
1
LTC1650
Low Glitch 16-Bit
Voltage Output DAC
The LTC
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
±5V supplies.
With REFLO = 0V and REFHI = VREF, the output will swing
from 0V to VREF in unipolar mode or ±VREF in bipolar
mode.
The LTC1650 has excellent accuracy over its full operating
temperature range along with very low power dissipation
of 50mW with dual
±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
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.
–
+
16-BIT
DAC
16-BIT
DAC
REGISTER
16-BIT
SHIFT
REGISTER
POWER-ON RESET
SUPPLY SENSE
CLR
VRST
AVDD
5V
RSTOUT
VOUT
UNI/BIP
REFLO
DGND
1650 TA01
10
8
7
5
6
12,13
4.096V
5V
–5V
CS/LD
CLK
DIN
DOUT
REFHI
11
15
9
2
1
16
4
AVSS
14
DVDD
3
CODE
0
– 1.0
DNL
ERROR
(LSB)
– 0.8
– 0.4
– 0.2
0
1.0
0.4
16384
32768
1650 TA02
– 0.6
0.6
0.8
0.2
49152
65535
Differential Nonlinearity
vs Input Code
s
16-Bit Monotonic Over Temperature
s
Low Glitch Impulse: 2nV-s
s
Low Noise: 30nV/
√Hz
s
Buffered Rail-to-Rail Voltage Output
s
Low Power: 50mW from
±5V Supplies
s
Unipolar or Bipolar Output (0V to VREF or ±VREF)
s
4-Quadrant Multiplying Capability
s
Asynchronous Clear to User-Defined Voltage
s
Power-On Reset
s
Three-Wire SPI and MICROWIRE
TM Compatible
Serial Interface
s
Schmitt Trigger On CLK Input Allows Direct
Optocoupler Interface
s
16-Pin Narrow SO Package
s
Industrial Process Control
s
Precision Industrial Equipment
s
Waveform Generation
s
Automatic Test Equipment
s
High Resolution Offset and Gain Adjustment
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
FEATURES
DESCRIPTIO
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APPLICATIO S
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TYPICAL APPLICATIO
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