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參數資料
| 型號： | DAC312HS |
| 廠商： | PRECISION MONOLITHICS INC |
| 元件分類： | DAC |
| 英文描述： | 12-Bit High Speed Multiplying D/A Converter |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 0.25 us SETTLING TIME, 12-BIT DAC, PDSO20 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 269K |
| 代理商： | DAC312HS |
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
12-Bit Hgh Speed Multiplying
D/AConverter
DAC312
Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FEATURES
Differential Nonlinearity:
6
1/2 LSB
Nonlinearity: 0.05%
Fast Settling Time: 250 ns
High Compliance: –5 V to +10 V
Differential Outputs: 0 to 4 mA
Guaranteed Monotonicity: 12 Bits
Low Full-Scale Tempco: 10 ppm/
8
C
Circuit Interface to TTL, CMOS, ECL, PMOS/NMOS
Low Power Consumption: 225 mW
Industry Standard AM6012 Pinout
Available In Die Form
PIN CONNE CT IONS
20-Pin Hermetic DIP (R-Suffix),
20-Pin Plastic DIP (P-Suffix),
20-Pin SOL (S-Suffix)
GE NE RAL DE SCRIPT ION
T he DAC312 series of 12-bit multiplying digital-to-analog con-
verters provide high speed with guaranteed performance to
0.012% differential nonlinearity over the full commercial oper-
ating temperature range.
T he DAC312 combines a 9-bit master D/A converter with a
3-bit (MSBs) segment generator to form an accurate 12-bit D/A
converter at low cost. T his technique guarantees a very uniform
step size (up to
±
1/2 LSB from the ideal), monotonicity to
12-bits and integral nonlinearity to 0.05% at its differential cur-
rent outputs. In order to provide the same performance with a
12-bit R-2R ladder design, an integral nonlinearity over tem-
perature of 1/2 LSB (0.012%) would be required.
T he 250 ns settling time with low glitch energy and low power
consumption are achieved by careful attention to the circuit de-
sign and stringent process controls. Direct interface with all
popular logic families is achieved through the logic threshold
terminal.
FUNCT IONAL BLOCK DIAGRAM
High compliance and low drift characteristics (as low as
10 ppm/
°
C) are also features of the DAC312 along with an ex-
cellent power supply rejection ratio of
±
.001% FS/%
V. Oper-
ating over a power supply range of +5/–11 V to
±
18 V the
device consumes 225 mW at the lower supply voltages with an
absolute maximum dissipation of 375 mW at the higher supply
levels.
With their guaranteed specifications, single chip reliability and
low cost, the DAC312 device makes excellent building blocks
for A/D converters, data acquisition systems, video display driv-
ers, programmable test equipment and other applications where
low power consumption and complete input/output versatility
are required.
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