Datasheet
AD8651/AD8652
Rev. C | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
+
= 2.7 V, V
–
= 0 V, V
CM
= V
+
/2, T
A
= 25°C, unless otherwise specified.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
AD8651 0 V ≤ V
CM
≤ 2.7 V 100 350 V
–40°C ≤ T
A
≤ +85°C, 0 V ≤ V
CM
≤ 2.7 V 1.4 mV
–40°C ≤ T
A
≤ +125°C, 0 V ≤ V
CM
≤ 2.7 V 1.6 mV
AD8652 0 V ≤ V
CM
≤ 2.7 V 90 300 V
–40°C ≤ T
A
≤ +125°C, 0 V ≤ V
CM
≤ 2.7 V 0.4 1.3 mV
Offset Voltage Drift TCV
OS
4 V/°C
Input Bias Current I
B
1 10 pA
–40°C ≤ T
A
≤ +125°C 600 pA
Input Offset Current I
OS
1 10 pA
–40°C ≤ T
A
≤ +85°C 30 pA
–40°C ≤ T
A
≤ +125°C 600 pA
Input Voltage Range V
CM
–0.1 +2.8 V
Common-Mode Rejection Ratio CMRR
AD8651 V
+
= 2.7 V, –0.1 V < V
CM
< +2.8 V 75 95 dB
–40°C ≤ T
A
≤ +85°C, –0.1 V < V
CM
< +2.8 V 70 88 dB
–40°C ≤ T
A
≤ +125°C, –0.1 V < V
CM
< +2.8 V 65 85 dB
AD8652 V
+
= 2.7 V, –0.1 V < V
CM
< +2.8 V 77 95 dB
–40°C ≤ T
A
≤ +125°C, –0.1 V < V
CM
< +2.8 V 73 90 dB
Large Signal Voltage Gain A
VO
R
L
= 1 kΩ, 200 mV < V
O
< 2.5 V 100 115 dB
R
L
= 1 kΩ, 200 mV < V
O
< 2.5 V, T
A
= 85°C 100 114 dB
R
L
= 1 kΩ, 200 mV < V
O
< 2.5 V, T
A
= 125°C 95 108 dB
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 250 A, –40°C ≤ T
A
≤ +125°C 2.67 V
Output Voltage Low V
OL
I
L
= 250 A, –40°C ≤ T
A
≤ +125°C 30 mV
Short-Circuit Limit I
SC
Sourcing 80 mA
Sinking 80 mA
Output Current I
O
40 mA
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 5.5 V, V
CM
= 0 V 76 94 dB
–40°C ≤ T
A
≤ +125°C 74 93 dB
Supply Current I
SY
AD8651 I
O
= 0 9 12 mA
–40°C ≤ T
A
≤ +125°C 14.5 mA
AD8652 I
O
= 0 17.5 19.5 mA
–40°C ≤ T
A
≤ +125°C 22.5 mA
INPUT CAPACITANCE C
IN
Differential 6 pF
Common Mode 9 pF
DYNAMIC PERFORMANCE
Slew Rate SR G = 1, R
L
= 10 kΩ 41 V/s
Gain Bandwidth Product GBP G = 1 50 MHz
Settling Time, 0.01% G = ±1, 2 V step 0.2 s
Overload Recovery Time V
IN
× G = 1.48 V
+
0.1 s
Total Harmonic Distortion + Noise THD + N G = 1, R
L
= 600 Ω, f = 1 kHz, V
IN
= 2 V p-p 0.0006 %
NOISE PERFORMANCE
Voltage Noise Density e
n
f = 10 kHz 5 nV/√Hz
f = 100 kHz 4.5 nV/√Hz
Current Noise Density i
n
f = 10 kHz 4 fA/√Hz