TS925
RAIL TO RAIL HIGH OUTPUT CURRENT
QUAD OPERATIONAL AMPLIFIER
s
s
s
s
s
s
s
s
RAIL TO RAIL INPUT AND OUTPUT
LOW NOISE : 9nV/√Hz
LOW DISTORTION
HIGH OUTPUT CURRENT :
80mA
(able to drive
32Ω
loads)
HIGH SPEED :
4MHz, 1.3V/µs
OPERATING FROM
2.7V
TO
12V
LOW INPUT OFFSET VOLTAGE :
900µV
max. (TS925A)
N
DIP16
(Plastic Package)
s
ADJUSTABLE PHANTOM GROUND (VCC/2)
s
STANDBY MODE
s
s
s
s
ESD INTERNAL PROTECTION : 2kV
LATCH-UP IMMUNITY
MACROMODEL
INCLUDED IN THIS
SPECIFICATION
D
SO16
(Plastic Micropackage)
DESCRIPTION
The TS925 is a RAIL TO RAIL quad BiCMOS op-
erational amplifier optimized and fully specified for
3V and 5V operation.
High output current allows low load impedances to
be driven. An internal low impedance PHANTOM
GROUND eliminates the need for an external ref-
erence voltage or biasing arrangement.
The TS925 exhibits a very low noise, low distor-
tion and high output current making this device an
excellent choice for high quality, low voltage or
battery operated audio/telecom systems.
The device is stable for capacitive loads up to
500pF.
When the STANDBY mode is enabled, the total
consumption drops to 6µA (V
CC
= 3V).
APPLICATIONS
P
TSSOP16
(Thin Shrink Small Outline Package)
ORDER CODE
Part Number
TS925I
Temperature
Range
-40°C, +125°C
Package
N
•
D
•
P
•
N =
Dual in Line Package (DIP)
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
P =
Thin Shrink Small Outline Package (TSSOP) - only available
in Tape & Reel (PT)
PIN CONNECTIONS
(top view)
Output 1
Inverting
Input 1
Non-inverting
Input 1
V
CC
1
2
16
Output 4
Inverting
Input 4
Non-inverting
Input 4
V
CC
15
-
3
4
5
+
+
-
14
6
Output 2
Phantom ground
7
8
February 2001
-
+
+
-
s
s
s
s
Headphone amplifier
Soundcard amplifier, piezoelectric speaker
MPEG boards, multimedia systems, ...
Cordless telephones and portable communi-
cation equipment
s
Line driver, buffer
s
Instrumentation with low noise as key factor
+
13
-
Non-inverting
Input 2
Inverting
Input 2
12
Non-inverting
Input 3
Inverting
Input 3
Output 3
Stdby
11
10
9
1/15
TS925
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
id
V
i
T
oper
T
j
R
thja
1.
2.
3.
4.
Parameter
Supply voltage
1)
Differential Input Voltage
2)
Input Voltage
3)
Operating Free Air Temperature Range
Maximum Junction Temperature
Thermal Resistance Junction to Ambient
Output Short Circuit Duration
Value
14
±1
-0.3 to 14
-40 to +125
150
130
see note
4)
Unit
V
V
V
°C
°C
°C/W
°C
All voltage values, except differential voltage are with respect to network ground terminal.
Differential voltages are the non-inverting input terminal with respect to the inverting input t erminal.
The magnitude of input and output voltages must never exceed V
CC +
+0.3V.
Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-circuit on all amplifiers.
Do not short circuit outputs to VCC+ when exceeding 8V : this can induce reliability defects.
OPERATING CONDITIONS
Symbol
V
CC
V
icm
Supply voltage
Common Mode Input Voltage Range
Parameter
Value
2.7 to 12
V
CC
-
-0.2 to V
CC
+
+0.2
Unit
V
V
2/15
TS925
ELECTRICAL CHARACTERISTICS
V
CC
+
= 3V, V
CC-
= 0V, T
amb
= 25°C (unless otherwise specified)
OPERATIONAL AMPLIFIER
Symbol
Input Offset Voltage
V
io
DV
io
I
io
I
ib
T
min.
≤
T
amb
≤
T
max.
Input Offset Voltage Drift
Input Offset Current
V
out
= 1.5V
Input Bias Current
V
out
= 1.5V
High Level Output Voltage
R
L
connected to V
cc/2
Low Level Output Voltage
R
L
connected to V
cc/2
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
2.90
2.87
2.63
50
100
180
200
35
16
4
60
60
50
0.7
80
85
80
1.3
68
dB
12
9
0.01
120
dB
nV
-----------
-
Hz
%
mA
V/µs
Degrees
dB
dB
V/mV
mV
Parameter
TS925
TS925A
TS925
TS925A
2
1
15
30
nA
100
V
Min.
Typ.
Max.
3
0.9
5
1.8
Unit
mV
µV/°C
nA
V
OH
V
OL
A
vd
Large Signal Voltage Gain (V
out
= 2Vpk-pk) R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
Gain Bandwith Product
R
L
= 600Ω
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
V
cc
= 2.7 to 3.3V
Output Short-Circuit Current
Slew Rate
Phase Margin at Unit Gain
R
L
= 600Ω, C
L
=100pF
Gain Margin
R
L
= 600Ω, C
L
=100pF
Equivalent Input Noise Voltage
f = 1kHz
Total Harmonic Distortion
V
out
= 2Vpk-pk
,
F = 1kHz, A
v
= 1, R
L
=600Ω
Channel Separation
GBP
CMR
SVR
I
o
SR
Pm
GM
e
n
THD
C
s
MHz
3/15
TS925
GLOBAL CIRCUIT
Symbol
I
CC
I
stby
V
enstby
V
distby
1.
Parameter
Total Supply Current
No load, V
out
= V
cc/2
Total Supply Current in STANDBY
(pin 9 connected to V
cc-
)
Pin 9 Voltage to enable the STANDBY mode
1)
T
min
≤
T
amb
≤
T
max
Pin 9 Voltage to disable the STANDBY mode (see note1)
T
min
≤
T
amb
≤
T
max
Min.
Typ
5
6
Max.
7
Unit
mA
µA
0.3
0.4
1.1
1
V
V
the STANDBY mode is currently enabled when Pin 9 is GROUNDED and disabled when Pin 9 is left OPEN.
PHANTOM GROUND
Symbol
V
pg
I
pgsc
Z
pg
Parameter
Phantom Ground Output Voltage
No Output Current
Phantom Ground Output Short Circuit Current (sourced)
Phantom Ground Impedance
DC to 20kHz
Phantom Ground Output Voltage Noise (f=1kHz)
C
dec
= 100pF
C
dec
= 1nF
C
dec
= 10nF
1)
I
pgsk
1.
Min.
V
cc/2
-5%
12
Typ
V
cc/2
18
3
200
40
17
Max.
V
cc/2
+5%
Unit
V
mA
Ω
E
npg
nV
-----------
-
Hz
mA
Phantom Ground Output Short Circuit Current (sinked)
12
18
C
dec
is the decoupling capacitor on Pin9
4/15
TS925
ELECTRICAL CHARACTERISTICS
V
CC
+
= 5V, V
CC-
= 0V, T
amb
= 25°C (unless otherwise specified)
Symbol
Input Offset Voltage
V
io
DV
io
I
io
I
ib
T
min.
≤
T
amb
≤
T
max.
Input Offset Voltage Drift
Input Offset Current
V
out
= 2.5V
Input Bias Current
V
out
= 2.5V
High Level Output Voltage
R
L
connected to V
cc/2
Low Level Output Voltage
R
L
connected to V
cc/2
Large Signal Voltage Gain
V
out
= 4Vpk-pk
V
out
= 4Vpk-pk
GBP
CMR
SVR
I
o
SR
Pm
GM
e
n
THD
C
s
Gain Bandwith Product
R
L
= 600Ω
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
V
cc
= 3V to 5V
Output Short-Circuit Current
Slew Rate
Phase Margin at Unit Gain
R
L
= 600Ω, C
L
=100pF
Gain Margin
R
L
= 600Ω, C
L
=100pF
Equivalent Input Noise Voltage
f = 1kHz
Total Harmonic Distortion
V
out
= 3Vpk-pk
,
F = 1kHz, A
v
= 1, R
L
=600Ω
Channel Separation
60
60
50
0.7
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
4.90
4.85
4.4
50
120
300
200
40
17
4
80
85
80
1.3
68
dB
12
9
0.01
120
dB
nV
-----------
-
Hz
%
mA
V/µs
Degrees
dB
dB
V/mV
mV
Parameter
TS925
TS925A
TS925
TS925A
2
1
15
30
nA
100
V
Min.
Typ.
Max.
3
0.9
5
1.8
Unit
mV
µV/°C
nA
V
OH
V
OL
A
vd
MHz
5/15
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