Datasheet

ELECTRICAL CHARACTERISTICS
PGA2505
www.ti.com ......................................................................................................................................................... SBOS396B – MARCH 2009 – REVISED JUNE 2009
At T
A
= +25 ° C, VA+ = +5V, VA – = – 5V, VD – = – 5V, and V
COM
IN = 0V, unless otherwise noted.
PGA2505
PARAMETERS CONDITIONS MIN TYP MAX UNIT
DC CHARACTERISTICS
Step Size Gain = 9dB through 60dB 3 dB
Gain Error All gain settings ± 0.5 dB
AC CHARACTERISTICS
f
IN
= 1kHz, Gain = 0dB, V
OUT
= 3.5V
RMS
– 110 – 100 dB
THD+N
f
IN
= 1kHz, Gain = 30dB, V
OUT
= 3.5V
RMS
– 105 – 95 dB
ANALOG INPUT
Maximum Input Voltage Gain = 0dB VA – +1.5 VA+ – 2.0 V
Input Resistance
Per Input Pin 4600 Ω
Differential 9200 Ω
ANALOG OUTPUT
Output Voltage Range V
COM
IN = 0V, R
L
= 600 Ω VA – +0.9 VA+ – 0.9 V
Output Offset Voltage DC servo on, any gain ± 0.08 ± 1 mV
Input-Referred Offset DC servo off, gain = 30dB ± 1 mV
Output Resistive Loading 600 Ω
Load Capacitance Stability 100 pF
Short Circuit Current 10-second duration 100 mA
DIGITAL CHARACTERISTICS
High-Level Input Voltage V
IH
+2.0 VA+ V
Low-Level Input Voltage V
IL
– 0.3 0.8 V
High-Level Output Voltage V
OH
I
O
= 200 µ A (VA+) – 1.0 V
Low-Level Output Voltage V
OL
I
O
= – 3.2mA 0.4 V
Input Leakage Current I
IN
2 10 µ A
POWER SUPPLY
Operating Voltage
VA+ +4.75 +5 +5.25 V
VA – – 4.75 – 5 – 5.25 V
VD – – 4.75 – 5 – 5.25 V
Quiescent Current
IA+ VA+ = +5V 30 40 mA
IA – VA – = – 5V 30 40 mA
ID – VD – = – 5V 1 2 mA
TEMPERATURE RANGE
Operating Free-Air Temperature
T
A
– 40 ÷ 85 ° C
Range
Thermal Resistance
θ
JA
High-K board 72 ° C/W
SSOP-24
θ
JC
High-K board 42 ° C/W
Copyright © 2009, Texas Instruments Incorporated 3
Product Folder Link(s): PGA2505