Datasheet

Data Sheet AD8338
Rev. A | Page 3 of 20
SPECIFICATIONS
AC SPECIFICATIONS
VBAT = 3.0 V, T
A
= 25°C, C
L
= 2 pF on OUTP and OUTM, R
L
= ∞, MODE pin high, R
IN
= 2 × 500 Ω, V
GAIN
= 0.6 V, differential operation,
unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
INPUT INTERFACE INPD, INMD, INPR, INMR pins
Input Voltage Range 3 V p-p
−3 dB Bandwidth 18 MHz
Input Resistance Standard configuration using the INPR and
INMR inputs
0.8 1 1.2 kΩ
Input Capacitance 2 pF
OUTPUT INTERFACE OUTP and OUTM pins
Small Signal Bandwidth V
GAIN
= 0.6 V 18 MHz
Peak Slew Rate V
GAIN
= 0.6 V 50 V/µs
Peak-to-Peak Output Swing Differential output 2.8 V p-p
Common-Mode Voltage 1.5 V
Input-Referred Voltage Noise
Using Internal Resistors V
GAIN
= 1.1 V 4.5 nV/√Hz
V
GAIN
= 0.6 V 15 nV/√Hz
V
GAIN
= 0.1 V 150 nV/√Hz
Using External 47 Ω Resistors V
GAIN
= 1.1 V 1.5 nV/√Hz
Offset Voltage
RTO, V
GAIN
= 0.1 V, offset null enabled
−10
+10
mV
RTO, V
GAIN
= 0.6 V, offset null enabled −10 +10 mV
RTO, V
GAIN
= 0.1 V, offset null disabled −50 +50 mV
RTO, V
GAIN
= 0.6 V, offset null disabled −200 +200 mV
POWER SUPPLY
VBAT
3.0
5.0
V
I
VBAT
Min gain, V
GAIN
= 0.1 V 6.0 8.0 mA
Mid gain, V
GAIN
= 0.6 V 3.0 3.8 mA
Max gain, V
GAIN
= 1.1 V 4.5 6.0 mA
GAIN CONTROL
Gain Range Standard configuration using the INPR and
INMR inputs
0 80 dB
Gain Span 80 dB
Gain Voltage V
GAIN
relative to COMM 0.1 1.1 V
Gain Slope
77
80
83
dB/V
12 12.5 13 mV/dB
Gain Accuracy Standard configuration using the INPR and
INMR inputs; 0.1 V < V
GAIN
< 1.1 V
−2 +0.5 +2 dB
VREF REFERENCE OUTPUT
Output Voltage 1.5 V
Output Current 5 mA
Accuracy 2 %
DETO OUTPUT CURRENT ±10 µA
MODE INPUT
Logic High 2.5 VBAT V
Logic Low COMM 0.6 V
AGC CONTROL MODE = 0 V
Maximum Target Amplitude Expected rms output value for target =
VAGC − VREF = 1.0 V
1.0 V rms