8408 Datasheet, PDF (2/20 Pages) Maxwell Technologies – Quad 8-Bit Multiplying CMOS D/A Converter with Memory

Quad 8-Bit Multiplying CMOS
D/A Converter with Memory
TABLE 1. 8408 PINOUT DESCRIPTION
PIN
SYMBOL
DESCRIPTION
1
2
3
4
5
6
7
8
9
10 - 15
16
17
18
19 - 20
21
22
23
24
25
26
27
28
V_DD
V_REFA
R_FBA
I_{OUT 1A}
I_{OUT 2A}/I_{OUT 2B}
I_{OUT 1B}
R_FBB
V_REFB
DB0 (LSB)
DB 1 - 6
DB 7 (MSB)
A/B
R/W
DS1 - 2
V_REFD
R_FBD
I_{OUT 1D}
I_{OUT 2C}/I_{OUT 2D}
I_{OUT 1C}
R_FBC
V_REFC
DGND
Supply Voltage
REF Voltage (A)
REF Feedback (A)
Current Output (1A)
Current Output (2A/2B)
Current Output (1B)
REF Feedback (B)
REF Voltage (B)
Data Bit 0, least significant bit
Data bits 1-6
Data Bit 7, most significant bit
A/B
Read/Write
Data Strobes
REF Voltage (D)
REF Feedback (D)
Current Output (1D)
Current Output (2C/2D)
Current Output (1C)
REF Feedback (C)
REF Voltage (C)
Digital Ground
8408
TABLE 2. 8408 ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
MIN
MAX
UNIT
V_DD to I_{OUT 2A,} I_{OUT 2B,} I_{OUT 2C,} I_{OUT 2D}
V_DD to DGND
I_{OUT 1A,} I_{OUT 1B,} I_{OUT 1C,} I_{OUT 1D} to DGND
R_RFA, R_RFB, V_RFC, R_RFD to I_OUT
I_{OUT 2A,} I_{OUT 2B,} I_{OUT 2C,} I_{OUT 2D} to DGND
DB0 through DB7 to DGND
Control Logic Input Voltage to DGND
V_REFA, V_REFB, V_REFC, V_REFD to I_{OUT 2A,} I_{OUT 2B,} I_{OUT 2C,} I_{OUT 2D}
--
0
7
V
--
0
7
V
--
-0.3
V_DD + 0.3
V
--
--
±25
V
--
-0.3
V_DD + 0.3
V
--
-0.3
V_DD + 0.3
V
--
-0.3
V_DD + 0.3
V
--
--
±25
V
08.20.02 REV 1
All data sheets are subject to change without notice 2
©2002 Maxwell Technologies
All rights reserved.