LTC1664 Datasheet, PDF (1/16 Pages) Linear Technology – Micropower Quad 10-Bit DAC

FEATURES
s _{Tiny: 4 DACs in the Board Space of an SO-8}
s _{Micropower: 59µA per DAC Plus}
1µA Sleep Mode for Extended Battery Life
s _{Wide 2.7V to 5.5V Supply Range}
s _{Rail-to-Rail Voltage Outputs Drive 1000pF}
s _{Reference Range Includes Supply for Ratiometric}
0V-to-V_CC Output
s _{Reference Input Has Constant Impedance over All}
Codes—Eliminates External Reference Buffer
s _{Individually Addressable DACs}
s _{Differential Nonlinearity: ≤ ±0.75LSB Max}
s _{Pin-Compatible Octal Version Available (LTC1660)}
U
APPLICATIO S
s _{Mobile Communications}
s _{Remote Industrial Devices}
s _{Automatic Calibration for Manufacturing}
s _{Portable Battery-Powered Instruments}
s _{Trim/Adjust Applications}
Final Electrical Specifications
LTC1664
Micropower Quad
10-Bit DAC
January 2000
DESCRIPTIO
The LTC^®1664 integrates four accurate, serially addres-
sable 10-bit digital-to-analog converters (DACs) in a tiny
16-pin Narrow SSOP package. Each buffered DAC draws
just 59µA total supply current, yet is capable of supplying
DC output currents in excess of 5mA and reliably driving
capacitive loads of up to 1000pF. Sleep mode further
reduces total supply current to 1µA.
Linear Technology’s proprietary, inherently monotonic
voltage interpolation architecture provides excellent lin-
earity while allowing for an exceptionally small external
form factor.
Ultralow supply current, power-saving Sleep mode and
extremely compact size make the LTC1664 ideal for
battery-powered applications, while its ease of use, high
performance and wide supply range make it an excellent
choice as a general purpose converter.
, LTC and LT are registered trademarks of Linear Technology Corporation.
BLOCK DIAGRA
GND 1
V_{OUT A} 2
V_{OUT B} 3
REF 6
CS/LD 7
SCK 8
10-BIT
DAC A
10-BIT
DAC B
10-BIT
DAC D
10-BIT
DAC C
CONTROL
LOGIC
ADDRESS
DECODER
SHIFT REGISTER
16 V_CC
5 V_{OUT D}
4 VOUT C
11 CLR
10 D_OUT
9 D_IN
1664 BD
LTC1664 Differential Nonlinearity (DNL)
1
0.8
V_CC = 5V
V_REF = 4.096V
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1
0
256
512
CODE
768
1023
1664 G08
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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