Datasheet

AD8276/AD8277 Data Sheet
Rev. C | Page 4 of 20
V
S
= +2.7 V to <±5 V, V
REF
= midsupply, T
A
= 25°C, R
L
= 10 kΩ connected to midsupply, G = 1 difference amplifier configuration, unless
otherwise noted.
Table 3.
G = 1
Grade B Grade A
Parameter Conditions Min Typ Max Min Typ Max Unit
INPUT CHARACTERISTICS
System Offset
1
100 200 100 500 µV
vs. Temperature T
A
= −40°C to +85°C 200 500 µV
Average Temperature
Coefficient
T
A
= −40°C to +85°C 0.5 2 2 5 µV/°C
vs. Power Supply V
S
= ±5 V to ±18 V 5 10 µV/V
Common-Mode Rejection
Ratio (RTI)
V
S
= 2.7 V, V
CM
= 0 V
to 2.4 V, R
S
= 0 Ω
86 80 dB
V
S
= ±5 V, V
CM
= −10 V
to +7 V, R
S
= 0 Ω 86 80 dB
Input Voltage Range
2
−2(V
S
+ 0.1) +2(V
S
− 1.5) −2(V
S
+ 0.1) +2(V
S
− 1.5) V
Impedance
3
Differential 80 80 kΩ
Common Mode 40 40 kΩ
DYNAMIC PERFORMANCE
Bandwidth
450
450
kHz
Slew Rate 1.0 1.0 V/µs
Settling Time to 0.01%
8 V step on output,
C
L
= 100 pF, V
S
= 10 V 5 5 µs
Channel Separation f = 1 kHz 130 130 dB
GAIN
Gain Error 0.005 0.02 0.01 0.05 %
Gain Drift T
A
= −40°C to +85°C 1 5 ppm/°C
OUTPUT CHARACTERISTICS
Output Swing
4
R
L
= 10 kΩ ,
T
A
= −40°C to +85°C −V
S
+ 0.1 +V
S
− 0.15 −V
S
+ 0.1 +V
S
− 0.15 V
Short-Circuit Current
Limit
±10 ±10 mA
Capacitive Load Drive 200 200 pF
NOISE
5
Output Voltage Noise f = 0.1 Hz to 10 Hz 2 2 μV p-p
f = 1 kHz 65 65 nV/√Hz
POWER SUPPLY
Supply Current
6
T
A
= −40°C to +85°C 200 200 μA
Operating Voltage
Range
2.0 36 2.0 36 V
TEMPERATURE RANGE
Operating Range −40 +125 −40 +125 °C
1
Includes input bias and offset current errors, RTO (referred to output).
2
The input voltage range may also be limited by absolute maximum input voltage or by the output swing. See the Input Voltage Range section in the Theory of Operation
section for details.
3
Internal resistors are trimmed to be ratio matched and have ±20% absolute accuracy.
4
Output voltage swing varies with supply voltage and temperature. See Figure 18 through Figure 21 for details.
5
Includes amplifier voltage and current noise, as well as noise from internal resistors.
6
Supply current varies with supply voltage and temperature. See Figure 23 and Figure 24 for details.