X79000 Datasheet, PDF (2/18 Pages) Intersil Corporation – NV DAC with Selectable Output Range and Memory

X79000, X79001, X79002
X79001 / X79002 FUNCTIONAL DIAGRAM
Vcc
Vss
VH VL
Vcc
Vss
VH VL
RDY
A[5:0]
SCK
SO
SI
CS
Voltage
Reference
Power-up
Logic
Serial
Interface
and
Control
Logic
Variable Gain
& Level Shift
Variable Gain
& Level Shift
General
Purpose
EEPROM
DAC Initial
Value Register
DAC
Core
DAC Register
DAC Shift
Register
X79001
Vout
Variable Gain
+
OE
Vref
Voltage
Reference
& Level Shift
Vbuf
Variable Gain
–
& Level Shift
RDY
Power-up
Logic
VFB
DAC
Core
A[4:0]
SCK
CLR
SO
SI
CS
Serial
Interface
and
Control
Logic
General
Purpose
EEPROM
DAC Initial
Value Register
DAC Register
DAC Shift
Register
X79002
Vout
CLR
UP
DOWN
PIN CONFIGURATION
TSSOP
SCK 1
20
A0 2
19
A1 3
18
A2 4
17
SI 5
16
SO 6
15
RDY 7
14
UP 8
13
DOWN 9
12
OE 10
11
X79000
CS
CLR
V_CC
VH
VL
Vref
V_SS
Vout
Vbuf
VFB
CLR
CS
SCK
A0
A1
A2
SI
SO
RDY
OE
TSSOP
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
V_CC
A3
VH
VL
A4
A5
V_SS
Vout
Vbuf
VFB
X79001
DNC = Do Not Connect
CS
SCK
A0
A1
A2
SI
SO
RDY
UP
DOWN
TSSOP
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
X79002
CLR
V_CC
A3
VH
VL
Vref
A4
V_SS
Vout
DNC
ORDERING INFORMATION
Voltage
Voltage References Outputs
Features
DAC Control
System
Control
Device
X79000V20I
X79001V20I
X79002V20I
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
Y
N
Y
A0, A1, A2
Y
N
A0, A1, A2, A3, A4, A5
Y
Y
A0, A1, A2, A3, A4
Y
Notes: Y = Yes, N = No
*All options are for 12-bit resolution, industrial temperature operating range, and a 20-pin TSSOP package.
2
FN8147.0
March 17, 2005