LTC1658CS8#PBF Linear Technology, LTC1658CS8#PBF Datasheet - Page 8
LTC1658CS8#PBF
Manufacturer Part Number
LTC1658CS8#PBF
Description
IC D/A CONV 14BIT R-R 8-SOIC
Manufacturer
Linear Technology
Datasheet
1.LTC1658CS8PBF.pdf
(12 pages)
Specifications of LTC1658CS8#PBF
Settling Time
12µs
Number Of Bits
14
Data Interface
Serial
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
3mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
1
Resolution
14b
Interface Type
Serial (3-Wire, SPI, Microwire)
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Output Type
Voltage
Integral Nonlinearity Error
±8LSB
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
APPLICATIONS
LTC1658
Rail-to-Rail Output Considerations
In any rail-to-rail DAC, the output swing is limited to
voltages within the supply range.
If the DAC offset is negative, the output for the lowest
codes limits at 0V as shown in Figure 1b.
Similarly, limiting can occur near full scale when the REF
pin is tied to V
8
NEGATIVE
OFFSET
VOLTAGE
OUTPUT
Figure 1. Effects of Rail-to-Rail Operation On a DAC Transfer Curve. (a) Overall Transfer Function (b) Effect of Negative
Offset for Codes Near Zero Scale (c) Effect of Positive Full-Scale Error for Input Codes Near Full Scale When V
0V
CC
. If V
U
REF
= V
INPUT CODE
INFORMATION
U
CC
(b)
and the DAC full-scale error
W
VOLTAGE
OUTPUT
0
U
INPUT CODE
V
REF
8192
(a)
= V
(FSE) is positive, the output for the highest codes limits at
V
if V
Offset and linearity are defined and tested over the region
of the DAC transfer function where no output limiting can
occur.
CC
CC
REF
as shown in Figure 1c. No full-scale limiting can occur
is less than V
16383
CC
– FSE.
V
REF
INPUT CODE
= V
(c)
CC
REF
= V
CC
OUTPUT
VOLTAGE
POSITIVE
FSE
1658 F01