INTERSIL ISL70218SRHMF

Rad Hard Dual 36V Precision Single-Supply, Rail-to-Rail
Output, Low-Power Operational Amplifiers
ISL70218SRH
Features
The ISL70218SRH is a dual, low-power precision amplifier
optimized for single-supply applications. This op amp features
a common mode input voltage range extending to 0.5V below
the V- rail, a rail-rail differential input voltage range, and
rail-to-rail output voltage swing, which makes it ideal for
single-supply applications where input operation at ground is
important.
• Wide Single and Dual Supply Range . . . . . . . .3V to 36V Max.
This op amp features low power, low offset voltage, and low
temperature drift, making it ideal for applications requiring
both high DC accuracy and AC performance. This amplifier is
designed to operate over a single supply range of 3V to 36V or a
split supply voltage range of +1.8V/-1.2V to ±18V. The
combination of precision and small footprint provides the user
with outstanding value and flexibility relative to similar
competitive parts.
• Operating Temperature Range. . . . . . . . . . .-55°C to +125°C
Applications for this amplifier include precision
instrumentation, data acquisition, precision power supply
controls, and industrial controls.
• Low Current Consumption . . . . . . . . . . . . . . . . . . 850µA, Typ.
• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . 40µV, Typ.
• Rail-to-Rail Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mV
• Rail-to-Rail Input Differential Voltage Range for Comparator
Applications
• Below-ground (V-) Input Capability to -0.5V.
• Low Noise Voltage . . . . . . . . . . . . . . . . . . . . . . 5.6nV/√Hz, Typ.
• Low Noise Current . . . . . . . . . . . . . . . . . . . . . . 355fA/√Hz, Typ.
• Offset Voltage Temperature Drift . . . . . . . . . . . 0.3µV/°C, Typ.
• No Phase Reversal
• Radiation Tolerance
- High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
- Low Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
- SEL/SEB LETTH (VS = ±18V) . . . . . . . . . . 86.4 MeV/mg/cm2
The ISL70218SRH is available in a 10 Ld hermetic ceramic
flatpack and operates over the extended temperature range of
-55°C to +125°C.
Applications
Related Literature
• Active Filter Blocks
• Precision Instruments
• Data Acquisition
• See AN1653, “ISL70218SRH Evaluation Board User’s
Guide”
• Power Supply Control
• Industrial Process Control
RF
IN-
10kΩ
RIN+
IN+
10kΩ
V+
ISL70218SRH
V-
+3V
to 40V
+25°C
300
+
GAIN = 10
RREF+
+125°C
200
VOUT
|VOS (µV)|
RINRSENSE
400
100kΩ
LOAD
100
0
-100
-40°C
-200 -55°C
100kΩ
-300
VREF
-400
-16
-15
-14
-13 13
14
15
16
INPUT COMMON MODE VOLTAGE (V)
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, LOW-SIDE
CURRENT SENSE AMPLIFIER
August 17, 2011
FN7871.1
1
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, VS = ±15V
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
ISL70218SRH
Pin Configurations
ISL70218SRH
(10 LD FLATPACK)
TOP VIEW
OUT_A
1
10
-IN_A
2
9
OUT_B
+IN_A
3
8
-IN_B
NC
4
7
+IN_B
V-
5
6
NC
- +
+ -
V+
Pin Descriptions
PIN NUMBER
PIN NAME
EQUIVALENT CIRCUIT
1
OUT_A
Circuit 2
Amplifier A output
2
-IN_A
Circuit 1
Amplifier A inverting input
3
+IN_A
Circuit 1
Amplifier A non-inverting input
4
NC
5
V-
6
NC
7
+IN_B
Circuit 1
Amplifier B non-inverting input
8
-IN_B
Circuit 1
Amplifier B inverting input
9
OUT_B
Circuit 2
Amplifier B output
10
V+
Circuit 1, 2, 3
IN-
DESCRIPTION
No connect
Circuit 1, 2, 3
Negative power supply
No connect
V+
V+
IN+
OUT
Positive power supply
V+
CAPACITIVELY
TRIGGERED ESD
CLAMP
V-
VCIRCUIT 1
V-
CIRCUIT 2
CIRCUIT 3
Ordering Information
ORDERING NUMBER
PART NUMBER
TEMP RANGE (°C)
PACKAGE
PKG. DWG. #
ISL70218SRHMF
ISL70218 SRHMF
-55 to +125
10 Ld Flatpack
K10.A
ISL70218SRHF/PROTO
ISL70218 SRHF /PROTO
-55 to +125
10 Ld Flatpack
K10.A
ISL70218SRHMX
-55 to +125
DIE
ISL70218SRHX/SAMPLE
-55 to +125
DIE
ISL70218SRHMEVAL1Z
Evaluation Board
NOTES:
1. These Intersil Pb-free Hermetic packaged products employ 100% Au plate - e4 termination finish, which is RoHS compliant and compatible with both
SnPb and Pb-free soldering operations.
2. For Moisture Sensitivity Level (MSL), please see device information page for ISL70218SRH. For more information on MSL, please seeTech Brief
TB363.
2
FN7871.1
August 17, 2011
ISL70218SRH
Absolute Maximum Ratings
Thermal Information
Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Maximum Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Maximum Differential Input Voltage . . . . . . . . 36V or V- - 0.5V to V+ + 0.5V
Min/Max Input Voltage . . . . . . . . . . . . . . . . . . . . 36V or V- - 0.5V to V+ + 0.5V
Max/Min Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
Output Short-Circuit Duration (1 output at a time) . . . . . . . . . . . . . . Indefinite
ESD Tolerance
Human Body Model (Tested per MIL-PRF-883 3015.7). . . . . . . . . . . 3kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 300V
Charged Device Model (Tested per CDM-22CI0ID) . . . . . . . . . . . . . . . 2kV
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
10 Ld Flatpack Package (Notes 3, 4). . . . .
130
20
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Recommended Operating Conditions
Ambient Operating Temperature Range . . . . . . . . . . . . . .-55°C to +125°C
Maximum Operating Junction Temperature . . . . . . . . . . . . . . . . . .+150°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . 3V (+1.8V/-1.2V) to 30V (±15V)
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.
NOTES:
3. θJA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
4. For θJC, the “case temp” location is the center of the package underside.
Electrical Specifications
VS ±15V, VCM = 0, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. Boldface limits apply over
the operating temperature range, -55°C to +125°C.
TYP
MAX
(Note 5)
UNIT
40
230
µV
290
µV
1.4
µV/°C
MIN
PARAMETER
VOS
DESCRIPTION
CONDITIONS
(Note 5)
Offset Voltage
TCVOS
Offset Voltage Drift
0.3
ΔVOS
Input Offset Voltage Match
44
IOS
Input Offset Current
-50
4
-75
IB
Input Bias Current
-575
280
µV
365
µV
50
nA
75
nA
-230
nA
-800
VCMIR
Common Mode Input Voltage Range
CMRR
Common-Mode Rejection Ratio
PSRR
Power Supply Rejection Ratio
Guaranteed by CMRR Test
VCM = V- to V+ -1.8V
VCM = V- to V+ -1.8V
AVOL
VOH
VOL
IS
Open-Loop Gain
nA
(V-) - 0.5
(V+) + 1.8
V
V-
(V+) - 1.8
V
100
118
dB
97
dB
VS = 3V to 40V,
VCMIR = Valid Input Voltage
105
124
dB
100
-
dB
RL = 10kΩ to ground
VO = -13V to +13V
120
130
dB
Output Voltage High,
V+ to VOUT
RL = 10kΩ
Output Voltage Low,
VOUT to V-
RL = 10kΩ
115
Supply Current/Amplifier
dB
0.85
110
mV
120
mV
70
mV
80
mV
1.1
mA
1.4
mA
IS+
Source Current Capability
10
mA
IS-
Sink Current Capability
10
mA
VSUPPLY
Supply Voltage Range
3
Guaranteed by PSRR
3
40
V
FN7871.1
August 17, 2011
ISL70218SRH
Electrical Specifications
VS ±15V, VCM = 0, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. Boldface limits apply over
the operating temperature range, -55°C to +125°C. (Continued)
MIN
PARAMETER
DESCRIPTION
CONDITIONS
(Note 5)
TYP
MAX
(Note 5)
UNIT
AC SPECIFICATIONS
GBW
Gain Bandwidth Product
ACL = 101, VOUT = 100mVP-P;
RL = 2k
enp-p
Voltage Noise
en
4
MHz
0.1Hz to 10Hz, VS = ±18V
300
nVP-P
Voltage Noise Density
f = 10Hz, VS = ±18V
8.5
nV/√Hz
en
Voltage Noise Density
f = 100Hz, VS = ±18V
5.8
nV/√Hz
en
Voltage Noise Density
f = 1kHz, VS = ±18V
5.6
nV/√Hz
en
Voltage Noise Density
f = 10kHz, VS = ±18V
5.6
nV/√Hz
in
Current Noise Density
f = 1kHz, VS = ±18V
355
fA/√Hz
Total Harmonic Distortion + Noise
1kHz, G = 1, VO = 3.5VRMS,
RL = 10kΩ
0.0003
%
THD + N
TRANSIENT RESPONSE
SR
tr, tf, Small
Signal
ts
Slew Rate
AV = 1, RL = 2kΩ, VO = 10VP-P
±1.2
V/µs
Rise Time
10% to 90% of VOUT
AV = 1, VOUT = 100mVP-P, Rf = 0Ω,
RL = 2kΩ to VCM
100
ns
Fall Time
90% to 10% of VOUT
AV = 1, VOUT = 100mVP-P, Rf = 0Ω,
RL = 2kΩ to VCM
100
ns
Settling Time to 0.01%
10V Step; 10% to VOUT
AV = 1, VOUT = 10VP-P, Rf = 0Ω
RL = 2kΩ to VCM
8.5
µs
Electrical Specifications
VS ±5V, VCM = 0, VO = 0V, TA = +25°C, unless otherwise noted. Boldface limits apply over the
operating temperature range, -55°C to +125°C.
MIN
PARAMETER
DESCRIPTION
CONDITIONS
(Note 5)
TYP
VOS
Offset Voltage
40
ΔVOS
MAX
(Note 5)
UNIT
µV
Input Offset Voltage Match
44
µV
IOS
Input Offset Current
4
nA
IB
Input Bias Current
-230
nA
VCMIR
Common Mode Input Voltage Range
Guaranteed by CMRR Test
(V-) - 0.5
(V+) + 1.8
V
V-
(V+) - 1.8
V
CMRR
Common-Mode Rejection Ratio
VCM = V- - 0.5V to V+ - 1.8
VCM = V- to V+ -1.8V
117
dB
PSRR
Power Supply Rejection Ratio
VS = 3V to 40V,
VCMIR = Valid Input Voltage
124
dB
AVOL
Open-Loop Gain
RL = 10kΩ to ground
VO = -3V to +3V
130
dB
VOH
Output Voltage High,
V+ to VOUT
RL = 10kΩ
65
mV
70
mV
Output Voltage Low,
VOUT to V-
RL = 10kΩ
38
mV
45
mV
VOL
IS
Supply Current/Amplifier
0.85
mA
IS+
Source Current Capability
8
mA
IS-
Sink Current Capability
8
mA
4
FN7871.1
August 17, 2011
ISL70218SRH
Electrical Specifications
VS ±5V, VCM = 0, VO = 0V, TA = +25°C, unless otherwise noted. Boldface limits apply over the
operating temperature range, -55°C to +125°C.
MIN
PARAMETER
DESCRIPTION
CONDITIONS
(Note 5)
TYP
MAX
(Note 5)
UNIT
AC SPECIFICATIONS
GBW
Gain Bandwidth Product
enp-p
3.2
MHz
Voltage Noise
0.1Hz to 10Hz
320
nVP-P
en
Voltage Noise Density
f = 10Hz
9
nV/√Hz
en
Voltage Noise Density
f = 100Hz
5.7
nV/√Hz
en
Voltage Noise Density
f = 1kHz
5.5
nV/√Hz
en
Voltage Noise Density
f = 10kHz
5.5
nV/√Hz
in
Current Noise Density
f = 1kHz
380
fA/√Hz
Total Harmonic Distortion + Noise
1kHz, G = 1, VO = 1.25VRMS,
RL = 10kΩ
0.0003
%
THD + N
TRANSIENT RESPONSE
SR
tr, tf, Small
Signal
ts
Slew Rate
AV = 1, RL = 2kΩ, VO = 4VP-P
±1
V/µs
Rise Time
10% to 90% of VOUT
AV = 1, VOUT = 100mVP-P , Rf = 0Ω,
RL = 2kΩ to VCM
100
ns
Fall Time
90% to 10% of VOUT
AV = 1, VOUT = 100mVP-P , Rf = 0Ω,
RL = 2kΩ to VCM
100
ns
Settling Time to 0.01%
4V Step; 10% to VOUT
AV = 1, VOUT = 4VP-P, Rf = 0Ω
RL = 2kΩ to VCM
4
µs
NOTE:
5. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
Post Radiation Characteristics VS ±15V, VCM = 0V, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. This data is typical
test data post radiation exposure at a rate of 50 to 300rad(Si)/s. This data is intended to show typical parameter shifts due to high dose radiation. These
are not limits nor are they guaranteed.
PARAMETER
DESCRIPTION
CONDITIONS
50k RAD
75k RAD
100k RAD
UNIT
VOS
Offset Voltage
35
35
35
µV
IOS
Input Offset Current
2
3
5
nA
IB
Input Bias Current
200
400
575
nA
CMRR
Common-Mode Rejection Ration
VCM = -13V to +13V
129
128
127
dB
PSRR
Power Supply Rejection Ratio
VS = ±2.25V to ±15V
130
130
130
dB
AVOL
Open-Loop Gain
VO = -13V to +13V
RL = 10kΩ to ground
131.6
131.1
131.1
dB
VOH
Output Voltage High
V+ to VOUT
RL = 10kΩ to ground
71
74
76
mV
VOL
Output Voltage Low
VOUT to V-
RL = 10kΩ to ground
54
57
59
mV
830
830
830
µA
1.24
1.23
1.22
V/µs
IS
Supply Current/Amplifier
TRANSIENT RESPONSE
SR
Slew Rate
AV = 10, RL = 2kΩ, VO = 4VP-P
5
FN7871.1
August 17, 2011
ISL70218SRH
Post Radiation Characteristics VS ±15V, VCM = 0V, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. This data is typical
test data post radiation exposure at a rate of 10mrad(Si)/s. This data is intended to show typical parameter shifts due to low dose radiation. These are
not limits nor are they guaranteed.
PARAMETER
DESCRIPTION
CONDITIONS
50k RAD
100k RAD
UNIT
21
15
10
µV
VOS
Offset Voltage
IOS
Input Offset Current
8
10
10
nA
IB
Input Bias Current
130
130
130
nA
IS
Supply Current/Amplifier
625
615
600
µA
Typical Performance Curves
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified.
100
400
90
300
80
+25°C
+125°C
200
60
VS = ±15V
50
40
|VOS (µV)|
70
VOS (µV)
20k RAD
30
100
0
-100
-40°C
-200 -55°C
20
VS = ±5V
10
0
-60
-40
-20
0
20
-300
40
60
80
-400
-16
100 120 140 160
-15
TEMPERATURE (°C)
FIGURE 3. VOS vs TEMPERATURE
-14
-13 13
14
15
FIGURE 4. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, VS = ±15V
-150
0
-50
VS = +40V
-200
-100
VS = +30V
-200
IBIAS (nA)
IBIAS (nA)
-150
-250
-300
-250
-300
VS = +3.0V
-350
-350
-400
VS = +4.5V
-450
-500
16
INPUT COMMON MODE VOLTAGE (V)
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
VS (V)
FIGURE 5. IBIAS vs VS
6
-400
-60
-40
-20
0
20
40
VS = +10V
60
80
100
120
140
TEMPERATURE (°C)
FIGURE 6. IBIAS vs TEMPERATURE vs SUPPLY
FN7871.1
August 17, 2011
ISL70218SRH
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
132
132
130
130
128
128
126
126
124
CMRR (dB)
CMRR (dB)
Typical Performance Curves
CHANNEL-A
122
120
118
116
CHANNEL-B
124
122
120
116
114
112
112
0
110
-60 -40 -20
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
135
130
125
120
115
110
105
100
-60
10 100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
PSRR+
PSRR-
1k
10k
100k
FREQUENCY (Hz)
1M
FIGURE 11. PSRR vs FREQUENCY, VS = ±15V
7
-40
-20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 10. PSRR vs TEMPERATURE, VS = ±15V
PSRR (dB)
PSRR (dB)
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
140
FIGURE 9. CMRR vs FREQUENCY, VS = ±15V
140
130
120
110
100
90
80
70
60
50
40 VS = ±15V
30 AV = 1
20 CL = 4pF
10 RL = 10k
0 VCM = 1VP-P
-10
10
100
0
FIGURE 8. CMRR vs TEMPERATURE, VS = ±5V
PSRR (dB)
CMRR (dB)
FIGURE 7. CMRR vs TEMPERATURE, VS = ±15V
140
130
120
110
100
90
80
70
60
50
40
30 VS = ±15V
20 SIMULATION
10
0
1m 0.01 0.1 1
CHANNEL-B
118
114
110
-60 -40 -20
CHANNEL-A
10M
140
130
120
110
100
90
80
70
60
50
40 VS = ±5V
30 AV = 1
20 CL = 4pF
10 RL = 10k
0 VCM = 1VP-P
-10
10
100
PSRR+
PSRR-
1k
10k
100k
FREQUENCY (Hz)
1M
10M
FIGURE 12. PSRR vs FREQUENCY, VS = ±5V
FN7871.1
August 17, 2011
ISL70218SRH
200
180
160
140
120
100
80
60
40
20
0
-20
-40
-60 VS = ±15V
-80 RL = 1MΩ
-100
1m 0.01 0.1
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
70
60
PHASE
RF = 10kΩ, RG = 10Ω
ACL = 1000
RF = 10kΩ, RG = 100Ω
50
GAIN (dB)
GAIN (dB)
Typical Performance Curves
GAIN
40
30
20
ACL = 10
RF = 10kΩ, RG = 1kΩ
10
ACL = 1
0
1
-10
100
10 100 1k 10k 100k 1M 10M100M 1G
VS = ±5V & ±15V
CL = 4pF
RL = 2k
VOUT = 100mVP-P
ACL = 100
RF = 0, RG = ∞
1k
10k
FREQUENCY (Hz)
1
1
0
0
-1
-1
-2
-3
RL = OPEN, 100k, 10k
RL = 1k
RL = 499
RL = 100
-5
VS = ±15V
CL = 4pF
-7
AV = +1
-8 VOUT = 100mVp-p
-6
-9
100
1k
RL = 49.9
10k
100k
1M
-3
-4
RL = OPEN, 100k, 10k
-6
VS = ±5V
CL = 4pF
-7 A = +1
V
-8 VOUT = 100mVp-p
1k
RL = 49.9
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 16. GAIN vs FREQUENCY vs RL, VS = ±5V
1
1
0
0
-1
-1
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
RL = 1k
RL = 499
RL = 100
-5
-9
100
10M
FIGURE 15. GAIN vs FREQUENCY vs R L, VS = ±15V
-2
-3
-4
VOUT = 10mVP-P
VS = ±5V
VOUT = 50mVP-P
CL = 4pF
-7 A = +1
V
-8 RL = INF
VOUT = 100mVP-P
-6
10M
-2
FREQUENCY (Hz)
-5
1M
FIGURE 14. FREQUENCY RESPONSE vs CLOSED LOOP GAIN
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
FIGURE 13. OPEN-LOOP GAIN, PHASE vs FREQUENCY, VS = ±15V
-4
100k
FREQUENCY (Hz)
-9
100
VOUT = 500mVP-P
VOUT = 1VP-P
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 17. GAIN vs FREQUENCY vs OUTPUT VOLTAGE
8
-2
-3
VS = ±1.5V
-4
VS = ±5V
-5
VS = ±15V
-6 CL = 4pF
R = 10k
-7 L
AV = +1
-8 VOUT = 100mVP-P
-9
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 18. GAIN vs FREQUENCY vs SUPPLY VOLTAGE
FN7871.1
August 17, 2011
ISL70218SRH
Typical Performance Curves
100
42
VS = ±15V
RL = 10k
90
38
VOH
80
70
60
50
-40
-20
0
34
32
30
28
26
VOL
22
20
-60
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 19. OUTPUT OVERHEAD VOLTAGE vs TEMPERATURE,
VS = ±15V, RL = 10k
1.0
VOH
36
24
VOL
40
-60
VS = ±5V
RL = 10k
40
VOH AND VOL (mV)
VOH AND VOL (mV)
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
-40
-20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 20. OUTPUT OVERHEAD VOLTAGE vs TEMPERATURE,
VS = ±5V, RL = 10k
1.0
VS = ±5V and ±15V
VS = ±5V and ±15V
+125°C
+25°C
0.1
VOL - V- (V)
V+ - VOH (V)
+125°C
0.01
-55°C
0.001
0.001
0.01
0.1
LOAD CURRENT (mA)
1.0
0.001
0.001
10
0.1
1.0
10
FIGURE 22. OUTPUT OVERHEAD VOLTAGE LOW vs LOAD CURRENT,
VS = ±5V and ±15V
5
14 V = ±15V
S
13 AV = 2
RF = RG = 100k
12 V = ±7.5V-DC
IN
11
-55°C
10
+75°C
-10
-11
VOH
+125°C
-40°C
-12
0°C
+125°C
+75°C
-55°C
-2
+25°C
-13
4 VS = ±5V
AV = 2
3 R = R = 100k
F
G
VIN = ±2.5V-DC
2
1
-1
VOL
VOH
0.01
LOAD CURRENT (mA)
15
VOL
0.01
-55°C
FIGURE 21. OUTPUT OVERHEAD VOLTAGE HIGH vs LOAD CURRENT,
VS = ±5V and ±15V
0°C
-40°C
-3
+25°C
-4
-14
-15
+25°C
0.1
0
2
4
6
8
10 12 14 16
I-FORCE (mA)
18
20
22
24
FIGURE 23. OUTPUT VOLTAGE SWING vs LOAD CURRENT, VS = ±15V
9
-5
0
2
4
6
8
10 12 14 16
I-FORCE (mA)
18
20
22
24
FIGURE 24. OUTPUT VOLTAGE SWING vs LOAD CURRENT, VS = ±5V
FN7871.1
August 17, 2011
ISL70218SRH
Typical Performance Curves
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
1600
ISUPPLY PER AMPLIFIER (µA)
1100
CURRENT (µA)
1400
VS = ±21V
1200
1000
VS = ±15V
800
VS = ±2.25V
600
1000
900
800
700
600
500
400
300
200
100
-40
-20
0
20
40
60
80
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42
100 120 140 160
VSUPPLY (V)
TEMPERATURE (°C)
FIGURE 25. SUPPLY CURRENT vs TEMPERATURE vs SUPPLY
VOLTAGE
100
INPUT NOISE VOLTAGE
10
10
INPUT NOISE CURRENT
1
0.1
0.1
1
10
100
1k
10k
1
0.1
100k
INPUT NOISE VOLTAGE (nV/√Hz)
100
VS = ±18V
INPUT NOISE CURRENT (fA/√Hz)
INPUT NOISE VOLTAGE (nV/√Hz)
100
FIGURE 26. SUPPLY CURRENT vs SUPPLY VOLTAGE
100
VS = ±5V
INPUT NOISE VOLTAGE
10
10
INPUT NOISE CURRENT
1
1
0.1
0.1
1
10
100
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 27. INPUT NOISE VOLTAGE (en) AND CURRENT (in) vs
FREQUENCY, VS = ±18V
500
VS = ±18V
AV = 10k
400
300
INPUT NOISE VOLTAGE (nV)
INPUT NOISE VOLTAGE (nV)
0.1
100k
10k
FIGURE 28. INPUT NOISE VOLTAGE (en) AND CURRENT (in) vs
FREQUENCY, VS = ±5V
500
200
100
0
-100
-200
-300
-400
-500
INPUT NOISE CURRENT (fA/√Hz)
400
-60
VS = ±5V
AV = 10k
400
300
200
100
0
-100
-200
-300
-400
-500
0
1
2
3
4
5
6
7
8
9
10
TIME (s)
FIGURE 29. INPUT NOISE VOLTAGE 0.1Hz TO 10Hz, VS = ±18V
10
0
1
2
3
4
5
6
7
8
9
10
TIME (s)
FIGURE 30. INPUT NOISE VOLTAGE 0.1Hz TO 10Hz, VS = ±5V
FN7871.1
August 17, 2011
ISL70218SRH
Typical Performance Curves
0.1
VS = ±15V
CL = 4pF
RL = 2k
VOUT = 10VP-P
AV = 10
+25°C
+125°C
THD + N (%)
0.01 C-WEIGHTED
22Hz TO 500kHz
0.001
-55°C
+25°C
+125°C
AV = 1
0.0001
10
100
1k
FREQUENCY (Hz)
10k
100k
100
VS = ±15V
CL = 4pF
RL = 10k
0.1 f = 1kHz
10k
100k
+125°C
C-WEIGHTED
22Hz TO 22kHz
AV = 10
-55°C
0.01
+25°C
+125°C
0.001
0
5
+125°C
+25°C
10
15
AV = 1 -55°C
20
25
30
0.0001
0
+25°C
10
5
VOUT (VP-P)
FIGURE 33. THD+N vs OUTPUT VOLTAGE (VOUT) vs TEMPERATURE,
AV = 1, 10, RL = 2k
1.2
VOUT (V)
0.8
30
0.4
0
-0.4
-2
-0.8
-4
-1.2
-1.6
-6
-2.0
-2.4
20
-55°C
25
VS = ±5V
AV = 1
RL = 2k
CL = 4pF
2.0
1.6
0
10
AV = 1
2.4
VS = ±15V
AV = 1
4
RL = 2k
CL = 4pF
2
0
+125°C
15
20
VOUT (VP-P)
FIGURE 34. THD+N vs OUTPUT VOLTAGE (VOUT) vs TEMPERATURE,
AV = 1, 10, RL = 10k
6
VOUT (V)
1k
FIGURE 32. THD+N vs FREQUENCY vs TEMPERATURE, AV = 1, 10,
RL = 10k
0.001
0.0001
AV = 1
+125°C
0.0001
10
1.0
+25°C
-55°C
+25°C
AV = 10
0.01
+125°C
0.001
C-WEIGHTED
22Hz TO 22kHz
-55°C
+25°C
0.01 C-WEIGHTED
22Hz TO 500kHz
THD + N (%)
THD + N (%)
VS = ±15V
CL = 4pF
RL = 2k
0.1 f = 1kHz
AV = 10
FREQUENCY (Hz)
FIGURE 31. THD+N vs FREQUENCY vs TEMPERATURE, AV = 1, 10,
RL = 2k
1.0
-55°C
VS = ±15V
CL = 4pF
RL = 10k
VOUT = 10VP-P
-55°C
THD + N (%)
0.1
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
30
40
50
60
TIME (µs)
70
80
90
100
FIGURE 35. LARGE SIGNAL 10V STEP RESPONSE, VS = ±15V
11
0
10
20
30
40
50
60
TIME (µs)
70
80
90
100
FIGURE 36. LARGE SIGNAL 4V STEP RESPONSE, VS = ±5V
FN7871.1
August 17, 2011
ISL70218SRH
Typical Performance Curves
100
6
VS = ±15V
AND
VS = ±5V
AV = 1
RL = 2k
CL = 4pF
60
40
20
0
-20
-40
-60
4
INPUT
3
2
1
OUTPUT
0
-1
-2
-3
-4
-80
-5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-6
2
0
1
2
TIME (ms)
TIME (µs)
12
OUTPUT
-40
-4
-80
-8
-120
80
8
40
4
-160
0
40
-200
0
4
8
12
16
20
24
TIME (µs)
28
32
36
FIGURE 39. POSITIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±15V
50
INPUT
40
OUTPUT
1
-50
0
40
-60
0
20
24
28
32
36
TIME (µs)
FIGURE 41. POSITIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±5V
12
20
24
0
-2
10
16
16
-20
2
12
12
-1
20
8
8
-10
3
4
4
0
30
0
0
-12
VS = ±15V
AV = 100
-16
RL = 10k
VIN = 100mVP-P
OVERDRIVE = 1V
-20
28
32
36
40
FIGURE 40. NEGATIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±15V
OUTPUT (V)
6
VS = ±5V
AV = 100
5
RL = 10k
VIN = 50mVP-P
OVERDRIVE = 1V 4
60
OUTPUT
TIME (µs)
INPUT (mV)
0
INPUT (mV)
INPUT (mV)
120
INPUT
OUTPUT (V)
INPUT (mV)
160
0
0
20
VS = ±15V
AV = 100
RL = 10k
16
VIN = 100mVP-P
OVERDRIVE = 1V
INPUT
4
FIGURE 38. NO PHASE REVERSAL
FIGURE 37. SMALL SIGNAL TRANSIENT RESPONSE,
VS = ±5V, ±15V
200
3
OUTPUT (V)
0
-30
OUTPUT
-40
INPUT
0
4
8
12
16
20
24
-3
-4
VS = ±5V
AV = 100
RL = 10k
-5
VIN = 50mVP-P
OVERDRIVE = 1V
-6
28
32
36
40
OUTPUT (V)
-100
VS = ±5V
VIN = ±5.9V
5
INPUT AND OUTPUT (V)
80
VOUT (V)
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
TIME (µs)
FIGURE 42. NEGATIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±5V
FN7871.1
August 17, 2011
ISL70218SRH
Typical Performance Curves
VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
100
100
VS = ±15V
VS = ±5V
AV = 10
10
AV = 10
10
AV = 100
ZOUT (Ω)
ZOUT (Ω)
AV = 100
1
1
0.10
0.10
AV = 1
AV = 1
0.01
1
10
100
1k
10k
100k
1M
0.01
10M
1
10
100
FREQUENCY (Hz)
FIGURE 43. OUTPUT IMPEDANCE vs FREQUENCY, VS = ±15V
OVERSHOOT (%)
50
60
VS = ±15V
VOUT = 100mVP-P
50
AV = 1
40
AV = 10
AV = -1
30
20
0.010
0.100
1
10
10M
AV = 1
40
AV = 10
AV = -1
30
20
0.01
LOAD CAPACITANCE (nF)
0.1
1
10
100
LOAD CAPACITANCE (nF)
FIGURE 46. OVERSHOOT vs CAPACITIVE LOAD, VS = ±5V
30
VS = ±15V
28 R = 10k
L
26
VS = ±15V
AV = 1
24
ISC (mA)
VOUT (VP-P)
1M
VS = ±5V
VOUT = 100mVP-P
0
0.001
100
FIGURE 45. OVERSHOOT vs CAPACITIVE LOAD, VS = ±15V
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
1k
100k
10
10
0
0.001
10k
FIGURE 44. OUTPUT IMPEDANCE vs FREQUENCY, V S = ±5V
OVERSHOOT (%)
60
1k
FREQUENCY (Hz)
ISC-SINK
22
20
18
16
14
ISC-SOURCE
12
10k
100k
FREQUENCY (Hz)
FIGURE 47. IMAX OUTPUT VOLTAGE vs FREQUENCY
13
1M
10
-60
-40
-20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 48. SHORT CIRCUIT CURRENT vs TEMPERATURE, VS =
±15V
FN7871.1
August 17, 2011
ISL70218SRH
Applications Information
Functional Description
The ISL70218SRH is a dual, 3.2MHz, single-supply, rail-to-rail
output amplifier with a common mode input voltage range
extending to a range of 0.5V below the V- rail. The input stage is
optimized for precision sensing of ground-referenced signals in
single-supply applications. The input stage is able to handle large
input differential voltages without phase inversion, making this
amplifier suitable for high-voltage comparator applications. The
bipolar design features high open loop gain and excellent DC
input and output temperature stability. This op amp features very
low quiescent current of 850µA, and low temperature drift. The
device is fabricated in a new precision 40V complementary
bipolar DI process and is immune from latch-up for up to a 36V
supply range.
Operating Voltage Range
The op amp is designed to operate over a single supply range of 3V
to 36V or a split supply voltage range of +1.8V/-1.2V to ±18V. The
device is fully characterized at 30V (±15V). Both DC and AC
performance remain virtually unchanged over the complete
operating voltage range. Parameter variation with operating
voltage is shown in the “Typical Performance Curves” beginning on
page 6.
The input common mode voltage to the V+ rail (V+ - 1.8V over the
full temperature range) may limit amplifier operation when
operating from split V+ and V- supplies. Figure 4 shows the
common mode input voltage range variation over temperature.
Input Stage Performance
The ISL70218SRH PNP input stage has a common mode input
range extending up to 0.5V below ground at +25°C. Full amplifier
performance is guaranteed for input voltage down to ground (V-)
over the -55°C to +125°C temperature range. For common mode
voltages down to -0.5V below ground (V-), the amplifiers are fully
functional, but performance degrades slightly over the full
temperature range. This feature provides excellent CMRR, AC
performance, and DC accuracy when amplifying low-level,
ground-referenced signals.
The input stage has a maximum input differential voltage equal
to a diode drop greater than the supply voltage and does not
contain the back-to-back input protection diodes found on many
similar amplifiers. This feature enables the device to function as
a precision comparator by maintaining very high input
impedance for high-voltage differential input comparator
voltages. The high differential input impedance also enables the
device to operate reliably in large signal pulse applications,
without the need for anti-parallel clamp diodes required on
MOSFET and most bipolar input stage op amps. Thus, input
signal distortion caused by nonlinear clamps under high slew
rate conditions is avoided.
In applications in which one or both amplifier input terminals is
at risk of exposure to voltages beyond the supply rails,
current-limiting resistors may be needed at each input terminal
(see Figure 49, RIN+, RIN-) to limit current through the
power-supply ESD diodes to 20mA.
14
V+
VINVIN+
RIN-
-
RIN+
+
RF
RL
RG
V-
FIGURE 49. INPUT ESD DIODE CURRENT LIMITING
Output Drive Capability
The bipolar rail-to-rail output stage features low saturation levels
that enable an output voltage swing to less than 15mV when the
total output load (including feedback resistance) is held below
50µA (Figures 21 and 22). With ±15V supplies, this can be
achieved by using feedback resistor values >300kΩ.
The output stage is internally current limited. Output current limit
over temperature is shown in Figures 23 and 24. The amplifiers
can withstand a short circuit to either rail as long as the power
dissipation limits are not exceeded. This applies to only one
amplifier at a time for the dual op amp. Continuous operation
under these conditions may degrade long-term reliability.
The amplifiers perform well when driving capacitive loads
(Figures 45 and 46). The unity gain, voltage follower (buffer)
configuration provides the highest bandwidth but is also the
most sensitive to ringing produced by load capacitance found in
BNC cables. Unity gain overshoot is limited to 35% at
capacitance values to 0.33nF. At gains of 10 and higher, the
device is capable of driving more than 10nF without significant
overshoot.
Output Phase Reversal
Output phase reversal is a change of polarity in the amplifier
transfer function when the input voltage exceeds the supply
voltage. The ISL70218SRH is immune to output phase reversal
out to 0.5V beyond the rail (VABS MAX) limit (Figure 38).
Single Channel Usage
The ISL70218SRH is a dual op amp. If the application requires
only one channel, the user must configure the unused channel to
prevent it from oscillating. The unused channel oscillates if the
input and output pins are floating. This results in
higher-than-expected supply currents and possible noise
injection into the channel being used. The proper way to prevent
oscillation is to short the output to the inverting input, and
ground the positive input (Figure 50).
+
FIGURE 50. PREVENTING OSCILLATIONS IN UNUSED CHANNELS
FN7871.1
August 17, 2011
ISL70218SRH
Power Dissipation
PDMAX for each amplifier can be calculated using Equation 2:
It is possible to exceed the +150°C maximum junction
temperatures under certain load and power supply conditions. It
is therefore important to calculate the maximum junction
temperature (TJMAX) for all applications to determine if power
supply voltages, load conditions, or package type need to be
modified to remain in the safe operating area. These parameters
are related using Equation 1:
V OUTMAX
PD MAX = V S × I qMAX + ( V S - V OUTMAX ) × -----------------------R
where
T JMAX = T MAX + θ JA xPD MAXTOTAL
• IqMAX = Maximum quiescent supply current of one amplifier
(EQ. 1)
(EQ. 2)
L
• PDMAX = Maximum power dissipation of one amplifier
• VS = Total supply voltage
• VOUTMAX = Maximum output voltage swing of the application
where
• PDMAXTOTAL is the sum of the maximum power dissipation of
each amplifier in the package (PDMAX)
• RL = Load resistance
• TMAX = Maximum ambient temperature
• ΘJA = Thermal resistance of the package
15
FN7871.1
August 17, 2011
ISL70218SRH
Package Characteristics
TOP METALLIZATION
Type: AlCu (99.5%/0.5%)
Thickness: 30kÅ
Weight of Packaged Device
0. 4029 grams (Typical)
BACKSIDE FINISH
Lid Characteristics
Silicon
Finish: Gold
Potential: Floating
PROCESS
PR40
Die Characteristics
ASSEMBLY RELATED INFORMATION
Die Dimensions
SUBSTRATE POTENTIAL
1565µm x 2125µm (62mils x 84mils)
Thickness: 355µm ± 25µm (14 mils ± 1 mil)
Unbiased
ADDITIONAL INFORMATION
Interface Materials
WORST CASE CURRENT DENSITY
GLASSIVATION
< 2 x 105 A/cm2
Type: Nitrox
Thickness: 15kÅ
Metallization Mask Layout
+IN_A
V-
-IN_A
OUT_A
PLACE HOLDER
+IN_B
16
-IN_B OUT_A
V+
FN7871.1
August 17, 2011
ISL70218SRH
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make
sure you have the latest revision.
DATE
REVISION
CHANGE
8/17/11
FN7871.1
Removed coming soon from parts ISL70218SRHMF AND ISL70218SRHMX AND ISL70218SRHX/SAMPLE in
Ordering Information Table.
8/9/2011
FN7871.0
Initial Release
Products
Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products
address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks.
Intersil's product families address power management and analog signal processing functions. Go to www.intersil.com/products for a
complete list of Intersil product families.
For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page on
intersil.com: ISL70218SRH
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Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted
in the quality certifications found at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
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17
FN7871.1
August 17, 2011
ISL70218SRH
Ceramic Metal Seal Flatpack Packages (Flatpack)
K10.A MIL-STD-1835 CDFP3-F10 (F-4A, CONFIGURATION B)
10 LEAD CERAMIC METAL SEAL FLATPACK PACKAGE
e
A
INCHES
A
-A-
D
-BPIN NO. 1
ID AREA
b
E1
0.004 M
H A-B S
Q
D S
S1
0.036 M
H A-B S
D S
C
E
-D-
A
-C-
-HL
E2
E3
SEATING AND
BASE PLANE
c1
L
E3
(c)
b1
M
M
(b)
SECTION A-A
MIN
MILLIMETERS
MAX
MIN
MAX
NOTES
A
0.045
0.115
1.14
2.92
-
b
0.015
0.022
0.38
0.56
-
b1
0.015
0.019
0.38
0.48
-
c
0.004
0.009
0.10
0.23
-
c1
0.004
0.006
0.10
0.15
-
D
-
0.290
-
7.37
3
E
0.240
0.260
6.10
6.60
-
E1
-
0.280
-
7.11
3
E2
0.125
-
3.18
-
-
E3
0.030
-
0.76
-
7
2
e
LEAD FINISH
BASE
METAL
SYMBOL
0.050 BSC
1.27 BSC
-
k
0.008
0.015
0.20
0.38
L
0.250
0.370
6.35
9.40
-
Q
0.026
0.045
0.66
1.14
8
S1
0.005
-
0.13
-
6
M
-
0.0015
-
0.04
-
N
10
10
Rev. 0 3/07
NOTES:
1. Index area: A notch or a pin one identification mark shall be located adjacent to pin one and shall be located within the shaded
area shown. The manufacturer’s identification shall not be used
as a pin one identification mark. Alternately, a tab (dimension k)
may be used to identify pin one.
2. If a pin one identification mark is used in addition to a tab, the limits of dimension k do not apply.
3. This dimension allows for off-center lid, meniscus, and glass
overrun.
4. Dimensions b1 and c1 apply to lead base metal only. Dimension
M applies to lead plating and finish thickness. The maximum limits of lead dimensions b and c or M shall be measured at the centroid of the finished lead surfaces, when solder dip or tin plate
lead finish is applied.
5. N is the maximum number of terminal positions.
6. Measure dimension S1 at all four corners.
7. For bottom-brazed lead packages, no organic or polymeric materials shall be molded to the bottom of the package to cover the
leads.
8. Dimension Q shall be measured at the point of exit (beyond the
meniscus) of the lead from the body. Dimension Q minimum
shall be reduced by 0.0015 inch (0.038mm) maximum when solder dip lead finish is applied.
9. Dimensioning and tolerancing per ANSI Y14.5M - 1982.
10. Controlling dimension: INCH.
18
FN7871.1
August 17, 2011