TS612 ST Microelectronics, Inc., TS612 Datasheet - Page 5

• Manufacturer Part Number: TS612
• Description: Dual Wideband Op-amp With High Output Current
• Manufacturer: ST Microelectronics, Inc.

POWER DOWN MODE V
POWER DOWN EQUIVALENT SHEMATIC
OUPUT IMPEDANCE IN POWER DOWN MODE
In Power Down Mode the output of the driver is in
"high impedance" state. It is really the case for the
static mode. Regarding the dynamic mode, the im-
pedance decreases due to a capacitive effect of
the collector-substrat and base collector junction.
The impedance behaviour comes capacitive, typi-
cally: 1.4M
INTERMODULATION DISTORTION
The curves shown below are the measurements
results of a single operator wired as an adder with
a gain of 15dB.
The operational amplifier is supplied by a symmet-
ric 6V and is loaded with 25 .
Two synthesizers (Rhode & Schwartz SME) gen-
erate two frequencies (tones) (70 & 80kHz or 180
& 280kHz).
An HP3585 spectrum analyzer measures the spu-
rious level at different frequencies.
The curves are traced for different output levels
(the value in the X ax is the value of each tone).
The output levels of the two tones are the same.
The generators and spectrum analyzer are phase
locked to enhance measurement precision.
Symbol
Icc
V
R
C
pdw
pdw
pdw
pdw
operator 1
V
V
Thershold Voltage for Power Down Mode
Power Down Mode Current Consumption
Power Down Mode Ouput Impedance
Power Down Mode Output Capacitance
V
V
pin (1)
high level
high level
low level
low level
// 33pF.
STANDBY CONTROL
V
V
cc
+
_
cc
+
-
. .
CC
= ±6Volts, T
. .
.
POWER
Parameter
DOWN
operator 2
V
V
V
V
pin (7)
Ouput
high level
high level
low level
low level
amb
= 25°C
3rd ORDER INTERMODULATION
(2 tones : 70kHz and 80kHz)
2nd ORDER INTERMODULATION
Spurious measurement @ 100kHz
(2 tones : 180kHz and 280kHz)
3rd ORDER INTERMODULATION
(2 tones : 180kHz and 280kHz)
High Level
Low Level
operator 1
Standby
Standby
-100
-55
-60
-65
-70
Active
Active
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
1,5
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
1
0
230kHz
1
OPERATOR STATUS
1,5
Min.
2
90kHz
1,5
2
80kHz
2
2,5
2
60kHz
380kHz
Vout peak (V)
Vout peak (V)
2,5
Vout peak (V)
Typ.
2,5
1.4
220kHz
3.3
33
0
3
640kHz
3
3
740kHz
3,5
operator 2
Standby
Standby
3,5
3,5
Active
Active
Max
0.8
75
4
4
4
4,5
TS612
4,5
4,5
Unit
µA
pF
V
5/10