LINER LT1022MH High speed, precision jfet input operational amplifier Datasheet

LT1022
High Speed, Precision
JFET Input Operational Amplifier
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FEATURES
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■
■
■
■
■
DESCRIPTIO
Guaranteed Slew Rate: 23V/µs Min
Guaranteed Offset Voltage: 250µV Max
– 55°C to 125°C: 750µV Max
Guaranteed Drift: 5µV/°C Max
Guaranteed Bias Current:
70°C, 180pA Max
125°C, 4nA Max
Gain-Bandwidth Product: 8.5MHz Typ
Settling Time to 0.05% (10V Step): 0.9µs Typ
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APPLICATIO S
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■
The LT®1022 JFET input operational amplifier combines
high speed and precision performance.
A 26V/µs slew rate and 8.5MHz gain-bandwidth product
are simultaneously achieved with offset voltage of
typically 80µV, 1.5µV/°C drift, bias currents of 50pA at
70°C, 500pA at 125°C. The output delivers 20mA of load
current without gain degradation.
The 250µV maximum offset voltage specification
represents less than 1/2 least significant bit error in a
14-bit, 10V system.
The LT1022A meets or exceeds all OP-16A and OP-16E
specifications. It is faster and more accurate without
stability problems at cold temperatures.
Fast D/A Output Amplifiers (12, 14, 16 Bits)
High Speed Instrumentation
Fast, Precision Sample and Hold
Voltage-to-Frequency Converters
Logarithmic Amplifiers
The LT1022 can be used as the output amplifier for 12-bit
current output D/A converters, as shown below.
For a more accurate, lower power dissipation, but slower
JFET input op amp, please refer to the LT1055 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
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TYPICAL APPLICATIO
12-Bit Voltage Output D/A Converter
CF
0mA TO 2mA
OR 4mA
–
7
LT1022
3
+
6
OUTPUT
0V TO 10V
5V/DIV
15V
2
12-BIT CURRENT OUTPUT D/A
CONVERTER (e.g., 6012, 565 OR DAC-80)
Large-Signal Response
4
–15V
CF = 15pF TO 33pF
SETTLING TIME TO 2mV (0.8 LSB) = 1.5µs TO 2µs
LT1022 • TA01
AV = 1
CL = 100pF
TA = 25°C
VS = ±15V
0.5µs/DIV
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LT1022
W W
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AXI U
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ABSOLUTE
RATI GS
(Note 1)
Supply Voltage ...................................................... ±20V
Differential Input Voltage ....................................... ±40V
Input Voltage ......................................................... ±20V
Output Short Circuit Duration .......................... Indefinite
Operating Temperature Range
LT1022AM/1022M (OBSOLETE).........–55°C to 125°C
LT1022AC/1022C .................................... 0°C to 70°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C
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PACKAGE/ORDER I FOR ATIO
TOP VIEW
N/C
8
BALANCE 1
+
7 V
6 OUT
–IN 2
+IN 3
4
V–
5 BALANCE
ORDER PART
NUMBER
LT1022AMH
LT1022MH
LT1022ACH
LT1022CH
ORDER PART
NUMBER
LT1022CN8
TOP VIEW
BAL
1
8
N/C
–IN
2
7
V+
+IN
3
6
OUT
V–
4
5
BAL
N8 PACKAGE 8-LEAD PDIP
TJMAX = 100°C, θJA = 130°C/W
METAL CAN H PACKAGE
TJMAX = 150° C, θJA = 150°C/W, θJC = 45° C/W
OBSOLETE PACKAGE
Consider the N8 Package as an Alternate Source
LT1022 • POI01
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted.
LT1022M, LT1022CH
LT1022CN8
MIN
TYP
MAX
SYMBOL PARAMETER
CONDITIONS
VOS
Input Offset Voltage (Note 2)
H Package
N8 Package
lOS
Input Offset Current
Fully Warmed Up
2
10
2
20
pA
IB
Input Bias Current
Fully Warmed Up
VCM = +10V
±10
30
±50
100
±10
30
±50
150
pA
pA
VCM = –11V to 8V
VCM = 8V to 11V
1012
1012
1011
Input Resistance—Differential
—Common Mode
MIN
LT1022AM
LT1022AC
TYP
MAX
80
Input Capacitance
250
100
160
1012
1012
1011
4
4
en
Input Noise Voltage
0.1Hz to 10Hz
2.5
2.8
en
Input Noise Voltage Density
fO = 10Hz (Note 3)
fO = 1kHz (Note 4)
28
14
50
20
in
Input Noise Current Density
fO = 10Hz, 1kHz (Note 5)
1.8
4
AVOL
Large Signal Voltage Gain
VO = ±10V RL = 2k
RL = 1k
Input Voltage Range
CMRR
Common-Mode Rejection Ratio
VCM = ±10.5V
PSRR
Power Supply Rejection Ratio
VS = ±10V to ±18V
VOUT
Output Voltage Swing
RL = 2k
SR
Slew Rate
600
1000
UNITS
µV
µV
Ω
Ω
Ω
pF
µV/P-P
30
15
60
22
nV/√Hz
nV/√Hz
1.8
4
fA√Hz
150
130
400
300
120
100
400
300
V/mV
V/mV
±10.5
±12
±10.5
±12
V
86
94
82
92
dB
88
104
86
102
dB
±12
±13.2
±12
±13.2
V
23
26
18
24
V/µs
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LT1022
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
CONDITIONS
GBW
Gain-Bandwidth Product
f = 1MHz
IS
Supply Current
Settling Time
Offset Voltage Adjustment Range
VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted.
MIN
LT1022AM
LT1022AC
TYP
MAX
LT1022M, LT1022CH
LT1022CN8
MIN
TYP
MAX
8.5
5.2
UNITS
8.0
7.0
MHz
5.2
7.0
mA
A = +1 or A = –1
10V Step to 0.05%
10V Step to 0.02%
0.9
1.3
0.9
1.3
µs
µs
RPOT = 100k
±7
±7
mV
The ● denotes the specifications which apply over the full operating temperature range of VCM = 0V, 0°C ≤ TA ≤ 70°C. VS = ± 15V,
unless otherwise noted.
LT1022AC
MIN
TYP
MAX
MIN
LT1022CH
LT1022CN8
TYP
MAX
SYMBOL PARAMETER
CONDITIONS
UNITS
VOS
Input Offset Voltage
(Note 2)
H Package
N8 Package
●
●
140
480
180
300
1000
1700
µV
µV
Average Temperature
Coefficient of Input Offset Voltage
H Package
N8 Package (Note 6)
●
●
1.3
5.0
1.8
3.0
9.0
15.0
µV/°C
µV/°C
IOS
Input Offset Current
Warmed Up, TA = 70°C
●
15
80
18
100
pA
IB
Input Bias Current
Warmed Up, TA = 70°C
●
±50
±200
±60
±250
pA
AVOL
Large-Signal Voltage Gain
VO = ±10V, RL = 2k
●
80
250
60
250
V/mV
CMRR
Common Mode Rejection Ratio
VCM = ±10.4V
●
85
93
80
91
dB
PSRR
Power Supply Rejection Ratio
VS = ±10V to ±18V
●
86
103
84
101
dB
VOUT
Output Voltage Swing
RL = 2k
●
±12
±13.1
±12
±13.1
V
The ● denotes the specifications which apply over the full operating temperature range of – 55°C ≤ TA ≤ 125°C. VS = ± 15V, VCM = 0V,
unless otherwise noted.
LT1022AM
TYP
MAX
LT1022M
TYP
MAX
UNITS
●
230
750
300
1500
µV
(Note 6)
●
1.5
5.0
2.0
9.0
µV/°C
Input Offset Current
Warmed Up, TA = 125°C
●
0.3
2.0
0.30
3.0
nA
IB
Input Bias Current
Warmed Up, TA = 125°C
●
± 0.5
± 4.0
± 0.7
± 6.0
nA
AVOL
Large Signal Voltage Gain
VO = ±10V, RL = 2k
●
40
120
35
120
V/mV
CMRR
Common-Mode Rejection Ratio
VCM = ±10.4V
●
85
92
80
90
dB
PSRR
Power Supply Rejection Ratio
VS = ±10V to ±17V
●
86
102
84
100
dB
VOUT
Output Voltage Swing
RL = 2k
●
±12
±12.9
±12
±12.9
V
SYMBOL PARAMETER
CONDITIONS
VOS
Input Offset Voltage
(Note 2)
Average Temperature
Coefficient of Input Offset Voltage
IOS
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2: Offset voltage is measured under two different conditions:
(a) approximately 0.5 seconds after application of power;
(b) at TA = 25°C, with the chip self-heated to approximately 45°C
to account for chip temperature rise when the device is fully warmed up.
Note 3: 10Hz noise voltage density is sample tested on every lot of A
grades. Devices 100% tested at 10Hz are available on request.
MIN
MIN
Note 4: This parameter is tested on a sample basis only.
Note 5: Current noise is calculated from the formula: in = (2qIB)1/2, where
q = 1.6 • 10 –19 coulomb. The noise of source resistors up to 1GΩ swamps
the contribution of current noise.
Note 6: Offset voltage drift with temperature is practically unchanged when
the offset voltage is trimmed to zero with a 100k potentiometer between
the balance terminals and the wiper tied to V +. Devices tested to tighter
drift specifications are available on request.
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LT1022
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TYPICAL PERFOR A CE CHARACTERISTICS
120
100
20
120
GAIN (dB)
GAIN (dB)
TA = 25°C
80
60
40
TA = –55°C
CL = 10pF
10
GAIN
PHASE
1
10
100
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
180
CL = 300pF
VS = ±15V
TA = 25°C
CL = 300pF
0
–20
140
160
0
20
100
–10
1
3
200
220
CL = 10pF
10
30
FREQUENCY (MHz)
LT1022 • TPC01
240
100
30
12
SLEW
11
20
10
9
GBW (f = 1MHz)
8
60
7
50
6
θM
40
–50 –25
50
25
0
75
TEMPERATURE (°C)
100
125
LT1022 • TPC03
Small-Signal Response
Settling Time
10
VS = ±15V
TA = 25°C
20mV/DIV
24
18
12
6
1M
FREQUENCY (Hz)
10M
AV = +1
CL = 100pF
TA = 25°C
VS = ±15V
0.2µs/DIV
OUTPUT VOLTAGE SWING FROM 0V (V)
30
PEAK-TO-PEAK OUTPUT SWING (V)
VS = ±15V
CL = 10pF
LT1022 • TPC02
Undistorted Output Swing vs
Frequency
0
100k
40
GAIN BANDWIDTH PRODUCT (MHz)
CLMAX ≈ 500pF
(AV = +1)
SLEW RATE (V/µs)
80
30
VS = ±15V
PHASE MARGIN (DEGREES)
140
TA = 125°C
Phase Margin, Gain Bandwidth
Product, Slew Rate vs Temperature
Gain, Phase Shift vs Frequency
PHASE SHIFT (DEGREES)
Gain vs Frequency
10mV
5mV 2mV
1mV
0.5mV
5
0
VS = ±15V
TA = 25°C
2mV
–5
5mV
10mV
–10
0
1mV
1
0.5mV
2
3
SETTLING TIME (µs)
LT1022 • TPC04
LT1022 • TPC05
The typical behavior of many LT1022 parameters is identical to the LT1056. Please refer to the LT1055/1056 data
sheet for the following typical performance characteristics:
Input Bias and Offset Currents vs Temperature
Input Bias Current Over the Common-Mode Range
Distribution of Input Offset Voltage (H and N8 Package)
Distribution of Offset Voltage Drift with Temperature
Warm-Up Drift
Long Term Drift of Representative Units
0.1Hz to 10Hz Noise
Voltage Noise vs Frequency
Noise vs Chip Temperature
Short Circuit Current vs Time
Output Impedance vs Frequency
Common Mode Range vs Temperature
Common Mode and Power Supply Rejections vs Temperature
Common Mode Rejection Ratio vs Frequency
Power Supply Rejection Ratio vs Frequency
Voltage Gain vs Temperature
Supply Current vs Supply Voltage
Output Swing vs Load Resistance
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LT1022
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APPLICATIO S I FOR ATIO
The LT1056 applications information is directly
applicable to the LT1022. Please consult the
LT1055/1056 data sheet for details on:
(4) phase-reversal protection
(1) plug-in compatibility to industry standard devices
(6) noise performance
(2) offset nulling
(7) simplified circuit schematic
(5) high speed operation (including settling time
test circuit)
(3) achieving picoampere/microvolt performance
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TYPICAL APPLICATIO S
Fast Piezoelectric Accelerometer
1pF TO 5pF
ENDEVCO #2215
ACCELEROMETER
1010Ω
2
–
15V
7
LT1022
3
+
6
OUTPUT
4
–15V
LT1022 • TA03
1022fa
5
LT1022
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TYPICAL APPLICATIO S
10Hz to 1MHz Voltage-to-Frequency Converter
100pF
(POLYSTYRENE)
1.8k
15V
15V
2N2222
2N2222
INPUT
0V TO 10V
5k
2
22.1k
(METAL FILM)
1000pF
1.8k
3
+
7
–
2N2222
1.8k
4.7k
4
1
6
LT1022
3
+
–15V
4
15V
1k
100k
LT1009
200k
8
+
1
0.1µF
LT1011
–
–15V
1.8k
2
7
4
= 1N4148
TTL OUTPUT
8
–15V
1k
10k
20k
15V
2
LT1011
15V
7
–
1.8k
10pF
100k
–15V
1.8k
15V
3
LT1022 • TA04
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6
LT1022
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TYPICAL APPLICATIO S
PIN Photodiode-to-Frequency Converter
5pF
FULL-SCALE TRIM
15V
47pF*†
1.8k
15V
2N2222
2N2222
1000pF†
1.8k
4.7k
LM329
2
3
TTL OUTPUT
20Hz ← 2MHz
8
+
7
–
2N2222
1.8k
4.7k
4
1
6
LT1022
10M
3
LIGHT
INPUT
+
–15V
4
100k
–15V
–15V
15V
3.3M
200k
LT1004
2.5V
8
+
1k
1k
0.1µF
LT1011
1
1.8k
2
7
–
10k
DARK
CURRENT
TRIM
2
10k
20k
15V
LT1011
15V
7
–
1.8k
2pF
100k
–15V
1.8k
15V
3
4
–15V
SCALE FACTOR =
1nW/Hz AT 900 NANOMETERS FROM 20nW TO 2mW
= HEWLETT PACKARD PHOTODIODE HP5082-4204
= 1N4148
† POLYSTYRENE
* SELECT VALUE FOR 2mW IN = 2MHz OUT
LT1022 • TA05
1022fa
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LT1022
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TYPICAL APPLICATIO S
Wide Bandwidth Absolute Value Circuit
10k*
10k*
10k*
10pF
10pF
15V
10k*
INPUT
±10V
2
–
LT1022
3
1N4148
7
15V
2
4
6
LT1022
3
+
7
–
6
+
4
1N4148
–15V
OUTPUT
0V TO 10V
–15V
*0.1%
1% ACCURACY TO 300kHz
5% ACCURACY TO 700kHz
10k*
LT1022 • TA06
Fast, Differential Input Current Source
15V
VIN1
VIN2
R*
R*
2
–
LT1022
3
+
10pF
7
4
–15V
R*
IOUT =
6
VIN2 – VIN1
R
R*
IOUT
RL
*MATCH TO 0.01%
FULL-SCALE POWER BANDWIDTH
= 1MHz FOR IOUTR = 8VP-P
= 400kHz FOR IOUTR = 20VP-P
MAXIMUM IOUT = 10mAP-P
IOUTP-P • RL
COMMON-MODE VOLTAGE AT LT1022 INPUT =
2
LT1022 • TA07
1022fa
8
LT1022
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TYPICAL APPLICATIO S
High Output Current Op Amp
15V
RS
2
15V
–
6
LT1022
3
+
10k
CF
7
OUTPUT
LT1010
4
–15V
–15V
SLEW RATE = 26V/µs
IOUT = 150mA
CL CAN BE 1µF
AV = +1, CF = 1000pF
AV = –1, CF = 10pF
LT1022 • TA08
Low Distortion Sine Wave Oscillator
15V
# 327 LAMP
2
–
†
430Ω
7
6
LT1022
0.033µF
3
+
4
OUTPUT
0.033µF†
–15V
10k 953Ω*
953Ω*
10k
* 1% FILM
10k DUAL POTENTIOMETER —
MATCH TRACKING TO 0.1%
†
MATCH CAPACITORS TO 0.1%
5kHz TO 50kHz RANGE
DISTORTION < 0.1%
AMPLITUDE = 18VP-P
LT1022 • TA09
1022fa
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LT1022
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TYPICAL APPLICATIO S
Fast, Precision Sample-And-Hold
1k
330pF
–
LT1022
SAMPLE-AND-HOLD
SIGNAL PATH
2N4393
LT1010
+
INPUT
2k
–
LEVEL SHIFT
15V
LT1022
39pF
HP5082-2810
3k
1N4148
2N2907
2N2222
TTL
INPUT
1000pF
POLYSTYRENE
1k
2N2369
470Ω
OUTPUT
+
1.5k
4.7k*
1000pF
2N2369
20k
1N4148
–15V
0.1µF
820Ω
HOLD STEP
COMPENSATION
10k
820Ω
15pF
–15V
20pF
13k
5.1k
–
HP5082-2810
LT318A
2N2222
16ns APERTURE TIME
2µs ACQUISITION TIME TO 0.01%
SAMPLE-AND-HOLD OFFSET < 250µV
HOLD SETTLING < 100ns
5k
HOLD STEP
COMPENSATION
TRIM
+
3.5k
LT1020 • TA10
1022fa
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LT1022
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PACKAGE DESCRIPTIO
H Package
8-Lead TO-5 Metal Can (.200 Inch PCD)
(Reference LTC DWG # 05-08-1320)
0.335 – 0.370
(8.509 – 9.398)
DIA
0.305 – 0.335
(7.747 – 8.509)
0.040
(1.016)
MAX
0.050
(1.270)
MAX
SEATING
PLANE
0.165 – 0.185
(4.191 – 4.699)
GAUGE
PLANE
0.010 – 0.045*
(0.254 – 1.143)
REFERENCE
PLANE
0.500 – 0.750
(12.700 – 19.050)
0.016 – 0.021**
(0.406 – 0.533)
0.027 – 0.045
(0.686 – 1.143)
PIN 1
45°TYP
0.028 – 0.034
(0.711 – 0.864)
0.200
(5.080)
TYP
0.110 – 0.160
(2.794 – 4.064)
INSULATING
STANDOFF
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
0.016 – 0.024
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
(0.406 – 0.610)
H8(TO-5) 0.200 PCD 1197
OBSOLETE PACKAGE
1022fa
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
LT1022
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PACKAGE DESCRIPTIO
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
0.400*
(10.160)
MAX
8
7
6
5
1
2
3
4
0.255 ± 0.015*
(6.477 ± 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.045 – 0.065
(1.143 – 1.651)
0.065
(1.651)
TYP
0.009 – 0.015
(0.229 – 0.381)
+0.035
0.325 –0.015
(
8.255
+0.889
–0.381
0.130 ± 0.005
(3.302 ± 0.127)
0.100
(2.54)
BSC
)
0.125
(3.175) 0.020
MIN
(0.508)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
N8 1098
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
1022fa
12
Linear Technology Corporation
LW/TP 0902 1K REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 1985
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