LTC1052/LTC7652
ELECTRICAL CHARACTERISTICS
The ■ denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VS = ±5V, test circuit TC1, unless otherwise noted.
LTC1052M
TYP
LTC1052C/LTC7652C
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX MIN
TYP
MAX
UNITS
V
Input Offset Voltage
(Note 3)
(Note 3)
±0.5
±5
±0.5
±0.01
100
±5
µV
µV/°C
OS
∆V /∆Temp Average Input Offset Drift
■
±0.01 ±0.05
±0.05
OS
∆V /∆Time Long-Term Offset Voltage Stability
100
nV/√Month
OS
I
Input Offset Current
Input Bias Current
Input Noise Voltage
±30
±90
±2000
±30
±90
±350
pA
pA
OS
■
■
I
±1
±30
±1000
±1
±30
±175
pA
pA
B
e
R = 100Ω, DC to 10HZ, TC3
R = 100Ω, DC to 1HZ, TC3
S
1.5
0.5
1.5
0.5
µV
µV
nP-P
S
P-P
P-P
I
Input Noise Current
f = 10Hz (Note 5)
0.6
140
150
150
0.6
140
150
150
fA/√Hz
dB
n
–
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
V
= V to 2.7V
■
■
■
■
120
120
120
120
120
CM
SUPPLY
= ±2.375V to ±8V
= ±4V
dB
A
V
R = 10k, V
OUT
120
dB
VOL
OUT
L
Maximum Output Voltage Swing
(Note 4)
R = 10k
±4.7 ±4.85
±4.95
±4.7
±4.85
±4.95
V
V
L
R = 100k
L
SR
Slew Rate
R = 10k, C = 50pF
4
4
V/µs
L
L
GBW
Gain Bandwidth Product
Supply Current
1.2
1.7
1.2
1.7
MHz
I
No Load
2.0
3.0
2.0
3.0
mA
mA
S
■
f
Internal Sampling Frequency
Clamp On Current
330
330
100
10
Hz
S
R = 100k
■
■
25
100
10
25
µA
L
Clamp Off Current
–4V < V
< 4V
100
2
100
1
pA
nA
OUT
Note 1: Absolute Maximum Ratings are those values beyond which the life
testing. V is measured to a limit determined by test equipment
OS
of a device may be impaired.
capability. Voltages on C
and C
, A , CMRR and PSRR are
EXTA
EXTB VOL
+
measured to insure proper operation of the nulling loop to ensure meeting
the V and V drift specifications. See Package-Induced V in the
Note 2: Connecting any terminal to voltages greater than V , or less than
–
V , may cause destructive latch-up. It is recommended that no sources
OS
OS
OS
Applications Information section.
Note 4: Output clamp not connected.
operating from external supplies be applied prior to power-up of the
LTC1052/LTC7652.
Note 3: These parameters are guaranteed by design. Thermocouple effects
1/2
Note 5: Current noise is calculated from the formula: i = (2q I ) , where
n
B
–19
preclude measurement of the voltage levels in high speed automatic
q = 1.6 • 10
coulomb.
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Input Noise Voltage
VS = ±5V, TEST CIRCUIT (TC3)
5µV
DC TO 1Hz
0
5µV
DC TO 10Hz
0
10 SEC.
1052fa
3
Linear [ Linear ]
