Datasheet

TLC7225C, TLC7225I
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
V
DD
0 V
V
DD
0 V
V
DD
0 V
Data In
Address
WR
t
h(AW)
t
w1
t
su(AW)
V
DD
0 V
Data
Valid
LDAC
t
w2
t
su(DW)
t
h(DW)
NOTES: A. t
r
= t
f
= 20 ns over V
DD
range.
B. The timing-measurement reference level is equal to V
IH
+ V
IL
divided by 2.
C. If LDAC is activated prior to the rising edge of WR, then it must remain low for at least t
w2
after WR
goes high.
Figure 1. Write-Cycle Voltage Waveforms
TYPICAL CHARACTERISTICS
Figure 2
– Output Current – mA
OUTPUT CURRENT
vs
OUTPUT VOLTAGE
200
150
100
50
0
–0.1
–0.2
–0.3
–0.4
–2 –10 1 2
V
O
– Output Voltage – V
I
O
Source Current
Short-Circuit
Limiting
Sinking
Current Source
T
A
= 25°C
V
SS
= –5 V
DB0–DB7 = 0 V
V
DD
= 15 V
200
100
600
0
0123456
400
300
500
OUTPUT CURRENT (SINK)
vs
OUTPUT VOLTAGE
700
78910
T
A
= 25°C
V
DD
= 15 V
V
SS
= – 5 V
V
SS
= 0
I
O
Aµ
V
O
– Output Voltage – V
– Output Current (Sink) –
Figure 3