HS9338 Datasheet, PDF (1/3 Pages) API Technologies Corp – Complete μP Compatible 12-Bit DAC

Complete µP Compatible 12-Bit D AC
H S9338
D ata Converter Line
FEATURES
• Output ranges: 0 to +10V, ±10V .
• Coding: binary; offset binary
• Linearity: ±0.01%
• Settling time: 2.5 µS
• µP compatible
• 28-pin package
• CM OS, TTL compatible
• Double buffered inputs
DESCRIPTION
HS9338 is a µP-compatible, complete 12-bit double
buffered digital-to-analog converter. To enhance
application flexibility, the data input registers have
been configured as 3 independent 4-bit bytes. This
enables the user to directly interface to 4, 8, and
12-bit data buses. HS9338 comes complete with
interface control logic. The three separate byte
enable inputs latch data from the bus into the
appropriate primary data latches. The LDA C input
transfers data from the primary latches to the DA C
register. In addition to these input functions are two
chip select inputs and a read/write input allowing
direct memory-map configurations. A ll input con-
trols are static to allow hardwired configurations.
FUNCTIONAL DIAGRAM
4
CS
3
CS
2
WR
6
HBE
5
M BE
7
LBE
1
LDA C
CONTROL
LOGIC
M SB
16 17 18 19
HIGH BYTE
INPUT REG
DATA INPUTS
20 21 22 23
SUM
LSB JCT
24 25 26 27 12
5V
RANGE
10
M IDDLE BYTE
INPUT REG
LOW BYTE
INPUT REG
DAC REGISTER
12-BIT M DAC
–
+
REFERENCE
–
+
HS 9338
28
15
9
8
+5V – 15V +15V GND
10
G A IN
10
B IPO LA R
165Cedar Hill Street,Marlborough,MA01752 Tel:[phone] Fax: [phone]
www.SpectrumMicrowave.com
11
VOUT