OUTC
12 REFC
11 CA0
10 CA1
9
SDA
Any Pin to GND ............................................ –0.3V to 6V
Any Pin to V
CC
............................................ –6V to 0.3V
Maximum Junction Temperature........................... 125°C
Storage Temperature Range.................. –65°C to 125°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
Operating Temperature Range:
LTC2609C/LTC2619C/LTC2629C
LTC2609C-1/LTC2619C-1/LTC2629C-1 .... 0°C to 70°C
LTC2609I/LTC2619I/LTC2629I
LTC2609I-1/LTC2619I-1/LTC2629I-1....–40°C to 85°C
GN PACKAGE
16-LEAD PLASTIC SSOP
T
JMAX
= 135°C,
θ
JA
= 150°C/W
orDer inFormation
LEAD FREE FINISH
LTC2609CGN#PBF
LTC2609CGN-1#PBF
LTC2609IGN#PBF
LTC2609IGN-1#PBF
LTC2619CGN#PBF
LTC2619CGN-1#PBF
LTC2619IGN#PBF
LTC2619IGN-1#PBF
LTC2629CGN#PBF
LTC2629CGN-1#PBF
LTC2629IGN#PBF
LTC2629IGN-1#PBF
TAPE AND REEL
LTC2609CGN#TRPBF
LTC2609CGN-1#TRPBF
LTC2609IGN#TRPBF
LTC2609IGN-1#TRPBF
LTC2619CGN#TRPBF
LTC2619CGN-1#TRPBF
LTC2619IGN#TRPBF
LTC2619IGN-1#TRPBF
LTC2629CGN#TRPBF
LTC2629CGN-1#TRPBF
LTC2629IGN#TRPBF
LTC2629IGN-1#TRPBF
PART MARKING*
2609
26091
2609I
2619I1
2619
26191
2619I
2619I1
2629
26291
2629I
2629I1
PACKAGE DESCRIPTION
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–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/
26091929fb
LTC2609/LTC2619/LTC2629
electrical characteristics
SYMBOL PARAMETER
DC Performance
Resolution
Monotonicity
DNL
Differential Nonlinearity
INL
Integral Nonlinearity
Load Regulation
CONDITIONS
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
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