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LTC2666CUH-12#PBF

Description
IC DAC 12BIT 32QFN
Categorysemiconductor    Analog mixed-signal IC   
File Size1MB,28 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC2666CUH-12#PBF Overview

IC DAC 12BIT 32QFN

LTC2666CUH-12#PBF Parametric

Parameter NameAttribute value
Number of digits12
Number of digital-to-analog converters8
Setup time15.5µs (standard)
Output typeVoltage - Buffered
Differential outputnone
Data interfaceSPI
Reference typeoutside, inside
Voltage - Power, Analog±4.5 V ~ 15.75 V
Voltage - Power, Digital5V
INL/DNL(LSB)±0.2,±0.05
Architecture-
Operating temperature0°C ~ 70°C
Package/casing32-WFQFN Exposed Pad
Supplier device packaging32-QFN(5x5)
Installation typesurface mount
Features
n
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LTC2666
Octal 16-Bit/12-Bit ±10V
V
OUT
SoftSpan DACs with
10ppm/°C Max Reference
Description
The
LTC
®
2666
is a family of 8-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 LTC2666 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.
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n
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Precision Reference 10ppm/°C Max
Independently Programmable Output Ranges:
0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V
Full 16-Bit/12-Bit Resolution at All Ranges
Maximum INL Error: ±4LSB at 16 Bits
A/B Toggle via Software or Dedicated Pin
8:1 Analog Multiplexer
Guaranteed Monotonic Over Temperature
Internal or External Reference
Outputs Drive ±10mA Guaranteed
1.8V to 5V SPI Serial interface
32-Lead (5mm × 5mm) QFN Package
applications
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n
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Optical Networking
Instrumentation
Data Acquisition
Automatic Test Equipment
Process Control and Industrial Automation
Block Diagram
REFCOMP 26
OVRTMP
30
RGSTR A
GND
11, 29
REFLO
10, 27
V
OUT0
2
DAC 0
SPAN
SPAN
V
REF
REGISTER
RGSTR A
V
REF
REGISTER
INTERNAL REFERENCE
25 REF
28 V
CC
24
CLR
7
8
DAC 7
SPAN
SPAN
V
+
V
Integral Nonlinearity (LTC2666-16)
4
3
2
INL (LSB)
1
0
–1
–2
±10V RANGE
MUX
RGSTR B
RGSTR B
MUX
23 V
OUT7
• • •
• • •
V
OUT1
3
22 V
OUT6
• • •
• • •
• • •
• • •
• • •
• • •
RGSTR A
RGSTR A
V
OUT2
4
V
REF
REGISTER
V
REF
REGISTER
21 V
OUT5
–3
–4
0
16384
32768
CODE
49152
65535
2666 TA01b
MUX
RGSTR B
RGSTR B
MUX
V
OUT3
5
DAC 3
SPAN
SPAN
DAC 4
SPAN
SPAN
20 V
OUT4
12
LDAC
17 TGP
31 MSP0
CS/LD
13
SCK 14
SDI 16
SDO 15
MUXOUT 9
CONTROL LOGIC
DECODE
POWER-ON RESET
32-BIT SHIFT REGISTER
MONITOR MUX
32 MSP1
1
MSP2
TOGGLE SELECT REGISTER
18 IOV
CC
2666 TA01a
2666fa
For more information
www.linear.com/LTC2666
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