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Linear Technology Electronic Components Datasheet

LTC2664 Datasheet

SoftSpan DACs

No Preview Available !

Features
nn Precision Reference 10ppm/°C Max
nn Independently Programmable Output Ranges:
0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V
nn Full 16-Bit/12-Bit Resolution at All Ranges
nn Maximum INL Error: ±4LSB at 16 Bits
nn A/B Toggle via Software or Dedicated Pin
nn Analog Multiplexer with Auxiliary Inputs
nn Guaranteed Monotonic Over Temperature
nn Internal or External Reference
nn Outputs Drive ±10mA Guaranteed
nn 1.8V to 5V SPI Serial interface
nn 32-Lead (5mm × 5mm) QFN Package
Applications
nn Optical Networking
nn Instrumentation
nn Data Acquisition
nn Automatic Test Equipment
nn Process Control and Industrial Automation
LTC2664
Quad 16-Bit/12-Bit ±10V
VOUT SoftSpan DACs with
10ppm/°C Max Reference
Description
The LTC®2664 is a family of four-channel, 16-/12-bit ±10V
digital-to-analog converters with integrated precision
references. They are guaranteed monotonic and have
built-in rail-to-rail output buffers. These SoftSpan™ DACs
offer five output ranges up to ±10V. The range of each
channel is independently programmable, or the part can
be hardware-configured for operation in a fixed range.
The integrated 2.5V reference is buffered separately to each
channel; an external reference can be used for additional
range options. The LTC2664 also includes A/B toggle
capability via a dedicated pin or software toggle command.
The SPI/Microwire-compatible 3-wire serial interface
operates on logic levels as low as 1.71V at clock rates
up to 50MHz.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents, including 6891433, 5859606, 5936245,
7671770.
Block Diagram
REFCOMP 26
OVRTMP 30
GND
11, 29
REFLO
10, 27
MUXIN0 2
VOUT0 3
VREF
DAC 0
INTERNAL REFERENCE
MUX
MUX
VREF
DAC 3
25 REF
28 VCC
24 CLR
7 V+
8 V
23 MUXIN3
22 VOUT3
VREF
VOUT1 4
MUXIN1 5
CS/LD 13
SCK 14
SDI 16
SDO 15
MUXOUT 9
DAC 1
VREF
MUX
MUX
DAC 2
21 VOUT2
20 MUXIN2
CONTROL LOGIC
DECODE
12 LDAC
17 TGP
31 MSP0
32-BIT SHIFT REGISTER
POWER-ON RESET
MONITOR MUX TOGGLE SELECT REGISTER
32 MSP1
1 MSP2
18 IOVCC
2664 BD
Integral Nonlinearity (LTC2664-16)
4
±10V RANGE
3
2
1
0
–1
–2
–3
–4
0
16384
32768
CODE
49152 65535
2664 TA01b
For more information www.linear.com/LTC2664
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Linear Technology Electronic Components Datasheet

LTC2664 Datasheet

SoftSpan DACs

No Preview Available !

LTC2664
Absolute Maximum Ratings
(Notes 1, 2)
Analog Supply Voltage (VCC)........................ –0.3V to 6V
Digital I/O Voltage (IOVCC)............................ –0.3V to 6V
REFLO........................................................ –0.3V to 0.3V
V+............................................................ –0.3V to 16.5V
V.............................................................–16.5V to 0.3V
CS/LD, SCK, SDI, LDAC, CLR, TGP............... –0.3V to 6V
MSP0, MSP1, MSP2.........–0.3V to Min (VCC + 0.3V, 6V)
VOUT0 to VOUT3, MUXIN0 to MUXIN3,
MUXOUT................ V– 0.3V to V+ + 0.3V (Max ±16.5V)
REF, REFCOMP.................–0.3V to Min (VCC + 0.3V, 6V)
SDO.............................. –0.3V to Min (IOVCC + 0.3V, 6V)
OVRTMP........................................................ –0.3V to 6V
Operating Temperature Range
LTC2664C................................................. 0°C to 70°C
LTC2664I..............................................–40°C to 85°C
LTC2664H........................................... –40°C to 125°C
Maximum Junction Temperature........................... 150°C
Storage Temperature Range................... –65°C to 150°C
Pin Configuration
TOP VIEW
32 31 30 29 28 27 26 25
MSP2 1
24 CLR
MUXIN0 2
23 MUXIN3
VOUT0 3
VOUT1 4
MUXIN1 5
22 VOUT3
33
21 VOUT2
20 MUXIN2
DNC 6
V+ 7
V8
19 DNC
18 IOVCC
17 TGP
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
TJMAX = 150°C, θJA = 44°C/W
EXPOSED PAD IS V, MUST BE SOLDERED TO PCB
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For more information www.linear.com/LTC2664


Part Number LTC2664
Description SoftSpan DACs
Maker Linear Technology
PDF Download

LTC2664 Datasheet PDF






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