THS7530 Datasheet, PDF (4/19 Pages) Texas Instruments – HIGH-SPEED, FULLY DIFFERENTIAL, CONTINUOUSLY VARIABLE GAIN AMPLIFIER

THS7530
SLOS405A DECEMBER 2002– REVISED APRIL 2003
www.ti.com
SPECIFICATIONS: MAIN AMPLIFIER (CONTINUED)
VS+ = 5 V, VS_– = 0 V, VOCM = 2.5 V, VICM = 2.5 V, VG_– = 0 V, VG+ = 1 V (maximum gain), TA = 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)
TYP
OVER TEMPERATURE
PARAMETER
TEST CONDITIONS
25 C
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
VG+
VG_– – VS_–
VG+ = 0 V
VG+ = 0.9 V
VG+ = 0 V to 0.9 V
VG+ = 0 V to 0.9 V
VG+ = 0 V to 0.15 V
VG+ = 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 bandwith
Small signal –3 dB
15
MHz
Typ
VOLTAGE CLAMPING (See Figure 2)
Output voltages (VOUT_±) relative to clamp
voltages (VCL_±)
In voltage limiting mode
±25
±38
±60
mV
Max
VCL_± input resistance
3.3
kΩ
Typ
VCL_± voltage limits
Vs_– to Vs+
V
Typ
POWER SUPPLY (See Figure 2)
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 = normal operation
1.4
1.0
V
Min
Disable voltage threshold
TTL high = shut down
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
Turnon time delay
Turnoff time delay
Measured to 50% quiescent
820
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