Datasheet

ELECTRICAL CHARACTERISTICS
INA159-EP
SBOS443 – NOVEMBER 2008 .......................................................................................................................................................................................... www.ti.com
Boldface limits apply over the specified temperature range, T
A
= – 55 ° C to +125 ° C.
At T
A
= +25 ° C, R
L
= 10 k Ω connected to V
S
/2, REF pin 1 connected to ground, and REF pin 2 connected to V
REF
= 5 V,
unless otherwise noted.
INA159
PARAMETER CONDITIONS UNIT
MIN TYP MAX
OFFSET VOLTAGE
(1)
RTO
V
S
= ± 2.5 V, Reference and Input
Initial
(1)
V
OS
± 100 ± 500 µ V
Pins Grounded
Over Temperature ± 1450 µ V
vs Power Supply PSRR V
S
= ± 0.9 V to ± 2.75 V ± 20 ± 100 µ V/V
Over Temperature PSRR V
S
= ± 0.9 V to ± 2.75 V ± 200 µ V/V
Reference Divider Accuracy
(2)
± 0.002 ± 0.024 %
over Temperature ± 0.002 ± 0.050 %
INPUT IMPEDANCE
(3)
Differential 240 k Ω
Common-Mode 60 k Ω
INPUT VOLTAGE RANGE RTI
Common-Mode Voltage Range V
CM
Positive 17.5 V
Negative – 12.5 V
Common-Mode Rejection Ratio CMRR V
CM
= – 10 V to +10 V, R
S
= 0 Ω 80 96 dB
over Temperature 74 94 dB
OUTPUT VOLTAGE NOISE
(4)
RTO
f = 0.1 Hz to 10 Hz 10 µ VPP
f = 10 kHz 30 nV/ √ Hz
V
REF2
= 4.096 V,
R
L
Connected to GND,
GAIN
(V
IN+
) – (VIN – ) = – 10 V to +10 V,
V
CM
= 0 V
Initial G 0.2 V/V
Error ± 0.005 ± 0.024 %
vs Temperature ± 0.035 %
Nonlinearity ± 0.0002 % of FS
OUTPUT
V
REF2
= 4.096 V, (V+) –
Voltage, Positive (V+) – 0.1 V
R
L
Connected to GND 0.02
over Temperature (V+) – 0.2 V
V
REF2
= 4.096 V, (V – ) +
Voltage, Negative (V – ) + 0.048 V
R
L
Connected to GND 0.01
over Temperature (V – ) + 0.070 V
Current Limit, Continuous to Common ± 60 mA
Capacitive Load See Typical Characteristic pF
Open-Loop Output Impedance R
O
f = 1 MHz, I
O
= 0 110 Ω
FREQUENCY RESPONSE
Small-Signal Bandwidth – 3 dB 1.5 MHz
Slew Rate SR 15 V/ µ s
Settling Time, 0.01% t
S
4 V Output Step, C
L
= 100 pF 1 µ s
(1) Includes effects of amplifier input bias and offset currents.
(2) Reference divider accuracy specifies the match between the reference divider resistors using the configuration in Figure 2 .
(3) Internal resistors are ratio matched but have 20% absolute value.
(4) Includes effects of amplifier input current noise and thermal noise contribution of resistor network.
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