WM2618
Production Data
PIN CONFIGURATION
VDD
DIN
SCLK
NCS
1
2
3
4
8
7
6
5
OUTB
REFIN
AGND
OUTA
PIN DESCRIPTION
PIN NO
NAME
DIN
TYPE
DESCRIPTION
1
2
3
4
5
6
7
8
Digital input
Digital input
Digital input
Serial data input.
SCLK
NCS
Serial clock input.
Chip select. This pin is active low.
OUTA
AGND
REFIN
OUTB
VDD
Analogue output DAC A analogue output.
Supply
Analogue ground.
Analogue input
Voltage reference input.
Analogue output DAC B analogue output
Supply Positive power supply.
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at
or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical
Characteristics at the test conditions specified
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible
to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage
of this device.
CONDITION
MIN
MAX
7V
Supply voltage, VDD to AGND
Digital input voltage
-0.3V
-0.3V
VDD + 0.3V
VDD + 0.3V
Reference input voltage
Operating temperature range, TA
WM2618C
WM2618I
0°C
-40°C
70°C
85°C
Storage temperature
-65°C
150°C
260°C
Lead temperature 1.6mm (1/16 inch) soldering for 10 seconds
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply voltage
VDD
VIH
2.7
2
5.5
V
V
High-level digital input voltage
Low-level digital input voltage
Reference voltage to REFIN
Load resistance
VIL
0.8
V
VREF
RL
VDD - 1.5
V
2
kΩ
Load capacitance
CL
100
20
Serial clock rate
fSCLK
TA
Operating free-air temperature
WM2618C
0
70
°C
°C
WM2618I
-40
85
Note: Reference voltages greater than VDD/2 will cause saturation for large DAC codes.
WOLFSON MICROELECTRONICS LTD
PD Rev 1.1 October 2000
2
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
