MAX509ACAP Maxim Integrated Products, MAX509ACAP Datasheet - Page 17

• Manufacturer Part Number: MAX509ACAP
• Description: IC DAC QUAD SERIAL 8BIT 20-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX509ACAP

• Settling Time: 6µs
• Number Of Bits: 8
• Data Interface: Serial
• Number Of Converters: 4
• Voltage Supply Source: Dual ±
• Power Dissipation (max): 800mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 14. MAX509 AGND Bias Circuit (Negative Offset)
Each DAC output may be configured for 4-quadrant
multiplication using Figure 16 and 17's circuit. One op
amp and two resistors are required per channel. With
R1 = R2:
where NB represents the digital word in DAC register A.
The recommended value for resistors R1 and R2 is
330kΩ (±0.1%). Table 3 shows the digital code vs. out-
put voltage for Figure 16 and 17's circuit.
V
MAX873
OUT
+5V
= V
______________________________________________________________________________________
0.1μF
REF
+2.5V
4-Quadrant Multiplication
[2(NB/256)-1]
ICL7611A
0.1%
330k
R1
NOT SHOWN
INTERFACE
SERIAL
2
3
1
7
+5V
-5V
0.1%
8
330k
R2
6
0.1μF
0.1μF
with Rail-to-Rail Outputs
Quad, Serial 8-Bit DACs
0.1μF
5
REFERENCE INPUTS
4
V
DAC D
DAC B
DAC C
-5V
DAC A
SS
3
17
16
AGND
6
18
V
+5V
DD
MAX509
DGND
8
2
1
20
19
0.1μF
OUTA
OUTB
OUTC
OUTD
17