LT1469-2
6
14692f
ELECTRICAL CHARACTERISTICS
Distribution of Input Offset
Voltage
Distribution of Inverting Input
Bias Current
Supply Current vs Supply Voltage
and Temperature
Input Noise Spectral Density 0.1Hz to 10Hz Voltage Noise
Total Noise vs Unmatched
Source Resistance
INPUT OFFSET VOLTAGE (µV)
–175
PERCENTAGE OF UNITS (%)
–125 –75 –25 25 75 125 175
50
40
30
20
10
0
14692 G01
V
S
= ±15V
T
A
= 25°C
INVERTING INPUT BIAS CURRENT (nA)
–10
PERCENTAGE OF UNITS (%)
–7.5 –5 –2.5 0 2.5 5 7.5 10
40
30
20
10
0
14692 G02
V
S
= ±15V
T
A
= 25°C
SUPPLY VOLTAGE (±V)
0
SUPPLY CURRENT (mA)
14692 G03
5 10 15 20
6
5
4
3
2
1
85°C
25°C
–40°C
FREQUENCY (Hz)
1
1
INPUT VOLTAGE NOISE (nV/√Hz)
INPUT CURRENT NOISE (pA/√Hz)
100
1000
10 100 1k 10k
100k
14692 G04
10
0.01
1
i
n
e
n
10
0.1
V
S
= ±15V
T
A
= 25°C
A
V
= 101
R
S
= 100k FOR i
n
TIME (1s/DIV)
VOLTAGE NOISE (100nV/DIV)
14692 G05
V
S
= ±15V
T
A
= 25°C
SOURCE RESISTANCE, R
S
(Ω)
1
TOTAL NOISE VOLTAGE (nV/√Hz)
10
10 1k 10k 100k
14692 G06
0.1
100
100
V
S
= ±15V
T
A
= 25°C
f = 10kHz
TOTAL
NOISE
RESISTOR
NOISE ONLY
R
S
–
+
TYPICAL PERFORMANCE CHARACTERISTICS
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: The inputs are protected by back-to-back diodes and two 100
series resistors. If the differential input voltage exceeds 0.7V, the input
current should be limited to less than 10mA. Input voltages outside the
supplies will be clamped by ESD protection devices and input currents
should also be limited to less than 10mA.
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefi nitely.
Note 4: The LT1469C-2 and LT1469I-2 are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 5: The LT1469C-2 is guaranteed to meet specifi ed performance from
0°C to 70°C and is designed, characterized and expected to meet specifi ed
performance from –40°C to 85°C but is not tested or QA sampled at these
temperatures. The LT1469I-2 is guaranteed to meet specifi ed performance
from –40°C to 85°C.
Note 6: Slew rate is measured between ±8V on the output with ±12V
swing for ±15V supplies and ±2V on the output with ±3V swing for ±5V
supplies. Tested in A
V
= –10
Note 7: Full-power bandwidth is calculated from the slew rate.
FPBW = SR/2πV
P
.
Note 8: This parameter is not 100% tested.
Note 9: ΔCMRR and ΔPSRR are defi ned as follows: 1) CMRR and PSRR
are measured in µV/V on each amplifi er; 2) the difference between the two
sides is calculated in µV/V; 3) the result is converted to dB.
