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CA3338 View Datasheet(PDF) - Intersil

Part NameDescriptionManufacturer
CA3338 CMOS Video Speed, 8-Bit, 50 MSPS, R2R D/A Converters Intersil
Intersil Intersil
CA3338 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
CA3338, CA3338A
CLOCK
8 DATA BITS
+5V
15 LE
CA3338
1-7, 9
D0 - D7
16
VDD
+
14
COMP
8 VSS
12
VOUT
13
VREF+
VREF- 11
VEE 10
+5V
+2.5V
-2.5V
R1
+
+
PROBE TIP
OR BNC
CONNECTOR
R2
REMOTE
VOUT
R3
DIGITAL
GROUND
ANALOG
GROUND
FUNCTION
CONNECTOR
R1
R2
Oscilloscope Display
Probe Tip
82
62
Match 93Cable
BNC
75
160
Match 75Cable
BNC
18
130
Match 50Cable
BNC
Short
75
NOTES:
3. VOUT(P-P) is approximate, and will vary as ROUT of D/A varies.
4. All drawn capacitors are 0.1µF multilayer ceramic/4.7µF tantalum.
5. Dashed connections are for unipolar operation. Solid connection are for bipolar operation.
R3
VOUT (P-P)
N/C
1V
93
1V
75
1V
50
0 79V
FIGURE 5. CA3338 DYNAMIC TEST CIRCUIT
CLOCK
8 DATA
BITS
15
1-7, 9
CA3338
LE
VOUT 12
D0 - D7
+5V
+ 4.7µF
TAN
0.1µF
CER.
16 VDD VREF+ 13
14
11
COMPVREF -
8 VSS
VEE 10
NOTES:
1. Both VREF+ pin and 392resistor should be
bypassed within 1/4 inch.
2. Keep nodal capacitance at CA3450 pin 3 as
low as possible.
3. VOUT Range = ±3V at CA3450.
+6V
4.7µF TAN
+
0.1µF
CER.
UP TO 5 OUTPUT LINES
FOR R = 75, 3 LINES
FOR R = 50
7, 8
5pF
R
+3.00V AT 25mA 14
9
+ 11
392
6
1%
3 CA3450
VOUT1
R
+ 1k
-
4, 5, 12, 13
VOUT = ±1.5VPEAK
10k
R
VOUTN
392
0.1µF CER.
R
1%
ADJUST
OFFSET
+
-6V
4.7µF
TAN
FIGURE 6. CA3338 AND CA3450 FOR DRIVING MULTIPLE COAXIAL LINES
7
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