|
|
PDF DAC4814AP Data sheet ( Hoja de datos )
| Número de pieza | DAC4814AP | |
| Descripción | Quad 12-Bit Digital-to-Analog Converter Serial Interface | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de DAC4814AP (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
® DAC4814
Quad 12-Bit Digital-to-Analog Converter
(Serial Interface)
FEATURES
q COMPLETE QUAD DAC —
INCLUDES INTERNAL REFERENCES AND
OUTPUT AMPLIFIERS
q GUARANTEED SPECIFICATIONS
OVER TEMPERATURE
q GUARANTEED MONOTONIC OVER
TEMPERATURE
q HIGH-SPEED SERIAL INTERFACE
(10MHz CLOCK)
q LOW POWER: 600mW (150mW/DAC)
q LOW GAIN DRIFT: 5ppm/°C
q LOW NONLINEARITY: ±1/2 LSB max
q UNIPOLAR OR BIPOLAR OUTPUT
q CLEAR/RESET TO UNIPOLAR OR
BIPOLAR ZERO
+VL 28
+VS 15
–VS 7
AGND 12
DGND 17
DESCRIPTION
The DAC4814 is one in a family of dual and quad 12-
bit digital-to-analog converters. Serial, 8-bit, 12-bit
interfaces are available.
The DAC4814 is complete. It contains CMOS logic,
switches, a high-performance buried-zener reference,
and low-noise bipolar output amplifiers. No external
components are required for either unipolar 0 to 10V,
0 to –10V, or bipolar ±10V output ranges.
The DAC4814 has a high-speed serial interface
capable of being clocked at 10MHz. Serial data are
clocked DAC D MSB first into a 48-bit shift register,
then strobed into each DAC separately or simulta-
neously as required. The DAC has an asynchronous
clear control for reset to unipolar or bipolar zero
depending on the mode selected. This feature is useful
for power-on reset or system calibration. The DAC4814
is packaged in a 28-pin plastic DIP rated for the –40°C
to +85°C extended industrial temperature range.
High-stability laser-trimmed thin film resistors assure
high reliability and true 12-bit integral and differential
linearity over the full specified temperature range.
Serial
Data and
Control In
Serial
Data 18
Out
Logic
DAC4814
10V
Ref
10kΩ
10kΩ
A5
DAC A
DAC B
DAC C
DAC D
20kΩ
20kΩ
A1
20kΩ
20kΩ
A2
20kΩ
20kΩ
A3
20kΩ
20kΩ
A4
4 +VREF Out
3 Inv In
11 Inv Out
10 VREF In
6 BPO A
2 VOUT A
5 BPO B
1 VOUT B
9 BPO C
14 VOUT C
8 BPO D
13 VOUT D
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1991 Burr-Brown Corporation
PDS-1111B
Printed in U.S.A. April, 1995
1 page  
TYPICAL PERFORMANCE CURVES (CONT)
TA = +25°C, VS = ±12V or ±15V, VL = +5V unless otherwise noted.
CHANGE OF GAIN, BIPOLAR OFFSET AND ZERO ERROR
vs TEMPERATURE
1.5E+00
1.5E–02
1.0E+00
5.0E+00 Bipolar Zero
0.0E+00
Gain Error
1.0E–02
5.0E–03
0.0E+00
–5.0E–01
Bipolar Offset
–5.0E–03
–1.0E+00
–1.0E–02
–1.5E+00
–40
–20
0 20 40 60
Temperature (°C)
–1.5E–02
+80 100
POWER SUPPLY CURRENT vs TEMPERATURE
21.8
+IL (All Logic Inputs = 2V)
21.5
21.2
20.9
20.6
IS
20.3
+IL (All Logic Inputs = 0V or VL)
20
19.4
–40
–20
0 20 40 60
Temperature (°C)
80
2.8
2.4
2
1.6
1.2
0.8
0.4
0
OUTPUT VOLTAGE SWING vs RESISTOR LOAD
25
20
VS = ±15V
VL = 5V
15
10V REF
10
5
0
10 100 1K 10K
Load Resistance (Ω)
FULL-SCALE OUTPUT SWING
BIPOLAR (20V Step)
0V
VOUT
+5V LATCH
0V
Time (2µs/div)
CROSSTALK (Bipolar Mode)
0V V B
OUT
VOUT A
+5V LATCH A
0V
Time (500ns/div)
NOTE: Crosstalk is dominated by digital crosstalk/
feedthrough of the LATCH signal.
FULL-SCALE OUTPUT SWING
UNIPOLAR (10V Step)
0V V
OUT
Time (2µs/div)
®
5 DAC4814
5 Page 
+5V
+
1µF
28
+15V
+
1µF
15
–15V
7
1µF +
Serial
Data and
Control In
DAC4814
10kΩ
10V
Ref 10kΩ
A5
DAC A
DAC B
DAC C
DAC D
20kΩ
20kΩ
A1
20kΩ
20kΩ
A2
20kΩ
20kΩ
A3
20kΩ
20kΩ
A4
4
3 +5V 28
+
1µF
11
10 +15V 15
6
+
1µF
2 VOUT A
5
–15V
7
1µF +
1 VOUT B
9
14 VOUT C
Serial
Data and
Control In
8
13 VOUT D
DAC4814
10kΩ
10V
Ref 10kΩ
A5
DAC A
DAC B
DAC C
DAC D
20kΩ
20kΩ
A1
20kΩ
20kΩ
A2
20kΩ
20kΩ
A3
20kΩ
20kΩ
A4
4
3
11
10
6
2 VOUT A
5
1 VOUT B
9
14 VOUT C
8
13 VOUT D
MODE 25
+5V
17
DGND
12
AGND
FIGURE 3. Analog Connections for ±10V DAC Output.
0 To –10V Output Range
For 0 to –10V unipolar outputs connect the DAC4814 as
shown in Figure 5. Connect the MODE to logic low (GND)
for reset to unipolar zero.
CONNECTION TO DIGITAL BUS
Cascaded Bus Connection
Multiple DAC4814s can be connected to the same CLK and
DATA input lines in two ways. Since the output of the DAC
shift register is available, any number of DAC4814s can be
MODE 25
17
DGND
12
AGND
FIGURE 4. Analog Connections for 0 to +10V DAC Output.
cascaded on the same input bit stream as shown in Figure 6.
This arrangement allows all DACs in the system to be
updated simultaneously and requires a minimum number of
control signal inputs. However, up to 48N CLK cycles may
be required to update any given DAC, where
N = number of DAC4814s.
Parallel Bus Connection
Several DAC4814s can also have their DATA inputs con-
nected in parallel as shown in Figure 7. This allows any
DAC in the system to be updated in a maximum of 48 CLK
cycles.
®
11 DAC4814
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet DAC4814AP.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DAC4814AP | Quad 12-Bit Digital-to-Analog Converter Serial Interface | Burr-Brown Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |