ISL5857 Intersil Corporation, ISL5857 Datasheet - Page 2

• Manufacturer Part Number: ISL5857
• Description: High Speed D/A Converter
• Manufacturer: Intersil Corporation

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Typical Applications Circuit
Functional Block Diagram
50Ω
(LSB) D0
+
10µF
CLK
D10
D11
D1
D2
D3
D4
D5
D6
D7
D8
D9
2
BEAD
10µH
0.1µF
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
DECODER
UPPER
D11 (MSB) (1)
D10 (2)
D9 (3)
D8 (4)
D7 (5)
D6 (6)
D5 (7)
D4 (8)
D3 (9)
D2 (10)
D1 (11)
D0 (LSB) (12)
CLK (28)
DCOM (26, 13, 14)
DV
LATCH
INPUT
5-BIT
DD
(27)
ISL5857
ISL5857
38
IOUTA
(25, 19) NC
(16) REFLO
(15) SLEEP
(18) FSADJ
REFLO
(22) IOUTA
(21) IOUTB
(17) REFIO
(23) COMP
(20) ACOM
(24) AV
REFERENCE
VOLTAGE
SWITCH
MATRIX
INT/EXT
DD
REFIO
IOUTB
0.1µF
50Ω
38
GENERATION
FSADJ
SEGMENTS
CASCODE
CURRENT
SOURCE
31 MSB
7 LSBs
BIAS
1:1, Z1:Z2
SLEEP
+
0.1µF
FERRITE
DCOM
BEAD
10µH
ONE CONNECTION
0.1µF
COMP
10µF
(50Ω)
R
SET
+
ANY 50Ω LOAD
+3.3V (V
1.91kΩ
REPRESENTS
ACOM
November 12, 2004
DD
)
FN6079.1