CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTE:
1.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
V
+
= 5V, V
-
= 0V, V
CM
= 2.5V, R
L
= Open,T
A
= +25°C unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C.
Temperature data established by characterization.
CONDITIONS
MIN
(Note 2)
TYP
MAX
(Note 2)
UNIT
PARAMETER
DC SPECIFICATIONS
V
OS
V
OS
---------------
-
T
I
OS
I
B
CMIR
CMRR
PSRR
A
VOL
DESCRIPTION
Input Offset Voltage
Input Offset Voltage vs Temperature
Input Offset Current
Input Bias Current
Common-Mode Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Large Signal Voltage Gain
Guaranteed by CMRR
V
CM
= 0V to 5V
V
+
= 2.4V to 5.5V
V
O
= 0.5V to 4V, R
L
= 100kto V
CM
V
O
= 0.5V to 4V, R
L
= 1kto V
CM
-650
-750
30
0.3
650
750
µV
µV/°C
-10
-15
-35
-40
0
90
85
90
85
600
500
0
16
10
15
35
40
5
nA
nA
V
dB
dB
V/mV
V/mV
114
99
1770
140
3
70
6
10
90
110
V
OUT
Maximum Output Voltage Swing
Output low, R
L
= 100kto V
CM
Output low, R
L
= 1kto V
CM
Output high, R
L
= 100kto V
CM
Output high, R
L
= 1kto V
CM
4.99
4.98
4.92
4.89
mV
mV
mV
V
4.994
4.94
1
10
1.25
1.4
14
16
I
S,ON
I
S,OFF
Supply Current, Enabled
Supply Current, Disabled
Per Amplifier
mA
µA
FN6321 Rev 3.00
June 23, 2008
Page 2 of 16
ISL28146, ISL28246
Electrical Specifications
V
+
= 5V, V
-
= 0V, V
CM
= 2.5V, R
L
= Open,T
A
= +25°C unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C.
Temperature data established by characterization.
(Continued)
CONDITIONS
R
L
= 10to V
CM
R
L
= 10to V
CM
V
+
to V
-
2.4
2
0.8
V
EN
= V
+
V
EN
= V
-
1
16
1.5
1.6
25
30
MIN
(Note 2)
48
45
TYP
56
-54
-48
-45
5.5
MAX
(Note 2)
UNIT
mA
mA
V
V
V
µA
nA
PARAMETER
I
O
+
I
O
-
V
SUPPLY
V
ENH
V
ENL
I
ENH
I
ENL
DESCRIPTION
Short-Circuit Output Source Current
Short-Circuit Output Sink Current
Supply Operating Range
EN Pin High Level, ISL28146 Only
EN Pin Low Level, ISL28146 Only
EN Pin Input High Current, ISL28146
Only
EN Pin Input Low Current, ISL28146
Only
AC SPECIFICATIONS
GBW
Unity Gain
Bandwidth
e
N
Gain Bandwidth Product
-3dB Bandwidth
Input Noise Voltage Peak-to-Peak
Input Noise Voltage Density
i
N
CMRR
PSRR-
to 120Hz
PSRR+
to 120Hz
Input Noise Current Density
Input Common Mode Rejection Ratio
Power Supply Rejection Ratio (V
-
)
Power Supply Rejection Ratio (V
+
)
A
V
= 100, R
F
= 100kR
G
= 1k
A
V
=1, R
F
= 0R
L
= 10kV
OUT
= 10mV
P-P
f = 0.1Hz to 10Hz
f
O
= 1kHz
f
O
= 10kHz
f
O
= to 120Hz; V
CM
= 1V
P-P
, R
L
= 1k
V
+
, V
-
= ±1.2V and ±2.5V, V
SOURCE
= 1V
P-P
,
R
L
= 1k
V
+
, V
-
= ±1.2V and ±2.5V, V
SOURCE
= 1V
P-P
,
R
L
= 1k
5
13
0.4
12
0.35
-90
-88
-105
MHz
MHz
µV
P-P
nV/Hz
pA/Hz
dB
dB
dB
TRANSIENT RESPONSE
SR
t
r
, t
f
, Large
Signal
Slew Rate
Rise Time, 10% to 90%, V
OUT
Fall Time, 90% to 10%, V
OUT
Rise Time, 10% to 90%, V
OUT
Fall Time, 90% to 10%, V
OUT
t
EN
Enable to Output Turn-on Delay Time,
10% EN to 10% V
OUT
Enable to Output Turn-off Delay Time,
10% EN to 10% V
OUT
NOTE:
2. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
V
OUT
= ±1.5V, R
f
= 50k R
G
= 50kto V
CM
±1.9
0.6
0.5
65
62
5
0.3
V/µs
µs
µs
nS
nS
µs
µs
A
V
= +2
,
V
OUT
= 2V
P-P
, R
g
= R
f
= R
L
= 1kto V
CM
A
V
= +2
,
V
OUT
= 2V
P-P
, R
g
= R
f
= R
L
= 1kto V
CM
A
V
= +2
,
V
OUT
= 10mV
P-P
,
R
g
= R
f
= R
L
= 1kto V
CM
A
V
= +2
,
V
OUT
= 10mV
P-P
,
R
g
= R
f
= R
L
= 1kto V
CM
V
EN
= 5V to 0V, A
V
= +2,
R
g
= R
f
= R
L
= 1k
to
V
CM
V
EN
= 0V to 5V, A
V
= +2,
R
g
= R
f
= R
L
= 1k
to
V
CM
t
r
, t
f
, Small
Signal
FN6321 Rev 3.00
June 23, 2008
Page 3 of 16
ISL28146, ISL28246
Typical Performance Curves
V
+
= 5V, V
-
= 0V, V
CM
= 2.5V, R
L
= Open
15
NORMALIZED GAIN (dB)
10
5
0
V
+
= 5V
R
L
= 1k
C
L
= 16.3pF
-10 A
V
= +2
V
OUT
= 10mV
P-P
-15
100
1k
10k
-5
R
f
= R
g
= 1k
R
f
= R
g
= 100k
R
f
= R
g
= 10k
NORMALIZED GAIN (dB)
1
0
-1
-2
-3
-4
-5
-6
-7
-8
100k
1M
10M
100M
V
OUT
= 1V
V
OUT
= 100mV
V
OUT
= 50mV
V
OUT
= 10mV
V
+
= 5V
R
L
= 1k
C
L
= 16.3pF
A
V
= +1
V
OUT
= 10mV
P-P
100k
1M
FREQUENCY (Hz)
10M
100M
-9
10k
FREQUENCY (Hz)
FIGURE 1. GAIN vs FREQUENCY vs FEEDBACK RESISTOR
VALUES R
f
/R
g
FIGURE 2. GAIN vs FREQUENCY vs V
OUT,
R
L
= 1k
1
NORMALIZED GAIN (dB)
0
NORMALIZED GAIN (dB)
-1
-2
-3
-4
-5
-6
-7
-8
V
OUT
= 1V
V
OUT
= 100mV
V
OUT
= 50mV
V
OUT
= 10mV
V
+
= 5V
R
L
= 10k
C
L
= 16.3pF
A
V
= +1
V
OUT
= 10mV
P-P
100k
1M
FREQUENCY (Hz)
10M
100M
1
0
-1
-2
-3
-4
-5
-6
-7
-8
V
OUT
= 1V
V
OUT
= 100mV
V
OUT
= 50mV
V
OUT
= 10mV
V
+
= 5V
R
L
= 100k
C
L
= 16.3pF
A
V
= +1
V
OUT
= 10mV
P-P
100k
1M
FREQUENCY (Hz)
10M
100M
-9
10k
-9
10k
FIGURE 3. GAIN vs FREQUENCY vs V
OUT
, R
L
= 10k
FIGURE 4. GAIN vs FREQUENCY vs V
OUT
, R
L
= 100k
1
NORMALIZED GAIN (dB)
0
-1
-2
-3
-4
-5
-6
-7
-8
V
+
= 5V
C
L
= 16.3pF
A
V
= +1
V
OUT
= 10mV
P-P
100k
1M
FREQUENCY (Hz)
10M
100M
R
L
=10k
GAIN (dB)
R
L
=1k
R
L
=100k
70
60
A
V
= 1001, R
g
= 1k, R
f
= 1M
V
+
= 5V
C
L
= 16.3pF
R
L
= 10k
V
OUT
= 10mV
P-P
50 A
V
= 101, R
g
= 1k,
R
f
= 100k
40
30
20
10
0
-10
100
A
V
= 1, R
g
= INF, R
f
= 0
A
V
= 10, R
g
= 1k, R
f
= 9.09k
-9
10k
1k
10k
100k
1M
FREQUENCY (Hz)
10M
100M
FIGURE 5. GAIN vs FREQUENCY vs R
L
FIGURE 6. FREQUENCY RESPONSE vs CLOSED LOOP GAIN
FN6321 Rev 3.00
June 23, 2008
Page 4 of 16
ISL28146, ISL28246
Typical Performance Curves
V
+
= 5V, V
-
= 0V, V
CM
= 2.5V, R
L
= Open
1
NORMALIZED GAIN (dB)
-1
-2
-3
-4
-5
-6
-7
-8
R
L
= 10k
C
L
= 16.3pF
A
V
= +1
V
OUT
= 10mV
P-P
100k
1M
FREQUENCY (Hz)
10M
100M
V
+
= 2.4V
NORMALIZED GAIN (dB)
0
V
+
= 5V
(Continued)
-9
10k
8
7
6
5
4
3
2
1
0
-1
-2
-3 V
+
= 5V
-4 R
L
= 1k
-5 A = +1
V
-6
V
OUT
= 10mV
P-P
-7
-8
10k
100k
CL = 51.7pF
CL = 43.7pF
CL = 37.7pF
CL = 26.7pF
CL = 16.7pF
CL = 4.7pF
1M
FREQUENCY (Hz)
10M
100M
FIGURE 7. GAIN vs FREQUENCY vs SUPPLY VOLTAGE
FIGURE 8. GAIN vs FREQUENCY vs C
L
20
0
CMRR (dB)
-20
PSRR (dB)
-40
-60
-80
-100
10
V
+
= 2.4V, 5V
R
L
= 1k
C
L
= 16.3pF
A
V
= +1
V
CM
= 1V
P-P
100
1k
10k
100k
FREQUENCY (Hz)
1M
10M
20
0
-20
-40
-60
-80
-100
-120
10
100
1k
10k
100k
FREQUENCY (Hz)
1M
10M
V
+
, V
-
=
±
1.2V
R
L
= 1k
C
L
= 16.3pF
A
V
= +1
V
SOURCE
= 1V
P-P
PSRR-
PSRR+
FIGURE 9. CMRR vs FREQUENCY, V
+
= 2.4V and 5V
FIGURE 10. PSRR vs FREQUENCY, V
+
, V
-
=
±1.2V
20
INPUT VOLTAGE NOISE (nV/Hz)
0
-20
PSRR (dB)
-40
-60
-80
-100
-120
10
100
1k
10k
100k
FREQUENCY (Hz)
1M
10M
V
+
, V
-
= ±2.5V
R
L
= 1k
C
L
= 16.3pF
A
V
= +1
V
SOURCE
= 1V
P-P
100
V
+
= 5V
R
L
= 1k
C
L
= 16.3pF
A
V
= +1
PSRR-
PSRR+
10
1
10
100
1k
FREQUENCY (Hz)
10k
100k
FIGURE 11. PSRR vs FREQUENCY, V, V
+
, V
-
=
±2.5V
FIGURE 12. INPUT VOLTAGE NOISE DENSITY vs FREQUENCY
单片机
