Datasheet

TLC7225C, TLC7225I
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range
reference inputs (all supply ranges)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
r
i
Input resistance, REFA, REFB, REFC, REFD 1.5 4 kΩ
C
i
In
p
ut ca
p
acitance REFA REFB REFC REFD
DAC loaded with all 1s 300 pF
C
i
In ut
ca acitance
,
REFA
,
REFB
,
REFC
,
REFD
DAC loaded with all 0s 65 pF
Channel-to-channel isolation
V
f
= 10 V sine wave at 10 kHz
60 dB
AC feedthrough
V
ref
=
10
V
pp
sine
wave
at
10
kHz
70 dB
dual power supply over recommended supply and reference voltage ranges, AGND = DGND = 0 V (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
I
Input current, digital V
I
= 0 or V
DD
±1 µA
I
DD
Supply current, V
DD
V
I
= V
IL
or V
IH
, No load 10 16 mA
I
SS
Supply current, V
SS
V
I
= V
IL
or V
IH
, No load 4 10 mA
Power supply sensitivity ∆V
DD
= ±5% 0.01 %/%
C
i
Input capacitance Digital inputs 8 pF
single power supply, V
DD
= 14.25 V to 15.75 V, V
SS
= AGND = DGND = 0 V, V
ref
(A, B, C, D) = 10 V
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
I
Input current, digital V
I
= 0 or V
DD
±1 µA
I
DD
Supply current, V
DD
V
I
= V
IL
or V
IH
, No load 5 13 mA
Power supply sensitivity ∆V
DD
= ±5% 0.01 %/%
C
i
Input capacitance Digital inputs 8 pF