LTC1655IN8 Linear Technology, LTC1655IN8 Datasheet

IC D/A CONV 16BIT R-R 8-DIP

LTC1655IN8

Manufacturer Part Number
LTC1655IN8
Description
IC D/A CONV 16BIT R-R 8-DIP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1655IN8

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
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1655IN8
Manufacturer:
LT
Quantity:
5 510
Part Number:
LTC1655IN8
Manufacturer:
NXP
Quantity:
5 510
FEATURES
APPLICATIO S
FU CTIO AL BLOCK DIAGRA
OTHER
DACS
TO
16-Bit Monotonicity Over Temperature
Deglitched Rail-to-Rail Voltage Output
SO-8 Package
I
Internal Reference: 2.048V (LTC1655)
Maximum DNL Error: 1LSB
Settling Time: 20 S to 1LSB
750kHz Max Update Rate
Power-On Reset to Zero Volts
3-Wire Cascadable Serial Interface
Low Cost
Pin Compatible Upgrade for LTC1451 12-Bit DAC
Family
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Cellular Telephones
P
CC(TYP)
U
2
1
3
4
Functional Block Diagram: 16-Bit Rail-to-Rail DAC
D
CLK
CS/LD
D
: 600 A
LTC1655L: 2.7V TO 5.5V
IN
OUT
LTC1655: 4.5V TO 5.5V
U
POWER-ON
LATCH
16-BIT
RESET
SHIFT
REG
AND
DAC
V
CC
8
U
1.25V (LTC1655L)
16
REF
16-BIT
DAC
LTC1655: 2.048V
LTC1655L: 1.25V
GND
6
REF
5
+
W
1655/55L TA01
V
OUT
7
DESCRIPTIO
MICROWIRE is a trademark of National Semiconductor Corporation.
The LTC
16-bit digital-to-analog converters in an SO-8 package.
They include an output buffer and a reference. The 3-wire
serial interface is compatible with SPI/QSPI and
MICROWIRE
trigger that allows direct optocoupler interface.
The LTC1655 has an onboard 2.048V reference that can be
overdriven to a higher voltage. The output swings from 0V
to 4.096V when using the internal reference. The typical
power dissipation is 3.0mW on a single 5V supply.
The LTC1655L has an onboard 1.25V reference that can be
overdriven to a higher voltage. The output swings from 0V
to 2.5V when using the internal reference. The typical
power dissipation is 1.8mW on a single 3V supply.
The LTC1655/LTC1655L are pin compatible with Linear
Technology’s 12-bit V
upgrade path. They are the only buffered 16-bit DACs in
an SO-8 package and they include an onboard reference
for standalone performance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1655/LTC1655L are rail-to-rail voltage output,
Micropower DACs in
TM
– 0.2
– 0.4
– 0.6
– 0.8
– 1.0
1.0
0.8
0.6
0.4
0.2
protocols. The CLK input has a Schmitt
0
0
U
16-Bit Rail-to-Rail
Differential Nonlinearity
OUT
LTC1655/LTC1655L
16384
SO-8 Package
DAC family, allowing an easy
vs Input Code
32768
CODE
49152
1655/55L TA02
65535
1

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LTC1655IN8 Summary of contents

Page 1

... The LTC1655/LTC1655L are pin compatible with Linear Technology’s 12-bit V upgrade path. They are the only buffered 16-bit DACs in an SO-8 package and they include an onboard reference for standalone performance. , LTC and LT are registered trademarks of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation REF ...

Page 2

... LTC1655, REF = 2.2V (Note 8) (External) CC LTC1655L, REF = 1.3V 2.7V (Note 8) (External) CC REF = 2.2V (External (Note 8) CC For Specified Performance LTC1655 LTC1655L (Note ORDER PART NUMBER TOP VIEW LTC1655CN8 LTC1655IN8 LTC1655CS8 7 V OUT LTC1655IS8 REF 6 LTC1655LCN8 5 GND LTC1655LIN8 S8 PACKAGE LTC1655LCS8 8-LEAD PLASTIC SO LTC1655LIS8 ...

Page 3

ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are 4.5V to 5.5V (LTC1655 2.7V to 5.5V (LTC1655L SYMBOL PARAMETER Op Amp DC Performance Short-Circuit ...

Page 4

LTC1655/LTC1655L ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are 4.5V to 5.5V (LTC1655 2.7V to 5.5V (LTC1655L SYMBOL PARAMETER I Digital Input Leakage ...

Page 5

W U TYPICAL PERFORMANCE CHARACTERISTICS (LTC1655 (LTC1655L) unless otherwise noted TC1655 Differential Nonlinearity 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 16,384 32,768 DIGITAL INPUT CODE LTC1655 Integral ...

Page 6

LTC1655/LTC1655L W U TYPICAL PERFORMANCE CHARACTERISTICS (LTC1655 (LTC1655L) unless otherwise noted LTC1655 Minimum Output Voltage vs Output Sink Current 1.0 CODE: ALL 0s 0.8 0.6 125 C 0 0.2 0 ...

Page 7

W U TYPICAL PERFORMANCE CHARACTERISTICS (LTC1655 (LTC1655L) unless otherwise noted LTC1655 Supply Current vs Logic Input Voltage 3.0 2.6 2.2 1.8 1.4 1.0 0 LOGIC INPUT VOLTAGE (V) ...

Page 8

LTC1655/LTC1655L PIN FUNCTIONS CLK (Pin 1): The TTL Level Input for the Serial Interface Clock. D (Pin 2): The TTL Level Input for the Serial Interface IN Data. Data on the D pin is latched into the ...

Page 9

U U DEFI ITIO S Differential Nonlinearity (DNL): The difference between the measured change and the ideal 1LSB change for any two adjacent codes. The DNL error between any two codes is calculated as follows: DNL = ( V – ...

Page 10

LTC1655/LTC1655L U U APPLICATIONS INFORMATION 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 shown ...

Page 11

U TYPICAL APPLICATIONS This circuit shows how to use an LTC1655 to make an optoisolated digitally controlled 4mA to 20mA process controller. The controller circuitry, including the optoisolation, is powered by the loop voltage that can have a wide range ...

Page 12

LTC1655/LTC1655L U TYPICAL APPLICATIONS This circuit shows how to make a bipolar output 16-bit DAC with a wide output swing using an LTC1655 and an LT1077. R1 and R2 resistively divide down the LTC1655 output and an offset is summed ...

Page 13

U 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 ...

Page 14

LTC1655/LTC1655L PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) ...

Page 15

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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. ...

Page 16

... OUT = 4.5V to 5.5V 4.095V CC OUT = 2.7V to 5.5V 2.5V CC OUT DAC, OUT = 5V, Low Power, Deglitched 4.096V CC OUT = 3V, Low Power, Deglitched 2.5V CC OUT DAC in MS8 Package. Output OUT CC DAC in MS8 Package. Output OUT CC 16555lf LT/TP 0800 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 CC ...

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