Datasheet

LM611
SNOSC08C –MAY 1998–REVISED MARCH 2013 www.ti.com
Electrical Characteristics
(1)
(continued)
These specifications apply for V
−
= GND = 0V, V
+
= 5V, V
CM
= V
OUT
= 2.5V, I
R
= 100 μA, FEEDBACK pin shorted to GND,
unless otherwise specified. Limits in standard typeface are for T
J
= 25°C; limits in boldface type apply over the Operating
Temperature Range.
Symbol Parameter Conditions Typical
(2)
LM611AM LM611M Units
LM611AI LM611BI
Limits
(3)
LM611I
LM611C
Limits
(3)
I
SINK
Output Sink V
OUT
= 1.6V, V
+IN
= 0V, 17 14 13 mA min
Current V
−IN
= 0.3V 9 8 8 mA min
I
SHORT
Short Circuit Current V
OUT
= 0V, V
+IN
= 3V, 30 50 50 mA max
V
−IN
= 2V, Source 40 60 60 mA max
V
OUT
= 5V, V
+IN
= 2V, 30 60 70 mA max
V
−IN
= 3V, Sink 32 80 90 mA max
VOLTAGE REFERENCE
V
R
Reference Voltage See
(5)
1.244 1.2365 1.2191 V min
1.2515 1.2689 V max
(±0.6%) (±2.0%)
ΔV
R
Average Temperature See
(6)
PPM/°C
10 80 150
ΔT
J
Drift max
ΔV
R
Hysteresis Hyst = (Vro′ − Vro)/ΔT
J
(7)
3.2 μV/°C
ΔT
J
ΔV
R
V
R
Change V
R(100 μA)
− V
R(17 μA)
0.05 1 1 mV max
ΔI
R
with Current 0.1 1.1 1.1 mV max
V
R(10 mA)
− V
R(100 μA)
(8)
1.5 5 5 mV max
2.0 5.5 5.5 mV max
R Resistance ΔV
R(10→0.1 mA)
/9.9 mA 0.2 0.56 0.56 Ω max
ΔV
R(100→17 μA)
/83 μA 0.6 13 13 Ω max
ΔV
R
V
R
Change with V
R(Vro = Vr)
− V
R(Vro = 6.3V)
2.5 7 7 mV max
V
RO
High V
RO
(5.06V between Anode and 2.8 10 10 mV max
FEEDBACK)
ΔV
R
V
R
Change with V
R(V+ = 5V)
− V
R(V+ = 36V)
0.1 1.2 1.2 mV max
ΔV+ V
+
Change (V
+
= 32V for LM611C) 0.1 1.3 1.3 mV max
V
R(V+ = 5V)
− V
R(V+ = 3V)
0.01 1 1 mV max
0.01 1.5 1.5 mV max
ΔV
R
V
R
Change with V
+
= V
+
max, ΔV
R
= V
R
0.7 1.5 1.6 mV max
ΔV
ANODE
V
ANODE
Change (@ V
ANODE
= V
−
= GND) − V
R
3.3 3.0 3.0 mV max
(@ V
ANODE
= V
+
− 1.0V)
I
FB
FEEDBACK Bias I
FB
; V
ANODE
≤ V
FB
≤ 5.06V 22 35 50 nA max
Current 29 40 55 nA max
e
n
V
R
Noise 10 Hz to 10,000 Hz, V
RO
= V
R
30 μV
RMS
(5) V
R
is the cathode-feedback voltage, nominally 1.244V.
(6) Average reference drift is calculated from the measurement of the reference voltage at 25°C and at the temperature extremes. The drift,
in ppm/°C, is 10
6
•ΔV
R
/(V
R[25°C]
•ΔT
J
), where ΔV
R
is the lowest value subtracted from the highest, V
R[25°C]
is the value at 25°C, and ΔT
J
is
the temperature range. This parameter is ensured by design and sample testing.
(7) Hysteresis is the change in V
R
caused by a change in T
J
, after the reference has been “dehysterized”. To dehysterize the reference; that
is minimize the hysteresis to the typical value, its junction temperature should be cycled in the following pattern, spiraling in toward
25°C: 25°C, 85°C, −40°C, 70°C, 0°C, 25°C.
(8) Low contact resistance is required for accurate measurement.
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