LTC1655IS8#PBF Linear Technology, LTC1655IS8#PBF Datasheet - Page 13

• Manufacturer Part Number: LTC1655IS8#PBF
• Description: IC D/A CONV 16BIT R-R 8-SOIC
• Manufacturer: Linear Technology

Specifications of LTC1655IS8#PBF

• Settling Time: 20µs
• Number Of Bits: 16
• Data Interface: Serial
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 2.6mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Channels: 1
• Resolution: 16b
• Conversion Rate: 750KSPS
• Interface Type: Serial (3-Wire, SPI, QSPI, Microwire)
• Single Supply Voltage (typ): 5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Output Type: Voltage
• Integral Nonlinearity Error: ±20LSB
• Single Supply Voltage (min): 4.5V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL APPLICATIONS
This circuit shows a digitally programmable current source
from an external voltage source using an external op amp,
an LT1218 and an NPN transistor (2N3440). Any digital
word from 0 to 65535 is loaded into the LTC1655 and its
output correspondingly swings from 0V to 4.096V. This
voltage will be forced across the resistor R
P
1
2
3
U
CLK
D
CS/LD
IN
LTC1655
GND
Digitally Programmable Current Source
V
5V
CC
8
5
A
. If R
V
OUT
A
7
is
0.1 F
chosen to be 412 , the output current will range from
0mA at zero scale to 10mA at full scale. The minimum
voltage for V
Q1’s V
voltage source can be 5V.
3
2
–
+
LT1218
CESAT
7
4
S
voltage. With a load resistor of 50 , the
6
5V < V
FOR R
is determined by the load resistor R
S
L
< 100V
Q1
2N3440
R
412
1%
R
50
A
L
LTC1655/LTC1655L
I
1655/55L TA04
OUT
=
(D
(65536)(R
0mA TO 10mA
IN
)(4.096)
A
)
13
L
and