LINEAR TECHNOLOGY LTC6084, LTC6085 Technical data
LTC6084/LTC6085
Dual/Quad 1.5MHz,
Rail-to-Rail, CMOS
Amplifi ers
FEATURES
n
Low Offset Voltage: 750μV Maximum
n
Low Offset Drift: 5μV/°C Maximum
n
Low Input Bias Current:
1pA (Typical at 25°C)
40pA (≤85°C)
n
Rail-to-Rail Inputs and Outputs
n
2.5V to 5.5V Operation Voltage
n
Gain Bandwidth Product: 1.5MHz
n
CMRR: 70dB Minimum
n
PSRR: 94dB Minimum
n
Supply Current: 110µA per Amplifi er
n
Shutdown Current: 1.1µA per Amplifi er
n
Available in 8-Lead MSOP and 10-Lead DFN
Packages (LTC6084) and 16-Lead SSOP and DFN
Packages (LTC6085)
APPLICATIONS
n
Portable Test Equipment
n
Medical Equipment
n
Consumer Electronics
n
Data Acquisition
DESCRIPTION
The LTC®6084/LTC6085 are dual/quad, low cost, low offset,
rail-to-rail input/output, unity-gain stable CMOS operational
amplifi ers that feature 1pA of input bias current.
A 1.5MHz gain bandwidth, and 0.5V/s slew rate, along
with the wide supply range and a low 0.75mV offset, make
the LTC6084/LTC6085 useful in an extensive variety of applications from data acquisition to medical equipment and
consumer electronics. The 110A supply current and the
shutdown mode are ideal for signal processing applications
which demand performance with minimal power.
The LTC6084/LTC6085 have an output stage which swings
within 5mV of either supply rail to maximize signal dynamic
range in low supply applications. The input common
mode range includes the entire supply voltage. These op
amps are specifi ed on power supply voltages of 2.5V and
5V from –40°C to 125°C. The dual amplifi er LTC6084 is
available in 8-lead MSOP and 10-lead DFN packages. The
quad amplifi er LTC6085 is available in 16-lead SSOP and
DFN packages.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Shock Sensor Amplifi er
20M
20M
2k *
100k
3V
100k
*SHOCK SENSOR MURATA ERIE PKGS-OOMX1
www.murata.com
0.22µF
470pF
–
LTC6084
+
7Hz TO 5kHz
3V
1/2
200k
V
60845 TA01
= 120mV/g
OUT
Input Bias Current
vs Common Mode Voltage
10000
VS = 5V
1000
100
10
1
INPUT BIAS CURRENT (pA)
0.1
0.01
0 0.5 1 4.5 541.5 2 2.5 3 3.5
COMMON MODE VOLTAGE (V)
TA = 125°C
TA = 85°CTA = 85°C
TA = 25°C
60845 TA01b
60845fa
1
LTC6084/LTC6085
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V+ to V–) ...................................6V
–
Input Voltage ......................................................V
to V
Input Current ........................................................±10mA
–
SHDNA/SHDNB Voltage .....................................V
to V
Output Short-Circuit Duration (Note 2) ............ Indefi nite
Operating Temperature Range (Note 3)
LTC6084C/LTC6085C ...........................–40°C to 85°C
LTC6084H/LTC6085H .........................–40°C to 125°C
PIN CONFIGURATION
TOP VIEW
OUTA
1
–INA
+INA
–
2
+
A
3
–
V
4
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
= 150°C, θJA = 200°C/W
JMAX
+
8
V
7
OUTB
–
6
–INB
+
B
5
+INB
Specifi ed Temperature Range (Note 4)
+
LTC6084C/LTC6085C ...............................0°C to 70°C
LTC6084H/LTC6085H ........................... –40°C to 125°
+
Junction Temperature ........................................... 150°C
Storage Temperature Range ...................–65°C to 125°C
Lead Temperature (Soldering, 10 sec)
MS8, GN Only ................................................... 300°C
TOP VIEW
+
10
OUTA
1
–INA
+INA
SHDNA
10-LEAD (3mm × 3mm) PLASTIC DFN
EXPOSED PAD (PIN 11) IS V
–
2
+
A
3
–
4
V
5
DD PACKAGE
T
= 150°C, θJA = 43°C/W
JMAX
11
–
, MUST BE SOLDERED TO PCB
V
OUTB
9
–
–INB
8
+
B
7
+INB
6
SHDNB
TOP VIEW
1
OUTA
–
2
–INA
+INA
V
+INB
–INB
OUTB
NC
16-LEAD PLASTIC SSOP NARROW
+
A
3
+
4
5
+
BC
–
6
7
8
GN PACKAGE
T
= 150°C, θJA = 110°C/W
JMAX
16
–
15
+
D
14
13
12
+
–
11
10
9
OUTD
–IND
+IND
–
V
+INC
–INC
OUTC
NC
OUTA
–INA
+INA
+INB
–INB
OUTB
NC
16-LEAD (5mm × 3mm) PLASTIC DFN
EXPOSED PAD (PIN 17) IS V
TOP VIEW
1
–
2
+
A
3
+
4
V
5
+
BC
–
6
7
8
DHC PACKAGE
T
= 150°C, θJA = 43°C/W
JMAX
16
OUTD
–
15
–IND
+
D
14
+IND
–
13
17
–
, MUST BE SOLDERED TO PCB
V
12
+INC
+
–
11
–INC
10
OUTC
9
NC
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LTC6084CMS8#PBF LTC6084CMS8#TRPBF LTDNG 8-Lead Plastic MSOP 0°C to 70°C
LTC6084HMS8#PBF LTC6084HMS8#TRPBF LTDNG 8-Lead Plastic MSOP –40°C to 125°C
LTC6084CDD#PBF LTC6084CDD#TRPBF LDNH
LTC6084HDD#PBF LTC6084HDD#TRPBF LDNH
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
0°C to 70°C
–40°C to 125°C
2
60845fa
LTC6084/LTC6085
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LTC6085CGN#PBF LTC6085CGN#TRPBF 6085 16-Lead Plastic SSOP 0°C to 70°C
LTC6085HGN#PBF LTC6085HGN#TRPBF 6085 16-Lead Plastic SSOP –40°C to 125°C
LTC6085CDHC#PBF LTC6085CDHC#TRPBF 6085
LTC6085HDHC#PBF LTC6085HDHC#TRPBF 6085
16-Lead (5mm × 3mm) Plastic DFN
16-Lead (5mm × 3mm) Plastic DFN
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at TA = 25°C. Test conditions are V+ = 2.5V, V– = 0V, VCM = 0.5V unless otherwise noted.
C SUFFIX H SUFFIX
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
ΔV
I
OS
OS
B
Offset Voltage (Note 5) LTC6084MS8, LTC6085GN
Input Offset Voltage Drift
/ΔT
(Note 6)
Input Bias Current
(Notes 5, 7)
I
OS
Input Offset Current
(Notes 5, 7)
e
n
Input Noise Voltage
Density
Input Noise Voltage 0.1Hz to 10Hz 3 3 µV
i
n
Input Noise Current
Density (Note 8)
Input Common Mode
Range
C
IN
Input Capacitance
Differential Mode
Common Mode
CMRR Common Mode Rejection
Ratio
PSRR Power Supply Rejection
Ratio
V
A
OUT
VOL
Output Voltage, High,
(Referred to V
Output Voltage, Low,
(Referred to V
+
)
–
)
Large-Signal Voltage Gain R
LTC6084DD, LTC6085DHC
LTC6084MS8, LTC6085GN
LTC6084DD, LTC6085DHC
Guaranteed by 5V Test
Guaranteed by 5V Test
f = 1kHz
f = 10kHz
f = 100kHz
0 ≤ V
≤ 2.5V
CM
VS = 2.5V to 5.5V
No Load
I
= 1mA
SOURCE
I
= 5mA
SOURCE
No Load
I
= 1mA
SINK
I
= 5mA
SINK
= 10k, 0.4V ≤ V
LOAD
OUT
≤ 2.1V
l
l
l
l
l
l
V
64
l
63
94
l
91
l
l
l
l
l
l
400
l
200
300
300
750
1100
900
1350
25 25
1
40
0.5
30
31
27
0.56 0.56 fA/√Hz
–
+
V
5
9
80 64
115 94
0.5
39
220
0.5
36
200
5
85
460
5
85
460
2000 400
0°C to 70°C
–40°C to 125°C
300
300
1
0.5
31
27
–
V
5
9
80 dB
61
115 dB
89
0.5
39
220
0.5
36
200
2000 V/mV
150
750
1100
1100
1600
750
150
+
V
10
100
10
100
µV
µV
µV
µV
µV/°C
pA
pA
pA
pA
nV/√Hz
nV/√Hz
P-P
pF
pF
dB
dB
mV
mV
mV
mV
mV
mV
V/mV
V
60845fa
3
LTC6084/LTC6085
The l denotes the specifi cations which apply over the full operating
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
I
SC
Output Short-Circuit
Current
SR Slew Rate AV = 1 0.5 0.5 V/µs
GBW Gain Bandwidth Product
(f
= 10kHz)
TEST
Φ
0
t
S
I
S
Phase Margin RL = 10k, CL = 150pF, AV = 1 45 45 Deg
Settling Time 0.1% V
Supply Current
(Per Amplifi er)
Shutdown Current
(Per Amplifi er)
V
S
Supply Voltage Range Guaranteed by the PSRR Test
Channel Separation f
Shutdown Logic SHDNx High
t
t
ON
OFF
Turn On Time V
Turn Off Time V
Leakage of SHDN Pin V
Source and Sink
= 50k, VCM = 1.25V
R
LOAD
= 1V, AV = 1 6 6 µs
STEP
No Load
Shutdown, V
= 10kHz –120 –120 dB
S
SHDNx Low
= 0.5V to 1.8V 7 7 µs
SHDNx
= 1.8V to 0.5V 1 1 µs
SHDNx
= 0V
SHDNx
= 25°C. Test conditions are V+ = 2.5V, V– = 0V, VCM = 0.5V unless otherwise noted.
A
C SUFFIX H SUFFIX
SHDNx
≤ 0.5V
7.7
l
6
0.9
l
0.7
l
l
l
2.5 5.5 2.5 5.5 V
1.8
12.5 7.7
12.5 mA
4.5
1.5 0.9
1.5 MHz
0.6
110 130
110 130
140
0.2 0.3 0.2 0.5 µA
1.8
0.5
l
0.2 0.3 0.2 0.5 µA
145
0.5
mA
µA
µA
V
V
The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. Test
conditions are V+ = 5V, V– = 0V, VCM = 0.5V unless otherwise noted.
C SUFFIX H SUFFIX
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
ΔV
I
I
e
i
C
B
OS
n
OS
Offset Voltage (Note 5) LTC6084MS8, LTC6085GN
LTC6084DD, LTC6085DHC
l
l
l
OS
Input Offset Voltage Drift
/ΔT
(Note 6)
LTC6084MS8, LTC6085GN
LTC6084DD, LTC6085DHC
Input Bias Current
(Notes 5, 7)
l
Input Offset Current
(Notes 5, 7)
n
Input Noise Voltage
Density
f = 1kHz
f = 10kHz
l
Input Noise Voltage 0.1Hz to 10Hz 3 3 µV
Input Noise Current
Density (Note 8)
Input Common Mode
l
V
Range
IN
Input Capacitance
f = 100kHz
Differential Mode
Common Mode
300
300
750
1100
300
300
900
1350
25 25
1
1
40
0.5
0.5
30
31
27
31
27
0.56 0.56 fA/√Hz
–
5
9
+
V
–
V
5
9
750
1100
1100
1600
750
150
+
V
µV
µV
µV
µV
µV/°C
pA
pA
pA
pA
nV/√Hz
nV/√Hz
P-P
pF
pF
V
4
60845fa
LTC6084/LTC6085
The l denotes the specifi cations which apply over the full operating
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
CMRR Common Mode Rejection
Ratio
PSRR Power Supply Rejection
Ratio
V
A
I
OUT
VOL
SC
Output Voltage, High,
(Referred to V
Output Voltage, Low,
(Referred to V
+
)
–
)
Large-Signal Voltage Gain R
Output Short-Circuit
Current
SR Slew Rate AV = 1 0.5 0.5 V/µs
GBW Gain Bandwidth Product
(f
= 10kHz)
TEST
Φ
0
t
S
I
S
Phase Margin RL = 10k, CL = 150pF, AV = 1 45 45 Deg
Settling Time 0.1% V
Supply Current
(Per Amplifi er)
Shutdown Current
(Per Amplifi er)
V
S
Supply Voltage Range Guaranteed by the PSRR Test
Channel Separation f
Shutdown Logic SHDNx High
t
t
ON
OFF
Turn On Time V
Turn Off Time V
Leakage of SHDN Pin V
≤ 5V
0 ≤ V
CM
VS = 2.5V to 5.5V
No Load
I
= 1mA
SOURCE
I
= 5mA
SOURCE
No Load
I
= 1mA
SINK
I
= 5mA
SINK
= 10k, 0.5V ≤ V
LOAD
Source and Sink
= 50k, VCM = 2.5V
R
LOAD
= 1V, AV = 1 5 5 µs
STEP
No Load
Shutdown, V
= 10kHz –120 –120 dB
S
SHDNx Low
= 1.2V to 3.5V 7 7 µs
SHDNx
= 3.5V to 1.2V 1 1 µs
SHDNx
= 0V
SHDNx
= 25°C. Test conditions are V+ = 5V, V– = 0V, VCM = 0.5V unless otherwise noted.
A
C SUFFIX H SUFFIX
SHDNx
OUT
≤ 1.2V
≤ 4.5V
70
l
68
94
l
91
l
l
l
l
l
l
1000
l
400
7.7
l
6
0.9
l
0.7
l
l
l
2.5 5.5 2.5 5.5 V
3.5
84 70
84 dB
66
115 94
115 dB
89
0.5
39
220
0.5
36
200
5000 1000
5
85
460
5
85
460
0.5
39
220
0.5
36
200
5000 V/mV
300
12.5 7.7
12.5 mA
4.5
1.5 0.9
1.5 MHz
0.6
110 130
110 130
140
1.1 1.8 1.1 2 µA
3.5
1.2
l
0.5 0.9 0.5 1.2 µA
10
100
10
100
145
1.2
dB
dB
mV
mV
mV
mV
mV
mV
V/mV
mA
µA
µA
V
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: A heat sink may be required to keep the junction temperature
below the absolute maximum. This depends on the power supply voltage
and the total output current.
Note 3: The LTC6084C/LTC6085C are guaranteed functional over the
operating temperature range of –40°C to 85°C. The LTC6084H/LTC6085H
are guaranteed functional over the operating temperature range of –40°C
to 125°C.
Note 4: The LTC6084C/LTC6085C are guaranteed to meet specifi ed
performance from 0°C to 70°C. The LTC6084C/LTC6085C are designed,
characterized and expected to meet specifi ed performance from –40°C
to 85°C but are not tested or QA sampled at these temperatures. The
LTC6084H/LTC6085H are guaranteed to meet specifi ed performance from
–40°C to 125°C.
Note 5: ESD (Electrostatic Discharge) sensitive device. ESD protection
devices are used extensively internal to the LTC6084/LTC6085; however,
high electrostatic discharge can damage or degrade the device. Use proper
ESD handling precautions.
Note 6: This parameter is not 100% tested.
Note 7: This specifi cation is limited by high speed automated test
capability. See Typical Performance Characteristic curves for actual
performance.
Note 8: Current noise is calculated from i
= √2qIB, where q = 1.6 • 10
n
–19
coulombs.
60845fa
5
Loading...