WM2625
Production Data
PIN CONFIGURATION
VDD
DIN
SCLK
NCS
1
2
3
4
8
7
6
5
OUTB
REF
OUTA
GND
PIN DESCRIPTION
PIN NO
NAME
DIN
TYPE
Digital input
Digital input
Digital input
Digital input
Supply
DESCRIPTION
1
2
3
4
5
6
7
8
Serial data input
Serial clock input
SCLK
NCS
OUTA
GND
REF
Chip select. This pin is active low.
DAC A analogue voltage output
Ground
Analogue input
Voltage reference input
OUT
VDD
Analogue output DAC B analogue voltage 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 GND
Digital input voltage
-0.3V
-0.3V
VDD + 0.3V
VDD + 0.3V
Reference input voltage
Operating temperature range, TA
WM2625CD
WM2625ID
0°C
-40°C
70°C
85°C
Storage temperature
-65°C
150°C
260°C
Soldering lead temperature, 1.6mm (1/16 inch) from package body for
10 seconds
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply voltage
VDD
2.7
5.5
V
High-level digital input voltage
Low-level digital input voltage
Reference voltage to REF pin
Load resistance
VIH
VIL
VDD = 2.7V to 5.5V
VDD = 2.7V to 5.5V
See Note
2
V
V
0.8
VREF
RL
GND
2
VDD - 1.5
V
kΩ
pF
Load capacitance
CL
100
20
Serial clock frequency
fSCLK
MHz
Operating free-air temperature
TA
WM2625CD
0
70
°C
°C
WM2625ID
-40
85
Note: Reference input voltages greater than VDD/2 will cause clipping for large DAC codes.
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 April 2001
2
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
