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參數(shù)資料
| 型號(hào)： | SP9316B-4 |
| 英文描述： | 60 AMP LATCHING POWER RELAY |
| 中文描述： | 16？位CMOS乘法DAC |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 132K |
| 代理商： | SP9316B-4 |
Corporation
SIGNAL PROCESSING EXCELLENCE
184
USING THE SP9316
General Configuration
The
SP9316
can be configured for unipolar
voltage operation (2-quadrant multiplication)
or bipolar voltage operation (4-quadrant multi-
plication.) Coding is binary and offset binary
respectively. In bipolar operation both the ref-
erence signal and the number represented by the
digital input applied to the
SP9316
may be of
either positive or negative polarity.
Pin 20 — MSB LATCH — MSB Latch control.
Level–triggered. Logic 0 strobes data into latch;
logic 1 allows data to update DAC directly.
Pin 21 — DB
16
— Data Bit 16 (LSB) .
Pin 22 — DB
15
— Data Bit 15.
Pin 23 — DB
14
— Data Bit 14.
Pin 24 — DB
13
— Data Bit 13.
PIN ASSIGNMENTS
Pin 1 — DB
12
— Data Bit 12.
Pin 2 — DB
11
— Data Bit 11.
Pin 3 — DB
10
— Data Bit 10.
Pin 4 — DB
9
— Data Bit 9.
Pin 5 — DB
8
— Data Bit 8.
Pin 6 — DB
7
— Data Bit 7.
Pin 7 — DB
6
— Data Bit 6.
Pin 8 — DB
5
— Data Bit 5.
Pin 9 — DB
4
— Data Bit 4.
Pin 10 — DB
3
— Data Bit 3.
Pin 11 — DB
2
— Data Bit 2.
Pin 12 — DB
1
— Data Bit 1 (MSB).
Pin 13 — V
REF
In — Voltage Reference Input.
Pin 14 — R
FB
— Feedback Resistor.
Pin 15 — I
OUT2
— Current Output.
Pin 16 — I
OUT1
— Inverted Current Output.
Pin 17 — VDD — +15V Power Supply.
Pin 18 — GND — Analog GND.
Pin 19 — LSB LATCH — LSB Latch control.
Level–triggered. Data is latched with strobe at
logic 0; logic 1 allows data to update DAC
directly.
FEATURES…
The
SP9316
is a 16-bit, monolithic CMOS,
multiplying digital-to-analog converter with two
8-bit input registers for direct microprocessor
interface. It offers two– and four–quadrant mul-
tiplying capability with TTL/DTL and CMOS
logic compatibility. It is ideally suited for Auto-
mated Test Equipment, medical instrumenta-
tion and high–energy physics applications. Op-
erating from a single +15V supply, power dissi-
pation is less than 60mW. High accuracy and
monotonicity are achieved without laser–trim-
ming through the use of a highly accurate, low–
TCR thin–film resistor process. A unique digital
decoding technique of the 4 MSB’s results in
excellent linearity and stability over both time
and temperature. The
SP9316
is packaged in
hermetic 24-pin ceramic or molded plastic.
Models are available for operation over the
commercial (0
°
C to 70
°
C) and military (–55
°
C
to +125
°
C) temperature ranges. For product
screened to MIL–STD–883, please consult the
factory.
Figure 1. Unipolar Operation
V
REF
BIT 1 (MSB)
MSB LATCH
LSB LATCH
_
+
A
SP9316
I
OUT1
400‰
DIGITAL
INPUT
+15V
I
OUT2
R
OS
V
OUT
All "ones":
V
OUT
= –V
REF
+ 1LSB
0.01μF
1μF
+
17
18
13
14
R
FB
16
15
BIT 16 (LSB)
GND
NOTE:
To maintain specified linearity, the external amplifier (A)
must be nulled. Apply an "all zeroes" digital input and adjust
R
OS
for V
OUT
= 0±1mV.
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