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LTC8043ES8#TRPBF

P1-P3P4-P4
1
LTC8043
Serial 12-Bit Multiplying
DAC in SO-8
■
Improved Direct Replacement for DAC-8043 and
MAX543
■
SO-8 Package
■
DNL and INL Over Temperature:
±
0.5LSB
■
Easy, Fast and Flexible Serial Interface
■
±
1LSB Maximum Gain Error
■
4-Quadrant Multiplication
■
Low Power Consumption
■
Low Cost
The LTC
®
8043 is a serial-input 12-bit multiplying digital-
to-analog converter (DAC). It is a superior pin compatible
replacement for the DAC-8043. Improvements include
better accuracy, better stability over temperature and
supply variations, lower sensitivity to output amplifier
offset, tighter timing specifications and lower output ca-
pacitance.
An easy-to-use 3-wire serial interface is well-suited to
remote or isolated applications
The LTC8043 is extremely versatile. It can be used for
2-quadrant and 4-quadrant multiplying, programmable
gain and single supply applications, such as noninverting
voltage output mode.
Parts are available in 8-pin SO and PDIP packages and are
specified over the extended industrial temperature range,
–40°C to 85°C.
FEATURES
DESCRIPTION
U
■
Process Control and Industrial Automation
■
Remote Microprocessor-Controlled Systems
■
Digitally Controlled Filters and Power Supplies
■
Programmable Gain Amplifiers
■
Automatic Test Equipment
APPLICATIONS
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
U
SO-8 Multiplying DAC Has Easy 3-Wire Serial Interface
V
DD
V
REF
LTC8043
R
FB
GND
4
7
6
5
8
5V
V
IN
CLOCK
DATA
LOAD
CLK
SRI
LD
1
2
3
I
OUT
33pF
V
OUT
LTC8043 • TA01
–
+
LT
®
1097
Integral Nonlinearity Over Temperature
DIGITAL INPUT CODE
0
–1.0
INTEGRAL NONLINERARITY (LSB)
–0.5
0
1.0
1024 2048 2560
LTC8043 • TPC02
0.5
512 1536 3072 3584 4095
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
2
LTC8043
LTC8043E LTC8043F
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution ● 12 12 Bits
INL Integral Nonlinearity (Note 1) ● ±0.5 ±1 LSB
DNL Differential Nonlinearity Guaranteed Monotonic, T
MIN
to T
MAX
● ±0.5 ±1 LSB
GE Gain Error (Note 2) T
A
= 25°C ±1 ±2 LSB
T
MIN
to T
MAX
● ±2 ±2 LSB
Gain Temperature Coefficient (Note 3) ● 15 15ppm/°C
(∆Gain/∆Temp)
I
LKG
Output Leakage Current (Note 4) T
A
= 25°C ±5 ±5nA
T
MIN
to T
MAX
● ±25 ±25 nA
Zero-Scale Error T
A
= 25°C ±0.03 ±0.03 LSB
T
MIN
to T
MAX
● ±0.15 ±0.15 LSB
PSRR Power Supply Rejection Ratio V
DD
= 5V ±5% ● ±0.0001 ±0.002 ±0.0001 ±0.002 %/%
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
V
DD
to GND................................................. –0.5V to 7V
Digital Inputs to GND.................. –0.5V to (V
DD
+ 0.5V)
V
IOUT
to GND ...............................–0.5V to (V
DD
+ 0.5V)
V
REF
to GND.......................................................... ±25V
V
RFB
to GND .......................................................... ±25V
Maximum Junction Temperature .......................... 150°C
Operating Temperature Range ............... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
LTC8043EN8
LTC8043FN8
LTC8043ES8
LTC8043FS8
ORDER PART
NUMBER
Consult factory for Military grade parts.
ACCURACY CHARACTERISTICS
V
DD
= 5V, V
REF
= 10V, V
IOUT
= GND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
ELECTRICAL CHARACTERISTICS
V
DD
= 5V, V
REF
= 10V, V
IOUT
= GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N8)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S8)
1
2
3
4
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
8
7
6
5
V
REF
R
FB
I
OUT
GND
V
DD
CLK
SRI
LD
ALL GRADES
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Input
R
REF
V
REF
Input Resistance (Note 5) ● 71115 kΩ
AC Performance (Note 3)
Output Current Settling Time (Notes 6, 7) ● 0.25 1 µs
Multiplying Feedthrough Error V
REF
= ±10V, 10kHz Sinewave ● 0.7 1 mV
P-P
Digital-to-Analog Glitch Energy (Notes 6, 8) ● 2 20 nVSEC
THD Total Harmonic Distortion (Note 9) ● –108 –92 dB
Output Noise Voltage Density (Note 10) ● 17 nV/√Hz
Analog Outputs (Note 3)
C
OUT
Output Capacitance DAC Register Loaded to All 1s ● 60 90 pF
DAC Register Loaded to All 0s ● 30 60 pF
3
LTC8043
ELECTRICAL CHARACTERISTICS
V
DD
= 5V, V
REF
= 10V, V
IOUT
= GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
Note 7: To 0.01% for a full-scale change, measured from
falling edge of LD.
Note 8: V
REF
= 0V. DAC register contents changed from all 0s to all 1s or
from all 1s to all 0s.
Note 9: V
REF
= 6V
RMS
at 1kHz. DAC register loaded with all 1s.
Note 10: 10Hz to 100kHz between R
FB
and I
OUT
. Calculation from e
n
=
√4KTRB where: K = Boltzmann constant (J/K°); R = resistance (Ω);
T = resistor temperature (°K); B = bandwidth (Hz).
BLOCK DIAGRAM
W
The ● denotes specifications which apply over the full operating
temperature range.
Note 1: ±0.5LSB = ±0.012% of full scale.
Note 2: Using internal feedback resistor.
Note 3: Guaranteed by design, not subject to test.
Note 4: I
OUT
with DAC register loaded with all 0s.
Note 5: Typical temperature coefficient is 100ppm/°C.
Note 6: I
OUT
load = 100Ω in parallel with 13pF.
40k
10k
40k
20k
40k
20k
40k
20k
40k40k40k
DECODER
BIT 1
(MSB)
BIT 2 BIT 3 BIT 4 BIT 12
(LSB)
CLK
IN
LOAD
V
DD
V
REF
R
FB
I
OUT
SRI
6
GND4
3
2
8043 BD
DAC REGISTER
INPUT 12-BIT SHIFT REGISTER
5
7
8
1
LD
CLK
ALL GRADES
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Digital Inputs
V
IH
Digital Input High Voltage ● 2.4 V
V
IL
Digital Input Low Voltage ● 0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
● 0.001 ±1 µA
C
IN
Digital Input Capacitance V
IN
= 0V,(Note 3) ● 8pF
Timing Characteristics (Note 3)
t
DS
Serial Input to Clock Setup Time ● 30 – 5 ns
t
DH
Serial Input to Clock Hold Time ● 60 25 ns
t
SRI
Serial Input Data Pulse Width ● 80 ns
t
CH
Clock Pulse Width High ● 80 ns
t
CL
Clock Pulse Width Low ● 80 ns
t
LD
Load Pulse Width ● 140 ns
t
ASB
LSB Clocked into Input Register ● 0ns
to Load DAC Register Time
Power Supply
V
DD
Supply Voltage ● 4.75 5 5.25 V
I
DD
Supply Current Digital Inputs = 0V or V
DD
● 100 µA
Digital Inputs = V
IH
or V
IN
● 500 µA
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.
P1-P3P4-P4

LTC8043ES8#TRPBF

Mfr. #:
Buy LTC8043ES8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC Serial 12-B Mult DAC in SO-8
Lifecycle:
New from this manufacturer.
Delivery:
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