LTC1650
Low Glitch 16-Bit
Voltage Output DAC
FEATURES
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DESCRIPTIO
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16-Bit Monotonic Over Temperature
Low Glitch Impulse: 2nV-s
Low Noise: 30nV/鈭欻z
Buffered Rail-to-Rail Voltage Output
Low Power: 50mW from
鹵5V
Supplies
Unipolar or Bipolar Output (0V to V
REF
or
鹵V
REF
)
4-Quadrant Multiplying Capability
Asynchronous Clear to User-Defined Voltage
Power-On Reset
Three-Wire SPI and MICROWIRE
TM
Compatible
Serial Interface
Schmitt Trigger On CLK Input Allows Direct
Optocoupler Interface
16-Pin Narrow SO Package
The LTC
廬
1650 is a deglitched rail-to-rail voltage output
16-bit digital-to-analog converter (DAC) available in a
16-pin narrow SO package. It has 16-bit monotonicity
over temperature and includes a rail-to-rail output buffer
amplifier and an easy to use three-wire cascadable serial
interface. The LTC1650 operates with dual
鹵5V
supplies.
With REFLO = 0V and REFHI = V
REF
, the output will swing
from 0V to V
REF
in unipolar mode or
鹵V
REF
in bipolar
mode.
The LTC1650 has excellent accuracy over its full operating
temperature range along with very low power dissipation
of 50mW with dual
鹵5V
supplies. This, along with the
small outline package, makes it the most flexible high
resolution digital-to-analog converter available today.
The LTC1650 has a fast settling time of 4碌s to 16 bits and
a low midscale glitch of under 2nV-s. This makes the
LTC1650 ideal for waveform generation or other applica-
tions where output dynamic performance is important.
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
APPLICATIO S
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Industrial Process Control
Precision Industrial Equipment
Waveform Generation
Automatic Test Equipment
High Resolution Offset and Gain Adjustment
TYPICAL APPLICATIO
5V
3
CS/LD
CLK
D
IN
8
DV
DD
5V
4.096V
11
REFHI
RSTOUT
10
15
AV
DD
7
5
POWER-ON RESET
SUPPLY SENSE
9
2
CLR
V
RST
DNL ERROR (LSB)
16-BIT SHIFT REGISTER
16-BIT DAC REGISTER
16-BIT DAC
+
1
V
OUT
鈥?/div>
D
OUT
6
16
4
12,13
14
鈥?5V
AV
SS
UNI/BIP
DGND
REFLO
1650 TA01
U
Differential Nonlinearity
vs Input Code
1.0
0.8
0.6
0.4
0.2
0
鈥?0.2
鈥?0.4
鈥?0.6
鈥?0.8
鈥?1.0
0
16384
32768
CODE
49152
65535
1650 TA02
U
U
1
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