AD8603/AD8607/AD8609
Rev. B | Page 4 of 20
Electrical Characteristics @ V
S
= 1.8 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
V
S
= 3.3 V @ V
CM
= 0.5 V and 2.8 V 12 50 μV
–0.3 V < V
CM
< +1.8 V 40 300 μV
–40°C < T
A
< +85°C, –0.3 V < V
CM
< +1.8 V 500 μV
–40°C < T
A
< +125°C, –0.3 V < V
CM
< +1.7 V 700 μV
Offset Voltage Drift ∆V
OS
/∆T –40°C < T
A
< +125°C 1 4.5 μV/°C
Input Bias Current I
B
0.2 1 pA
–40°C < T
A
< +85°C 50 pA
–40°C < T
A
< +125°C 500 pA
Input Offset Current I
OS
0.1 0.5 pA
–40°C < T
A
< +85°C 50 pA
–40°C < T
A
< +125°C 250 pA
Input Voltage Range IVR –0.3 +1.8 V
Common-Mode Rejection Ratio CMRR 0 V < V
CM
< 1.8 V 80 98 dB
–40°C < T
A
< +85°C 70 dB
Large Signal Voltage Gain A
VO
R
L
= 10 kΩ, 0.5 V <V
O
< 4.5 V
AD8603 150 3000 V/mV
AD8607/AD8609 100 2000 V/mV
Input Capacitance C
DIFF
2.1 pF
C
CM
3.8 pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA 1.65 1.72 V
–40°C to +125°C 1.6 V
Output Voltage Low V
OL
I
L
= 1 mA 38 60 mV
–40°C to +125°C 80 mV
Output Current I
OUT
±7 mA
Closed-Loop Output Impedance Z
OUT
f = 10 kHz, A
V
= 1 36 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR 1.8 V < V
S
< 5 V 80 100 dB
Supply Current/Amplifier I
SY
V
O
= 0 V 40 50 μA
–40°C < T
A
< +85°C 60 μA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 10 kΩ 0.1 V/μs
Settling Time 0.1% t
S
G = ±1, 1 V Step 9.2 μs
Gain Bandwidth Product GBP R
L
= 100 kΩ 385 kHz
R
L
= 10 kΩ 316 kHz
Phase Margin Ø
O
R
L
= 10 kΩ, R
L
= 100 kΩ 70 Degrees
NOISE PERFORMANCE
Peak-to-Peak Noise e
n p-p
0.1 Hz to 10 Hz 2.3 3.5 μV
Voltage Noise Density e
n
f = 1 kHz 25 nV/√Hz
f = 10 kHz 22 nV/√Hz
Current Noise Density i
n
f = 1 kHz 0.05 pA/√Hz
Channel Separation Cs f = 10 kHz –115 dB
f = 100 kHz –110 dB