Input Voltage Range Extends to Ground
Output Swings to Ground while Sinking Current
■
Guaranteed
■
Guaranteed
■
Guaranteed
■
Guaranteed
Offset Voltage: 50µV Max
Low Drift: 1.3µV/°C Max
Offset Current: 0.5nA Max
High Gain
5mA Load Current: 1.5 Million Min
17mA Load Current: 0.8 Million Min
■
Guaranteed
■
Supply Current can be Reduced by a Factor of 4
■
Low Voltage Noise, 0.1Hz to 10Hz: 0.55µV
Low Supply Current: 520µA Max
P-P
Low Current Noise—
Better than OP-07: 0.07pA/√Hz at 10Hz
■
High Input Impedance: 250MΩ Min
■
Minimum Supply Voltage: 2.7V Min
U
APPLICATIO S
■
Low Power Sample-and-Hold Circuits
■
Battery-Powered Precision Instrumentation
Strain Gauge Signal Conditioners
Thermocouple Amplifiers
■
4mA to 20mA Current Loop Transmitters
■
Active Filters
The LT®1006 is the first precision single supply operational
amplifier. Its design has been optimized for single supply
operation with a full set of specifications at 5V.
Specifications at ±15V are also provided.
The LT1006 has a low offset voltage of 20µV, drift of
0.2µV/°C, offset current of 120pA, gain of 2.5 million,
common mode rejection of 114dB and power supply
rejection of 126dB.
Although supply current is only 340µA, a novel output
stage can source or sink in excess of 20mA while retaining
high voltage gain. Common mode input range includes
ground to accommodate low ground-referenced inputs
from strain gauges or thermocouples, and output can
swing to within a few millivolts of ground. If a higher
slew rate (in excess of 1V/µs) or micropower operation
(supply current down to 90µA) is required, the operating
currents can be modified by connecting an external
optional resistor to Pin 8.
For similar single supply precision dual and quad op amps,
please see the LT1013/LT1014 data sheet. For micropower
dual and quad op amps, please see the LT1078/LT1079
data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
LT1006 Single Supply, Micropower Sample and Hold
9V
360k
1/4 CD4066
390Ω390ΩS3S4
2
3
INPUT
0V TO 5V
SAMPLE-HOLD COMMAND
7
–
A1
LT1006
+
4
HIGH = SAMPLE
LOW = HOLD
8
6
1/2 CD4066
S1
S2
1/2 CD4066
LT1006 • TA01
U
1/4 CD4066
0.01µF
360k
8
2
–
A2
LT1006
3
+
4
ACQUISITION TIME20µs
HOLD SETTLING TIME10µs
S-H OFFSET1mV
HOLD SUPPLY CURRENT250µA
SAMPLE SUPPLY CURRENT5.0mA
1kHz SAMPLE RATE CURRENT 800µA
Distribution of Input Offset Voltage
20
VS = 5V, 0V
18
T
= 25°C
A
350 LT1006s TESTED
16
FROM TWO RUNS
14
J AND N PACKAGES
12
10
UNITS (%)
7
6
OUTPUT
8
6
4
2
0
–80
–40
INPUT OFFSET VOLTAGE (µV)
4080
0
LT1006 • G01
1006fa
1
LT1006
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT
–IN
+IN
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
+
–
V
OS
TRIM
I
SY
SET
(NOTE 3)
V
OS
TRIM
(NOTE 4)
WWWU
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage ...................................................... ±22V
Input Voltage ............... Equal to Positive Supply Voltage
Input Voltage ............5V Below Negative Supply Voltage
Differential Input Voltage ......................................... 30V
Consider the N8 or S8 Package for Alternate Source
Operating Temperature Range
LT1006AM/LT1006M (OBSOLETE)....– 55°C to 125°C
LT1006AC/LT1006C/LT1006S8 ............... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
ORDER
PART NUMBER
LT1006CN8
LT1006S8
S8 PART MARKING
T
= 100°C, θJA = 130°C/W (N8)
JMAX
T
= 150°C, θJA = 200°C/W (S8)
JMAX
J8 PACKAGE 8-LEAD CERDIP
T
= 100°C, θJA = 130°C/W
JMAX
1006
LT1006AMJ8
LT1006MJ8
LT1006ACJ8
LT1006CJ8
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
VS = 5V, VCM = 0V, V
= 1.4V, TA = 25°C, unless otherwise noted.
OUT
LT1006AM/ACLT1006M/C
SYMBOLPARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS
V
OS
Input Offset Voltage20503080µV
LT1006S880400µV
∆V
OS
Long-Term Input Offset0.40.5µV/Mo
∆TimeVoltage StabilityLT1006S80.7µV/Mo
I
OS
I
B
e
n
Input Offset Current0.120.50.150.9nA
Input Bias Current9151025nA
Input Noise Voltage0.1Hz to 10Hz0.550.55µV
Input Noise Voltage DensityfO = 10Hz23322332nV/√Hz
f
= 1000Hz22252225nV/√Hz
O
i
n
Input Noise Current DensityfO = 10Hz0.070.08pA/√Hz
Input Resistance(Note 2)
2
Differential Mode180400100300MΩ
Common Mode54GΩ
P-P
1006fa
LT1006
ELECTRICAL CHARACTERISTICS
SYMBOLPARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS
Input Voltage Range3.53.83.53.8V
CMRRCommon Mode Rejection RatioVCM = 0V to 3.5V10011497112dB
PSRRPower Supply Rejection RatioVS = ±2V to ±18V, VO = 0V106126103124dB
A
VOL
SRSlew Rate0.250.40.250.4V/µs
I
S
Large-Signal Voltage GainVO = 0.03V to 4V, RL = 10k1.02.50.72.0V/µV
= 0.03V to 3.5V, RL = 2k0.52.00.31.8V/µV
V
O
Maximum Output Voltage SwingOutput Low, No Load15251525mV
Output Low, 600Ω to GND510510mV
Output Low, I
Output High, No Load4.04.44.04.4V
Output High, 600Ω to GND3.44.03.44.0V
Supply CurrentR
Minimum Supply Voltage2.72.7V
= ∞340520350570µA
SET
= 180k Pin 8 to Pin 7 (Note 3)9090µA
R
SET
VS = 5V, VCM = 0V, V
= 1mA220350220350mV
SINK
= 1.4V, TA = 25°C, unless otherwise noted.
OUT
LT1006AM/ACLT1006M/C
0–0.30– 0.3V
The ● denotes the specifications which apply over the full operating temperature range. VS = 5V, 0V; VCM = 0.1V; VO = 1.4V;
–55°C ≤ TA ≤ 125°C, unless otherwise noted.
LT1006AMLT1006M
SYMBOLPARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS
V
OS
∆V
∆Temp
I
OS
I
B
A
VOL
CMRRCommon Mode Rejection RatioVCM = 0.1V to 3.2V●9010387102dB
PSRRPower Supply Rejection RatioVS = ±2V to ±18V, VO = 0V●10011797116dB
I
S
Input Offset Voltage●4018060250µV
Input Offset Voltage Drift●0.21.30.31.8µV/°C
Large-Signal Voltage GainVO = ±10V, RL = 2k●130.72.5V/µV
Maximum Output Voltage SwingRL = 2k●±12.5±13.9±11.5±13.8V
Supply Current●370600380660µA
●80330µV
●150730µV
●0.73.5µV/°C
●1.04.5µV/°C
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: This parameter is guaranteed by design and is not tested.
Note 3: Regular operation does not require an external resistor. In order
to program the supply current for low power or high speed operation,
connect an external resistor from Pin 8 to Pin 7 or from Pin 8 to Pin 4,
respectively. Supply current specifications (for R
current in R
SET
.
= 180k) do not include
SET
Note 4: Optional offset nulling is accomplished with a potentiometer
connected between the trim terminals and the wiper to V
(providing a null range of ±6mV) is recommended for minimum drift of
nulled offset voltage with temperature. For increased trim resolution and
accuracy, two fixed resistors can be used in conjunction with a smaller
potentiometer. For example, two 4.7k resistors tied to Pins 1 and 5, with a
500Ω pot in the middle, will have a null range of ±150µV.
–
. A 10k pot
1006fa
5
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