max5203aeubt Maxim Integrated Products, Inc., max5203aeubt Datasheet - Page 11

• Manufacturer Part Number: max5203aeubt
• Description: Low-cost, Voltage-output, 16-bit Dacs With Internal Reference In ?max
• Manufacturer: Maxim Integrated Products, Inc.

The MAX5200–MAX5203 are designed for unipolar opera-
tion, but can be used in bipolar applications with an exter-
nal amplifier and resistors. Figure 5 shows the
MAX5200–MAX5203 configured for bipolar operation. The
op amp is set for unity gain. Table 1 lists the offset binary
code for this circuit. The output voltage range is ±V
Figure 5. MAX5200–MAX5203 Typical Operating Circuit—Bipolar Output
Table 1. Bipolar Code Table
MSB
DAC LATCH CONTENTS
1111 1111 1111 1111
1000 0000 0000 0001
1000 0000 0000 0000
0111 1111 1111 1111
0000 0000 0000 0000
Low-Cost, Voltage-Output, 16-Bit DACs with
______________________________________________________________________________________
LSB
MC68XXXX
PCS0
SCLK
MOSI
+V
+V
0V
-V
-V
Bipolar Configuration
REF
REF
ANALOG OUTPUT, V
REF
REF
(1 / 32,768)
(32,768 / 32,768)
(32,767 / 32,768)
(1 / 32,768)
CS
DIN
SCLK
LDAC
CLR
DGND
MAX5200–
MAX5203
V
DD
0.1 F
AGND
10 F
REF
Internal Reference in µMAX
OUT
.
REF
OUT
Digital and AC transient signals coupling to AGND can
create noise at the output. Connect AGND to the high-
est quality ground available. Use proper grounding
techniques, such as a multilayer board with a low-
inductance ground plane. Wire-wrapped boards and
sockets are not recommended. For optimum system
performance, use printed circuit (PC) boards with sep-
arate analog and digital ground planes. Connect the
two ground planes together at the low-impedance
power-supply source. Connect DGND and AGND pins
together at the IC. The best ground connection is
achieved by connecting the DAC’s DGND and AGND
together, and then connecting that point to the system
analog ground plane. If the DAC’s DGND is connected
to the system digital ground, digital noise can get
through the DAC’s analog portion.
TRANSISTOR COUNT: 8764
PROCESS: BiCMOS
MAX400
+5V
-5V
Layout Considerations
Chip Information
BIPOLAR
OUT
( V
REF
)
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