ML145050, ML145051
LANSDALE Semiconductor, Inc.
BLOCK DIAGRAM
1
2
V
V
ref
14
10-BIT RC DAC
WITH SAMPLE AND HOLD
AG
AN0
AN1
13
3
4
MUX OUT
AN2
AN3
5
AN4
AN5
AN6
6
ANALOG
MUX
SUCCESSIVE APPROXIMATION
REGISTER
7
8
PIN 20 = V
PIN 10 = V
DD
SS
AN7
AN8
9
MUX ADDRESS
REGISTER
11
12
AN9
AN10
INTERNAL
TEST
VOLTAGES
AN11
AN12
AN13
17
16
D
in
DATA REGISTER
D
out
AUTO-ZEROED
COMPARATOR
15
18
19
CS
DIGITAL CONTROL
LOGIC
SCLK
ADCLK (ML145050 ONLY)
EOC (ML145051 ONLY)
19
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
DC Supply Voltage (Referenced to V
DC Reference Voltage
Value
– 0.5 to + 6.0
to V + 0.1
Unit
V
This device contains protection circuitry to
guard against damage due to high static
voltages or electric fields. However, pre-
cautions must be taken to avoid applications
of any voltage higher than maximum rated
voltages to this high-impedance circuit. For
V
DD
)
SS
V
ref
V
V
AG
DD
– 0.1 to V
ref
V
AG
Analog Ground
V
V
SS
V
in
DC Input Voltage, Any Analog or Digital
Input
V
V
– 0.5 to
+ 0.5
V
proper operation, V and V
should be
SS
DD
in out
constrained to the range V
≤(V or V ) ≤
SS
in out
V
.
DD
Unused inputs must always be tied to an
appropriate logic voltage level (e.g., either
or V ). Unused outputs must be left
V
out
DC Output Voltage
V
V
– 0.5 to
V
SS
+ 0.5
20
DD
V
SS
open.
I
in
DC Input Current, per Pin
DC Output Current, per Pin
mA
mA
mA
C
DD
I
25
out
I
, I
DC Supply Current, V
Storage Temperature
and V
Pins
SS
50
DD SS
DD
T
stg
– 65 to 150
260
T
L
Lead Temperature, 1 mm from Case for
10 Seconds
C
* MaximumRatingsarethosevaluesbeyondwhichdamagetothedevicemayoccur.Func-
tional operation should be restricted to the Operation Ranges below..
OPERATION RANGES (Applicable to Guaranteed Limits)
Symbol
Parameter
Value
Unit
V
V
DD
DC Supply Voltage, Referenced to V
DC Reference Voltage
4.5 to 5.5
SS
V
ref
V
+ 4.0 to V
AG DD
+ 0.1
V
V
AG
Analog Ground
V – 0.1 to V – 4.0
SS ref
V
V
Analog Input Voltage (See Note)
Digital Input Voltage, Output Voltage
Ambient Operating Temperature
V
to V
V
AI
AG
ref
V , V
in out
V
SS
to V
V
DD
T
– 40 to 125
convert to zero. See V
ref
C
A
NOTE: Analog input voltages greater than V
descriptions.
convert to full scale. Input voltages less than V
and V pin
AG
ref
AG
Page 2 of 15
www.lansdale.com
Issue B
LANSDALE [ LANSDALE SEMICONDUCTOR INC. ]
