LTC2600_15 Datasheet, PDF (1/20 Pages) Linear Technology – Octal 16-/14-/12-Bit Rail-to-Rail DACs in 16-Lead SSOP

LTC2600/LTC2610/LTC2620
Octal 16-/14-/12-Bit
Rail-to-Rail DACs in 16-Lead SSOP
FEATURES
n _{Smallest Pin-Compatible Octal DACs:}
LTC2600: 16 Bits
LTC2610: 14 Bits
LTC2620: 12 Bits
n _{Guaranteed 16-Bit Monotonic Over Temperature}
n _{Wide 2.5V to 5.5V Supply Range}
n _{Low Power Operation: 250μA per DAC at 3V}
n _{Individual Channel Power-Down to 1μA, Max}
n _{Ultralow Crosstalk Between DACs (<10μV)}
n _{High Rail-to-Rail Output Drive (±15mA, Min)}
n _{Double-Buffered Digital Inputs}
n _{Pin-Compatible 10-/8-Bit Versions (LTC1660/LTC1665)}
n _{Tiny 16-Lead Narrow SSOP}
and 20-Lead 4mm × 5mm QFN Packages
APPLICATIONS
n _{Mobile Communications}
n _{Process Control and Industrial Automation}
n _{Instrumentation}
n _{Automatic Test Equipment}
DESCRIPTION
The LTC^®2600/LTC2610/LTC2620 are octal 16-, 14- and
12-bit, 2.5V-to-5.5V rail-to-rail voltage-output DACs in
16-lead narrow SSOP and 20-lead 4mm × 5mm QFN
packages. 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, crosstalk and load regulation in single-supply,
voltage-output multiples.
The parts use a simple SPI/MICROWIRE compatible 3-wire
serial interface which can be operated at clock rates up
to 50MHz. Daisychain capability and a hardware CLR
function are included.
The LTC2600/LTC2610/LTC2620 incorporate a power-on
reset circuit. During power-up, the voltage outputs rise less
than 10mV above zero-scale; and after power-up, they stay
at zero-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.
BLOCK DIAGRAM
(20) GND 1
(1) V_OUTA 2
DAC A
DAC H
16 V_CC (17)
15 V_OUTH (16)
(2) VOUTB 3
DAC B
DAC G
14 VOUTG (15)
(3) VOUTC 4
DAC C
DAC F
13 VOUTF (14)
(4) _{VOUTD 5}
(5) REF 6
(7) CS/LD 7
(8) SCK 8
DAC D
DAC E
12 VOUTE ⁽¹³⁾
CONTROL
LOGIC
DECODE
POWER-ON
RESET
11 CLR (11)
10 SDO (10)
32-BIT SHIFT REGISTER
NOTE: NUMBERS IN PARENTHESIS REFER TO THE UFD PACKAGE
9 SDI (9)
2600 BD
Differential Nonlinearity (LTC2600)
1.0
V_CC = 5V
0.8 V_REF = 4.096V
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384
32768
CODE
49152 65535
2600 G21
2600fe
1