ISL28238 Datasheet PDF - Intersil Corporation

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ISL28238
Intersil Corporation

Part Number ISL28238
Description (ISL28138 / ISL28238) Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps
Page 16 Pages


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®
Data Sheet
ISL28138, ISL28238
February 19, 2008
FN6336.2
4.5MHz, Single and Dual Precision
Rail-to-Rail Input-Output (RRIO) Op Amps
www.wdatiatshheVete4ur.ycomLow Input Bias Current
The ISL28138 and ISL28238 are 4.5MHz low-power single
and dual operational amplifiers. The parts are optimized for
single supply operation from 2.4V to 5.5V, allowing operation
from one lithium cell or two Ni-Cd batteries.
The parts feature an Input Range Enhancement Circuit
(IREC) which enables them to maintain CMRR performance
for input voltages greater than the positive supply. The input
signal is capable of swinging 0.25V above the positive
supply and to 100mV below the negative supply with only a
slight degradation of the CMRR performance. The output
operation is rail-to-rail.
The parts draw minimal supply current (900µA per amplifier)
while meeting excellent DC accuracy, AC performance,
noise and output drive specifications. The ISL28138 features
an enable pin that can be used to turn the device off and
reduce the supply current to less than 20µA. Operation is
guaranteed over -40°C to +125°C temperature range.
Ordering Information
PART NUMBER
PART
PACKAGE
(Note)
MARKING (Pb-free)
ISL28138FHZ-T7* GABR
6 Ld SOT-23
ISL28138FHZ-T7A* GABR
6 Ld SOT-23
ISL28138FBZ
28138 FBZ 8 Ld SOIC
PKG. DWG. #
MDP0038
MDP0038
MDP0027
ISL28138FBZ-T7* 28138 FBZ 8 Ld SOIC
MDP0027
Coming Soon
ISL28238FBZ
28238 FBZ 8 Ld SOIC
MDP0027
Coming Soon
28238 FBZ 8 Ld SOIC
ISL28238FBZ-T7*
MDP0027
Coming Soon
ISL28238FUZ
8238Z
8 Ld MSOP MDP0043
Coming Soon
8238Z
ISL28238FUZ-T7*
8 Ld MSOP MDP0043
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets; molding compounds/die attach
materials and 100% matte tin plate PLUS ANNEAL - e3 termination
finish, which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.
Features
• 4.5MHz gain bandwidth product
• 900µA supply current (per amplifier)
• 300µV maximum offset voltage
• 1pA typical input bias current
• Down to 2.4V single supply voltage range
• Rail-to-rail input and output
• Output sources and sinks 60mA load current
• Enable pin (ISL28138)
• -40°C to +125°C operation
• Pb-free (RoHS compliant)
Applications
• Low-end audio
• 4mA to 20mA current loops
• Medical devices
• Sensor amplifiers
• ADC buffers
• DAC output amplifiers
Pinouts
ISL28138
(6 LD SOT-23)
TOP VIEW
OUT 1
6 V+
V- 2
5 EN
+-
IN+ 3
4 IN-
ISL28138
(8 LD SO)
TOP VIEW
NC 1
8 EN
IN- 2
IN+ 3
-
+
7 V+
6 OUT
V- 4
5 NC
ISL28238
(8 LD SO)
TOP VIEW
OUT_A 1
8 V+
ISL28238
(8 LD MSOP)
TOP VIEW
OUT_A 1
8 V+
IN-_A 2
IN+_A 3
V- 4
-+
+-
7 OUT_B IN-_A 2
6 IN-_B IN+_A 3
5 IN+_B
V- 4
-+
+-
7 OUT_B
6 IN-_B
5 IN+_B
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2007, 2008. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.



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ISL28138, ISL28238
Absolute Maximum Ratings (TA = +25°C)
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.75V
Supply Turn On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . 1V/µs
Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V- - 0.5V to V+ + 0.5V
ESD Tolerance
www.daHMtauasmchheaiennte4BuMo.dcoyodmeMl o. d. .e.l
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. .3kV
.300V
Thermal Information
Thermal Resistance
θJA (°C/W)
6 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . .
230
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . .
110
8 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . .
115
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . .Indefinite
Ambient Operating Temperature Range . . . . . . . . .-40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . +125°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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.
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: TJ = TC = TA
Electrical Specifications
V+ = 5V, V- = 0V,VCM = 2.5V, RL = Open, TA = +25°C unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C. Temperature data
established by characterization.
PARAMETER
DESCRIPTION
CONDITIONS
MIN MAX
(Note 1) TYP (Note 1) UNIT
VOS
Input Offset Voltage
8 Ld SOIC
-300
±6
300
µV
-650
650
6 Ld SOT-23
-550
±6
550
µV
-750
750
-Δ----V----O----S--
ΔT
Input Offset Voltage vs Temperature
8 Ld SOIC
0.6 µV/°C
IOS
IB
CMIR
Input Offset Current
Input Bias Current
Common-Mode Voltage Range
TA = -40°C to +85°C
TA = -40°C to +85°C
Guaranteed by CMRR
-35 ±5 35 pA
-80 80
-30 ±1 30 pA
-80 80
0 5V
CMRR
Common-Mode Rejection Ratio
VCM = 0V to 5V
75 98
70
dB
PSRR
Power Supply Rejection Ratio
V+ = 2.4V to 5.5V
80 98
75
dB
AVOL
Large Signal Voltage Gain
VO = 0.5V to 4.5V, RL = 100kΩ to VCM
200 580
150
V/mV
VOUT
Maximum Output Voltage Swing
VO = 0.5V to 4.5V, RL = 1kΩ to VCM
Output low, RL = 100kΩ to VCM
50 V/mV
3 6 mV
8
Output low, RL = 1kΩ to VCM
50 70 mV
110
Output high, RL = 100kΩ to VCM
4.994 4.998
4.99
V
Output high, RL = 1kΩ to VCM
4.93 4.95
4.89
V
IS,ON
Supply Current, Enabled
0.7 0.9 1.1
0.4 1.4
mA
IS,OFF
Supply Current, Disabled (ISL28138)
10 14
16
µA
2 FN6336.2
February 19, 2008



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ISL28138, ISL28238
Electrical Specifications
V+ = 5V, V- = 0V,VCM = 2.5V, RL = Open, TA = +25°C unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C. Temperature data
established by characterization. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN MAX
(Note 1) TYP (Note 1) UNIT
IO+ Short-Circuit Output Source Current
www.dIaOt-asheet4u.com Short-Circuit Output Sink Current
RL = 10Ω
RL = 10Ω
48 75
45
50 68
45
mA
mA
VSUPPLY
VENH
VENL
IENH
Supply Operating Range
EN Pin High Level (ISL28138)
EN Pin Low Level(ISL28138)
EN Pin Input High Curren (ISL28138)
V+ to V-, Guararteed by PSRR
VEN = V+
2.4 5.5 V
2V
0.8 V
1 1.5 µA
1.6
IENL
EN Pin Input Low Current (ISL28138)
VEN = V-
12 25
30
nA
AC SPECIFICATONS
GBW
Gain Bandwidth Product
Unity Gain
Bandwidth
-3dB Bandwidth
eN Input Noise Voltage Peak-to-Peak
Input Noise Voltage Density
iN Input Noise Current Density
CMRR @ 60Hz Input Common Mode Rejection Ratio
PSRR- @
120Hz
Power Supply Rejection Ratio (V-)
PSRR+ @
120Hz
Power Supply Rejection Ratio (V+)
TRANSIENT RESPONSE
AV = 100, RF = 100kΩ, RG = 1kΩ,
RL = 10kΩ to VCM
AV =1, RF = 0Ω, VOUT = 10mVP-P,
RL = 10kΩ to VCM
f = 0.1Hz to 10Hz
fO = 1kHz
fO = 1kHz
VCM = 1VP-P, RL = 10kΩ to VCM
V+, V- = ±1.2V and ±2.5V,
VSOURCE = 1VP-P, RL = 10kΩ to VCM
V+, V- = ±1.2V and ±2.5V
VSOURCE = 1VP-P, RL = 10kΩ to VCM
4.5
13
2
26
0.12
85
-82
-100
MHz
MHz
µVP-P
nV/Hz
pA/Hz
dB
dB
dB
SR Slew Rate
±4.8 V/µs
tr, tf, Large
Signal
Rise Time, 10% to 90%, VOUT
AV = +2, VOUT = 3VP-P, RG = RF = 10kΩ
RL = 10kΩ to VCM
530
Fall Time, 90% to 10%, VOUT
AV = +2, VOUT = 3VP-P, RG = RF = 10kΩ
RL = 10kΩ to VCM
530
tr, tf, Small
Signal
Rise Time, 10% to 90%, VOUT
AV = +2, VOUT = 10mVP-P,
RG = RF = RL = 10kΩ to VCM
50
Fall Time, 90% to 10%, VOUT
AV = +2, VOUT = 10mVP-P,
RG = RF = RL = 10kΩ to VCM
50
tEN Enable to Output Turn-on Delay Time, 10% VEN = 5V to 0V, AV = +2,
EN to 10% VOUT, (ISL28138)
RG = RF = RL = 1k to VCM
5
Enable to Output Turn-off Delay Time, 10% VEN = 0V to 5V, AV = +2,
EN to 10% VOUT, (ISL28138)
RG = RF = RL = 1k to VCM
0.2
NOTE:
1. Parts are 100% tested at +25°C. Temperature limits established by characterization and are not production tested.
ns
ns
ns
ns
µs
µs
3 FN6336.2
February 19, 2008



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ISL28138, ISL28238
Typical Performance Curves V+ = 5V, V- = 0V,VCM = 2.5V, RL = Open, unless otherwise specified.
15
10
5
Rf = Rg = 100k
Rf = Rg = 10k
www.datashe0et4u.com
V+ = 5V
-5 RL = 1k
CL = 16.3pF
-10 AV = +2
VOUT = 10mVP-P
-15
100 1k 10k
Rf = Rg = 1k
100k
1M
FREQUENCY (Hz)
10M 100M
FIGURE 1. GAIN vs FREQUENCY vs FEEDBACK RESISTOR
VALUES Rf/Rg
1
0
-1
-2
-3
-4
-5
-6 V+ = 5V
-7 RL = 1k
-8 CL = 16.3pF
-9 AV = +1
1k 10k
VOUT = 100mV
VOUT = 50mV
VOUT = 10mV
VOUT = 1V
100k
1M
FREQUENCY (Hz)
10M
100M
FIGURE 2. GAIN vs FREQUENCY vs VOUT, RL = 1k
1
0
-1 VOUT = 100mV
-2 VOUT = 50mV
-3 VOUT = 10mV
-4 VOUT = 1V
-5
-6 V+ = 5V
-7 RL = 10k
-8 CL = 16.3pF
-9 AV = +1
1k
10k 100k
1M
10M
100M
FREQUENCY (Hz)
FIGURE 3. GAIN vs FREQUENCY vs VOUT, RL = 10k
1
0
-1 VOUT = 100mV
-2 VOUT = 50mV
-3 VOUT = 10mV
-4 VOUT = 1V
-5
-6 V+ = 5V
-7 RL = 100k
-8 CL = 16.3pF
AV = +1
-9
1k
10k 100k
1M
10M
100M
FREQUENCY (Hz)
FIGURE 4. GAIN vs FREQUENCY vs VOUT, RL = 100k
1
RL = 1k
0
-1
RL = 10k
-2
-3 RL = 100k
-4
-5
-6 V+ = 5V
-7 VOUT = 10mVP-P
-8 CL = 16.3pF
-9 AV = +1
1k 10k 100k 1M 10M
FREQUENCY (Hz)
FIGURE 5. GAIN vs FREQUENCY vs RL
100M
70
AV = 1001
60
50
AV = 101
40
30
AV = 10
20
10
AV = 1
0
AV = 1, Rg = INF, Rf = 0
AV = 10, Rg = 1k, Rf = 9.09k
AV = 101, Rg = 1k, Rf = 100k
AV = 1001, Rg = 1k, Rf = 1M
V+ = 5V
CL = 16.3pF
RL = 10k
VOUT = 10mVP-P
-10
100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
FIGURE 6. FREQUENCY RESPONSE vs CLOSED LOOP GAIN
4 FN6336.2
February 19, 2008



ISL28238 datasheet pdf
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