Datasheet

Data Sheet AD8436
Rev. B | Page 3 of 24
SPECIFICATIONS
e
IN
= 300 mV (rms), frequency = 1 kHz sinusoidal, ac-coupled, ±V
S
= ±5 V, T
A
= 25°C, C
AVG
= 10 µF, unless otherwise specified.
Table 1.
AD8436A, AD8436J
AD8436B
Parameter Conditions Min Typ Max Min Typ Max Units
RMS CORE
Conversion Error Default conditions ±10 − 0.5 ±0 ± 0 ±10 + 0.5 ±10 − 0.25 ±0 ± 0 ±10 + 0.25 μV/% rdg
Vs. Temperature −40°C < T < 125 C 0.006 0.006 %/°C
Vs. Rail Voltage ±2.4 V to ±18 V ±0.013 ±0.013 ±%/V
Input V
OS
DC-coupled −500 0 +500 −250 0 +250 μV
Output V
OS
AC-coupled input 0 0 V
Vs. Temperature −40 C < T < 125°C 0.3 0.3 μV/°C
DC Reversal Error DC-coupled, V
IN
= ±300 mV −1.5 0 +1.5 −1.0 0 +1.0 %
Nonlinearity e
IN
= 2 mV to 500 mV ac ±0.2 ±0.2 %
Crest Factor Error (Additional)
1 < CF < 10 CCF = 0.1 μF −0.5 +0.5 −0.5 +0.5 %
Peak Input Voltage
−V
S
− 0.7
+V
S
+ 0.7
−V
S
− 0.7
+V
S
+ 0.7
V
Input Resistance
7.92
8
8.08
7.92
8
8.08
kΩ
Response
V
IN
= 300 mV rms
1% Error (Additional) 65 65 kHz
3 dB Bandwidth 1 1 MHz
Settling Time
0.1% Rising/falling 148/341 148/341 ms
0.01% Rising/falling 158/350 158/350 ms
Output Resistance 15.68 16 16.32 15.68 16 16.32 kΩ
Supply Current No input 325 365 325 365 μA
INPUT BUFFER
Voltage Swing G = 1
Input
AC- or dc-coupled
−V
S
+V
S
−V
S
+V
S
V
Output AC-coupled to Pin RMS −V
S
+ 0.2 +V
S
− 0.2 −V
S
+ 0.2 +V
S
− 0.2 mV
Offset Voltage −1 0 +1 −0.5 0 +0.5 mV
Input Bias Current 50 50 pA
Input Resistance 10
12
10
12
Ω
Response (Frequency)
0.1 dB 950 950 kHz
3 dB Bandwidth 2.1 2.1 MHz
Supply Current 100 160 200 100 160 200 μA
Optional Gain Resistor −9.9 +10 +10.1 −9.9 +10 +10.1 kΩ
Gain Error G = ×1 0.05 0.05 %
OUTPUT BUFFER
R
L
=
∞
Offset Voltage Connected to Pin OUT −200 0 +200 −150 0 +150 μV
Input Current (I
B
) 2 5
1
2 5
1
nA
Output Swing (Voltage) −V
S
+ 50e
-6
+V
S
− 1 −V
S
+ 50e
-6
+V
S
− 1 V
Output Drive Current −0.5 (sink) +15 (source) −0.5 (sink) +15 (source) mA
Gain Error 0.003 0.01 0.003 0.01 %
Supply Current 40 70 40 70 μA
SUPPLY VOLTAGE
Dual
±2.4
±18
±2.4
±18
V
Single 4.8 36 4.8 36 V
1
I
B
max measured at power up. Settles to typical value in <15 seconds.