12-BIT
µ
P-COMPATIBLE
ANALOG-TO-DIGITAL CONVERTERS
TC7109
TC7109A
ELECTRICAL CHARACTERISTICS
(Cont.)
Symbol
V
REF
TC
REF
Digital
V
OH
1
Parameter
Ref Out Voltage
Ref Out Temperature
Coefficient
Output High Voltage
Test Conditions
Referenced to
25 kΩ
+
and Ref Out
Between V
25 kΩ Between V
+
and Ref Out
0°C
≤
T
A
≤
+70°C
TC7109: I
OUT
= 100
µA
TC7109A: I
OUT
= 700
µA
Pins 3–16, 18, 19, 20
I
OUT
= 1.6 mA
Pins 3–16 High Impedance
Pins 18, 19, 20 V
OUT
= V
+
–3V
Mode Input at GND
HBEN, Pin 19; LBEN, Pin 18
Pins 18–21, 26, 27
Referenced to GND
Pins 18-21, 26, 27
Referenced to GND
Pins 26, 27; V
OUT
= V
+
–3V
Pins 17, 24; V
OUT
= V
+
–3V
Pin 21; V
OUT
= GND = +3V
V
OUT
= 2.5V
V
OUT
= 2.5V
V
OUT
= 2.5V
V
OUT
= 2.5V
V
+
,
Min
– 2.4
—
Typ
– 2.8
80
Max
– 3.2
—
Unit
V
ppm/°C
2
3
4
5
6
7
3.5
4.3
—
V
V
OL
V
IH
V
IL
Output Low Voltage
Output Leakage Current
Control I/O
Pull-Up Current
Control I/O Loading
Input High Voltage
Input Low Voltage
Input Pull-Up Current
Input Pull-Down Current
Oscillator Output Current, High
Oscillator Output Current, Low
Buffered Oscillator Output
Current, High
Buffered Oscillator Output
Current, Low
Mode Input Pulse Width
—
—
—
—
2.5
—
—
—
—
—
—
—
60
0.2
±0.01
5
—
—
—
5
25
1
1
1.5
2
5
—
0.4
±1
—
50
—
1
—
—
—
—
—
—
—
V
µA
µA
pF
V
V
µA
µA
µA
mA
mA
mA
mA
nsec
t
W
HANDLING PRECAUTIONS:
These devices are CMOS and must be handled correctly to prevent damage. Package
and store only in conductive foam, anti-static tubes, or other conducting material. Use proper anti-static handling
procedures. Do not connect in circuits under "power-on" conditions, as high transients may cause permanent
damage.
8
TELCOM SEMICONDUCTOR, INC.
3-93
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
