DAC-HK12BGC Murata Power Solutions Inc, DAC-HK12BGC Datasheet
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DAC-HK12BGC
Manufacturer Part Number
DAC-HK12BGC
Description
Digital To Analog Converter
Manufacturer
Murata Power Solutions Inc
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DAC-HK12BGC
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FEATURES
DATEL
PIN
1
2
3
4
5
6
7
8
9
10
11
12
BLOCK DIAGRAM
12-Bit resolution
Integral nonlinearity error ±1/2LSB, max.
Differential nonlinearity error ±3/4LSB, max.
MIL-STD-883 high-reliability versions available
Input register
3μs fast settling time
Guaranteed monotonicity over full temperature
range
INPUT/OUTPUT CONNECTIONS
®
FUNCTION
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12 (LSB)
PIN
24
23
22
21
20
19
18
17
16
15
14
13
LOAD 16
FUNCTION
REFERENCE OUT
GAIN ADJUST
+15V SUPPLY
GROUND
SUMMING JUNCTION
20V RANGE
10V RANGE
BIPOLAR OFFSET
LOAD
VOLTAGE OUTPUT
–15V SUPPLY
+5V SUPPLY
+5V
BITS
®
MSB
REGISTER
1 2 3 4
1
74LS75
• 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com
REF.
OUT
2 3 4
24
The DAC-HK Series hybrid D/A converters are
highperformance 12-bit devices with a fast settling
voltage output. They incorporate a level-controlled
input storage register and are specifi cally designed
for systems applications such as data bus interfac-
ing with computers. When the “load” input is high,
data in the storage register is held, and when the
load input is low, data is transferred through to
the DAC. There are two basic models available by
coding option: binary and two’s complement. The
output voltage ranges are externally pinprogram-
mable and include: 0 to +5V, 0 to +10V, ±2.5V,
±5V and ±10V.
PRODUCT OVERVIEW
DIGITAL INPUTS
Figure 1. DAC-HK Functional Block Diagram
D/A CONVERTER
REGISTER
5 6 7 8
5 6 7 8
ADJUST
74LS75
GAIN
23
9 10 11 12
9 10 11 12
REGISTER
BIPOLAR
OFFSET
74LS75
17
High-Performance, 12-Bit DAC’s with Input Registers
LSB
SUPPLY
+15V
22
SUPPLY
–15V
14
5k
Ω
The DAC-HK Series contains a precision zener
reference circuit. This eliminates code-dependent
ground currents by routing current from the
positive supply to the internal ground node as
determined by the R-2R ladder network. The
internal feedback resistors for the on-board ampli-
fi er track the ladder network resistors, enhancing
temperature performance. The excellent tracking
of the resistors results in a differential nonlinearity
tempco of ±2ppm/°C maximum. The temperature
coeffi cient of gain is ±20ppm/°C maximum, and
the tempco of zero is ±5ppm/°C maximum.
SUPPLY
+5V
5k
13
Ω
19
18
20
15
21
20V RANGE
10V RANGE
SUMMING
JUNCTION
VOLTAGE
OUTPUT
GROUND
DAC-HK Series
MDA_DAC-HK.B01 Page 1 of 5