DS1267 Datasheet, PDF (1/12 Pages) Dallas Semiconductor – Dual Digital Potentiometer Chip

www.dalsemi.com
DS1267
Dual Digital Potentiometer Chip
FEATURES
§ Ultra-low power consumption, quiet,
pumpless design
§ Two digitally controlled, 256-position
potentiometers
§ Serial port provides means for setting and
reading both potentiometers
§ Resistors can be connected in series to
provide increased total resistance
§ 14-pin DIP, 16-pin SOIC, 20-pin TSSOP
packages
§ Resistive elements are temperature
compensated to ±0.3 LSB relative linearity
§ Standard resistance values:
– DS1267-10 ~ 10 kΩ
– DS1267-50 ~ 50 kΩ
– DS1267-100 ~ 100 kΩ
§ Operating Temperature Range:
– Industrial: -40°C to +85°C
PIN DESCRIPTIONS
L0, L1 - Low End of Resistor
H0, H1 - High End of Resistor
W0, W1 - Wiper Terminal of Resistor
V_B
S_OUT
- Substrate Bias Voltage
- Stacked Configuration Output
RST - Serial Port Reset Input
DQ
- Serial Port Data Input
CLK - Serial Port Clock Input
C_OUT - Cascade Port Output
V_CC
- +5 Volt Supply
GND - Ground
NC
- No Internal Connection
PIN ASSIGNMENT
VB 1
NC
2
H1 3
L1 4
W1 5
RST
6
CLK
7
GND 8
16
V_CC
15 NC
14
S_OUT
13 W0
12 H0
11 L0
10
C_OUT
9 DQ
16-Pin SOIC (300-mil)
See Mech. Drawings Section
VB 1
H1
2
L1 3
W1 4
RST 5
CLK
6
GND
7
14
V_CC
13
S_OUT
12 W0
11 H0
10 L0
9
C_OUT
8 DQ
14-Pin DIP (300-mil)
See Mech. Drawings Section
1 of 12
VB 1
NC
2
H1 3
20
V_CC
19 NC
18 NC
L1 4
W1 5
17
S_OUT
16 W0
RST
6
15 H0
CLK
7
NC 8
NC
9
GND 10
14 L0
13
C_OUT
12
NC
11 DQ
20-Pin TSSOP (173-mil)
102199