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Número de pieza | DAC-08CN | |
Descripción | 8-bit high-speed multiplying D/A converter | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de DAC-08CN (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
No Preview Available ! Philips Semiconductors Linear Products
8-Bit high-speed multiplying D/A converter
Product specification
DAC08 Series
DESCRIPTION
The DAC08 series of 8-bit monolithic multiplying Digital-to-Analog
Converters provide very high-speed performance coupled with low
cost and outstanding applications flexibility.
Advanced circuit design achieves 70ns settling times with very low
glitch and at low power consumption. Monotonic multiplying
performance is attained over a wide 20-to-1 reference current range.
Matching to within 1 LSB between reference and full-scale currents
eliminates the need for full-scale trimming in most applications.
Direct interface to all popular logic families with full noise immunity is
provided by the high swing, adjustable threshold logic inputs.
Dual complementary outputs are provided, increasing versatility and
enabling differential operation to effectively double the peak-to-peak
output swing. True high voltage compliance outputs allow direct
output voltage conversion and eliminate output op amps in many
applications.
All DAC08 series models guarantee full 8-bit monotonicity and
linearities as tight as 0.1% over the entire operating temperature
range. Device performance is essentially unchanged over the ±4.5V
to ±18V power supply range, with 37mW power consumption
attainable at ±5V supplies.
The compact size and low power consumption make the DAC08
attractive for portable and military aerospace applications.
FEATURES
• Fast settling output current—70ns
• Full-scale current prematched to ±1 LSB
• Direct interface to TTL, CMOS, ECL, HTL, PMOS
• Relative accuracy to 0.1% maximum over temperature range
• High output compliance -10V to +18V
• True and complemented outputs
• Wide range multiplying capability
• Low FS current drift — ±10ppm/°C
• Wide power supply range—±4.5V to ±18V
• Low power consumption—37mW at ±5V
APPLICATIONS
• 8-bit, 1µs A-to-D converters
• Servo-motor and pen drivers
PIN CONFIGURATIONS
F, N Packages
VLC 1
IO 2
V– 3
IO 4
B1 (MSB) 5
B2 6
B3 7
B4 8
16 COMP
15 VREF–
14 VREF+
13 V+
12 B8 (LSB)
11 B7
10 B6
9 B5
TOP VIEW
D1 Package
V+ 1
VREF+ 2
VREF– 3
COMPEN 4
VLC 5
IO 6
V– 7
IO 8
16 B8 (LSB)
15 B7
14 B6
13 B5
12 B4
11 B3
10 B2
9 B1 (MSB)
TOP VIEW
NOTE:
1. SO and non-standard pinouts.
• Waveform generators
• Audio encoders and attenuators
• Analog meter drivers
• Programmable power supplies
• CRT display drivers
• High-speed modems
• Other applications where low cost, high speed and complete in-
put/output versatility are required
• Programmable gain and attenuation
• Analog-Digital multiplication
August 31, 1994
716 853-0045 13721
1 page Philips Semiconductors Linear Products
8-Bit high-speed multiplying D/A converter
Product specification
DAC08 Series
AC ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
TEST CONDITIONS
tS Settling time
To ± 1/2LSB, all bits
switched on or off,
TA=25°C
Propagation delay
tPLH Low-to-High TA=25°C, each bit.
tPHL High-to-Low
All bits switched
DAC08C
Min Typ Max
DAC08E
DAC08
Min Typ Max
DAC08H
DAC08A
Min Typ Max
UNIT
70 135
70 135
70 135
ns
35 60
35 60
35 60
ns
TEST CIRCUITS
VREF
V– V+
RREF
R15
16
14
15
3 13
DAC-08
4
5-12 1 2
CONTROL
LOGIC
Rf
–
NE5534
+
ERROR
OUTPUT
REFERENCE DAC
ACCURACY > 0.006%
Figure 1. Relative Accuracy Test Circuit
0.1µF VCC
13
5 +2.0VDC
6 14 1.0k
2.4V
eIN 0.4V
1.0V
1.4V
tPHL = tPLH = 10ns
USE RL to GND
FOR TURN OFF
7 15
81
9 DAC-08 2
1.0k
0.1µF
RL FOR SETTLING TIME
SETTLING TIME
RL = 500Ω
10 4
MEASUREMENT
0
MEASUREMENT
11 16
eIN 12
eO (ALL BITS
SWITCHED LOW
TO HIGH)
tS = 70ns TYPICAL
TO ±1/2 LSB
51
0.1µF 3
15pF
CO ≤ 25pF
TRANSIENT 0
RESPONSE
-100mV
RL = 50Ω
PIN 4 TO GND
VEE
tPLH
tPHL
Figure 2. Transient Response and Settling Time
August 31, 1994
720
5 Page Philips Semiconductors Linear Products
8-Bit high-speed multiplying D/A converter
Product specification
DAC08 Series
RECOMMENDED FULL-SCALE AND ZERO-SCALE ADJUST
VREF
R1
R2
14
15
R3
DAC-08
NOTES:
R1 = low T.C.
R3 = R1 + R2
R2 ≈ 0.1 R1 to minimize pot. contribution to full-scale drift
4
2
R4 = 1MΩ
V+ V–
RS = 20kΩ
UNIPOLAR VOLTAGE OUTPUT FOR LOW IMPEDANCE OUTPUT
5kΩ (LOW T.C.)
IR = 2mA
14
15
DAC-08
4
2
–
NE531
OR
EQUIV
+
5kΩ
VOUT =
0 TO +10V
August 31, 1994
726
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet DAC-08CN.PDF ] |
Número de pieza | Descripción | Fabricantes |
DAC-08C | 8-Bit High-Speed Multiplying D/A Converter | ON Semiconductor |
DAC-08CN | 8-Bit high-speed multiplying D/A converter | NXP Semiconductors |
DAC-08CN | 8-bit high-speed multiplying D/A converter | NXP Semiconductors |
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