Datasheet
! !
SLOS245E − MARCH 2000 − REVISED JANUARY 2005
5
WWW.TI.COM
electrical characteristics at specified free-air temperature, V
DD
= 1.8 V, 2.7 V (unless otherwise
noted)
dc performance
PARAMETER TEST CONDITIONS
T
A
†
MIN TYP MAX
UNIT
TLV278x
25°C 250 3000
V
IO
Input offset voltage
V
O
= V
DD
/2,
TLV278x
Full range 4500
V
V
IO
Input offset voltage
V
O
= V
DD
/2,
R
L
= 2 kΩ,
TLV278xA
25°C 250 2000
µV
R
L
= 2 k
Ω
,
R
S
= 50 Ω
TLV278xA
Full range 3000
VIO
Temperature coefficient of input offset
R
S
= 50 Ω
8
V/°C
α
VIO
Temperature coefficient of input offset
voltage
8 µV/°C
V
DD
= 1.8 V
25°C 50 76
V
IC
= 0 to V
DD
,
R = 50
V
DD
= 1.8 V
Full range 50
CMRR
Common-mode rejection ratio
V
IC
= 0 to V
DD
,
R
S
= 50 Ω
V
DD
= 2.7 V/ 3.6 V
25°C 55 80
dB
CMRR
Common-mode rejection ratio
S
V
DD
= 2.7 V/ 3.6 V
Full range 50
dB
V
IC
= 1.2 V to V
DD
,
V
DD
= 2.7 V/ 3.6 V
25°C 70 100
V
IC
= 1.2 V to V
DD
,
R
S
= 50 Ω
V
DD
= 2.7 V/ 3.6 V
Full range 70
V
DD
= 1.8 V
25°C 200 600
A
VD
Large-signal differential voltage
R
L
= 2 k
Ω
,
V
DD
= 1.8 V
Full range 50
V/mV
A
VD
Large-signal differential voltage
amplification
R
L
= 2 kΩ,
V
O(PP)
= 1 V
V
DD
= 2.7 V/ 3.6 V
25°C 200 1000
V/mV
amplification
V
O(PP)
= 1 V
V
DD
= 2.7 V/ 3.6 V
Full range 70
†
Full range is 0°C to 70°C for the C-suffix and −40°C to 125°C for the I-suffix. If not specified, full range is −40°C to 125°C.
input characteristics
PARAMETER TEST CONDITIONS
T
A
†
MIN TYP MAX
UNIT
25°C 2.5 15
I
IO
Input offset current
V = V /2,
TLV278xC Full range 100
pA
I
IO
Input offset current
V
O
= V
DD
/2,
R
L
= 2 kΩ,
TLV278xI Full range 300
pA
R
L
= 2 k
Ω
,
R
S
= 50 Ω
25°C 2.5 15
I
IB
Input bias current
R
S
= 50 Ω
TLV278xC Full range 100
pA
I
IB
Input bias current
TLV278xI Full range 300
pA
r
i(d)
Differential input resistance 25°C 1000 GΩ
C
i(c)
Common-mode input capacitance f = 1 kHz 25°C 19 pF
†
Full range is 0°C to 70°C for the C-suffix and −40°C to 125°C for the I-suffix. If not specified, full range is −40°C to 125°C.