Datasheet
The LP239 is obsolete
a
nd is no longer supplied.
SLCS004B − OCTOBER 1987 − REVISED SEPTEMBER 2004
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
LP239 LP339 LP2901
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
V
CC
Supply voltage 3 30 3 30 3 30 V
V
IC
Common-mode input voltage
V
CC
= 5 V 0 3 0 3 0 3 V
V
IC
Common-mode input voltage
V
CC
= 30 V
0 28 0 28 0 28 V
V
I
Input voltage
V
CC
= 5 V 0 3 0 3 0 3 V
V
I
Input voltage
V
CC
= 30 V
0 28 0 28 0 28 V
T
A
Operating free-air temperature −25 85 0 70 −40 85 °C
electrical characteristics, V
CC
= 5 V, T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS T
A
†
MIN TYP MAX UNIT
V
IO
Input offset voltage
V
CC
= 5 V to 30 V,
V
O
= 2 V,
25°C ±2 ±5
mV
V
IO
Input offset voltage
V
CC
= 5 V to 30 V,
RS = 0,
V
O
= 2 V,
See Note 6
Full range
±9
mV
I
IO
Input offset current
25°C ±0.5 ±5
nA
I
IO
Input offset current
Full range ±1 ±15
nA
I
IB
Input bias current
See Note 7
25°C −2.5 −25
nA
I
IB
Input bias current See Note 7
Full range −4 −40
nA
V
ICR
Common-mode input voltage
Single supply
25°C
0 to
V
CC
− 1.5
V
V
ICR
Common-mode input voltage
range
Single supply
Full range
0 to
V
CC
− 2
V
A
VD
Large-signal differential voltage
amplification
V
CC
= 15 V, RL = 15 kΩ 500 V/mV
V
I−
= 1 V,
V
O
= 2 V,
25°C 20 30
Output sink current
V
I−
= 1 V,
V
I+
= 0
V
O
= 2 V,
See Note 8
Full range 15
mA
Output sink current
V
I+
= 0
V
O
= 0.4 V 25°C 0.2 0.7
mA
Output leakage current
V
I+
= 1 V,
V
O
= 5 V 25°C 0.1 nA
Output leakage current
V
I+
= 1 V,
V
I−
= 0
V
O
= 30 V Full range 1 µA
V
ID
Differential input voltage V
I
≤ 0 (or V
CC
−
on split supplies) 36 V
I
CC
Supply current R
L
= ∞ all comparators 60 100 µA
†
Full range is −25°C to 85°C for the LP239, 0°C to 70°C for the LP339, and −40°C to 85°C for the LP2901.
NOTES: 8. V
IO
is measured over the full common-mode input voltage range.
9. Because of the p-n-p input stage, the direction of the current is out of the device. This current essentially is constant (i.e., independent
of the output state). No loading change exists on the reference or input lines as long as the common-mode input voltage range is
not exceeded.
10. The output sink current is a function of the output voltage. These devices have a bimodal output section that allows them to sink
(via a Darlington connection) large currents at output voltages greater than 1.5 V, and smaller currents at output voltages
less than 1.5 V.
switching characteristics, V
CC
= 5 V, T
A
= 25°C, R
L
connected to 5 V through 5.1 kΩ
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Large-signal response time
TTL logic swing, V
ref
= 1.4 V
1.3
µs
Response time
TTL logic swing, V
ref
= 1.4 V
8
µ
s