Datasheet

AFE031
www.ti.com SBOS531D –AUGUST 2010–REVISED MAY 2012
ELECTRICAL CHARACTERISTICS: Receiver (Rx) (continued)
At T
J
= +25°C, PA_V
S
= 16 V, V
AVDD
= V
DVDD
= 3.3 V, and 10 kΩ connected to PA_ISET (pin 46), unless otherwise noted.
AFE031
PARAMETER CONDITIONS MIN TYP MAX UNIT
Rx PGA2
Input
Input voltage range GND – 0.1 AV
DD
+ 0.1 V
G = 64 V/V 1.7 kΩ
G = 16 V/V 6.3 kΩ
Input impedance R
I
G = 4 V/V 21 kΩ
G = 1 V/V 53 kΩ
Frequency Response
G = 64 V/V 300 kHz
G = 16 V/V 800 kHz
Bandwidth BW
G = 4 V/V 1.4 MHz
G = 1 V/V 4 MHz
Output
Voltage output swing from
V
O
R
LOAD
= 10 kΩ, connected to AV
DD
/2 10 100 mV
AGND or AV
DD
Sourcing 25 mA
Maximum continuous current, dc I
O
Sinking 25 mA
Output impedance R
O
G = 1, f = 100 kHz 1 Ω
Gain
G = 1 V/V –2 ±1 2 %
G = 4 V/V –2 ±1 2 %
Gain error
G = 16 V/V –2 ±1 2 %
G = 64 V/V –4 ±1 4 %
Gain error drift T
J
= –40°C to +125°C 6 ppm/°C
Rx Sensitivity
Integrated noise, RTI
(1)
CENELEC Band A Noise-reducing capacitor = 1 μF from
14 μV
RMS
(40 kHz to 90 kHz) pin 28 to ground
CENELEC Bands B/C/D Noise-reducing capacitor = 1 μF from
11 μV
RMS
(95 kHz to 140 kHz) pin 28 to ground
(1) Includes Rx PGA1, Rx_Filter, Rx PGA2, and REF2 bias generator.
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