THS7530 Datasheet, PDF (4/24 Pages) Texas Instruments – HIGH-SPEED, FULLY DIFFERENTIAL, CONTINUOUSLY VARIABLE GAIN AMPLIFIER

THS7530
SLOS405C – DECEMBER 2002 – REVISED FEBRUARY 2010
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SPECIFICATIONS: MAIN AMPLIFIER (continued)
V_S+ = 5 V, V_S- = 0 V, V_OCM = 2.5 V, V_ICM = 2.5 V, V_G- = 0 V, V_G+ = 1 V (maximum gain), T_A = 25°C, ac performance measured
using the ac test circuit shown in Figure 1 (unless otherwise noted). DC performance is measured using the dc test circuit
shown in Figure 2 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TYP
+25°C
OVER TEMPERATURE
+25°C
-40°C to
+85°C
UNITS
MIN/
MAX
GAIN CONTROL (See Figure 2)
Gain control differential voltage range
Minus gain control voltage
Minimum gain
Maximum gain
Gain slope
Gain slope variation
Gain error
Gain control input bias current
V_G+
V_G– – V_S–
V_G+ = 0 V
V_G+ = 0.9 V
V_G+ = 0 V to 0.9 V
V_G+ = 0 V to 0.9 V
V_G+ = 0 V to 0.15 V
V_G+ = 0.15 V to 0.9 V
0 to 1
–0.6 to 0.8
11.6
46.5
38.8
±1.5
±4
±2.25
<1
V
Typ
V
Typ
dB
Typ
dB
Typ
dB/V Typ
dB/V Typ
dB
Typ
dB
Typ
µA
Typ
Gain control input resistance
40
kΩ
Typ
Gain control bandwidth
Small signal –3 dB
15
MHz Typ
VOLTAGE CLAMPING (See Figure 2)
Output voltages (V_OUT±) relative to clamp voltages
(V_CL±)
In voltage limiting mode
Input resistance
V_{CL± Voltage limits}
POWER SUPPLY (See Figure 2)
±25
±38
±60
3.3
V_S– to V_S+
mV Max
kΩ
Typ
V
Typ
Specified operating voltage
5
5.5
5.5
V
Max
Maximum quiescent current
40
48
49
mA Max
Power supply rejection (±PSRR)
77
70
45
dB
Min
POWERDOWN (See Figure 2)
Enable voltage threshold
TTL low = shut down
1.4
1.0
V
Min
Disable voltage threshold
TTL high = normal operation
1.4
1.65
V
Max
Power-down quiescent current
0.35
0.4
0.45
mA Max
Input current high
9
16
19
µA Max
Input current low
109
116
119
µA Max
Input impedance
50 || 1
kΩ || pF Typ
Turn-on time delay
Turn-off time delay
820
Measured to 50% quiescent current
500
ns
Typ
ns
Typ
Forward isolation in power down
80
dB
Typ
Input resistance in power down
>1
MΩ Typ
Output resistance in power down
16
kΩ
Typ
4
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