®
TS925
RAIL TO RAIL HIGH OUTPUT CURRENT
QUAD OPERATIONAL AMPLIFIER
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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)
ADJUSTABLE PHANTOM GROUND (V
CC
/2)
STANDBY MODE
N
DIP16
(Plastic Package)
D
SO16
(Plastic Micropackage)
ESD INTERNAL PROTECTION : 2kV
LATCH-UP IMMUNITY
MACROMODEL
INCLUDED IN THIS
SPECIFICATION
P
TSSOP16
(Thin Shrink Small Outline Package)
DESCRIPTION
The TS925 is a RAIL TO RAIL quad BiCMOS
operational 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 distortion
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
Headphone amplifier
Soundcard amplifier, piezoelectric speaker
MPEG boards, multimedia systems, ...
Cordless telephones and portable communica-
tion equipment
Line driver, buffer
Instrumentation with low noise as key factor
ORDER CODES
Part Number
TS925I
Temperature Range
-40, +125 C
o
Package
N
•
D
•
P
•
PIN CONNECTIONS
O utput 1
Inve rting
Inp ut 1
Non-inve rting
Inp ut 1
V
CC
1
2
16
O utput 4
Inve rting
Inp u t 4
Non -inverting
Inp u t 4
V
CC
15
-
3
4
5
+
+
-
14
Inve rting
Inp ut 2
6
O utput 2
P hantom ground
7
8
March 1999
-
+
+
-
.
.
.
.
.
.
+
13
-
Non-inve rting
Inp ut 2
12
Non -inverting
Inp u t 3
Inve rting
Inp u t 3
11
10
O utput 3
S tdby
9
1/16
TS925
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
id
V
i
T
oper
T
j
R
thja
Notes :
1.
2.
3.
4.
Parameter
Supply Voltage - (note 1)
Differential Input Voltage - (note 2)
Input Voltage - (note 3)
Operating Free Air Temperature Range
Maximum Junction Temperation
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
o
C
o
C
o
C/W
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 V
CC+
when exceeding 8V : this can induce reliability defects.
OPERATING CONDITIONS
Symbol
V
CC
V
icm
Parameter
Supply Voltage
Common Mode Input Voltage Range
V
CC
Value
2.7 to 12
-0.2 to V
CC
+0.2
Unit
V
V
2/16
TS925
ELECTRICAL CHARACTERISTICS
V
CC+
= 3V, V
CC-
= 0V, T
amb
= 25
o
C (unless otherwise specified)
OPERATIONAL AMPLIFIER
Symbol
V
io
Parameter
Input OffsetVoltage
T
min.
< T
amb.
< T
max.
DV
io
I
io
I
ib
V
OH
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
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
= 1.5V
V
out
= 1.5V
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
Vout = 2Vpk-pk
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
R
L
= 600Ω
60
V
CC
= 2.7V to 3.3V
60
50
0.7
R
L
= 600Ω, C
L
= 100pF
R
L
= 600Ω, C
L
= 100pF
f = 1KHz
V
out
= 2Vpk-pk, f = 1kHz
A
V
= 1
R
L
= 600Ω
2.90
2.87
2.63
50
100
180
V/mV
200
35
16
4
80
85
80
1.3
68
12
9
MHz
dB
dB
mA
V/µs
Degrees
dB
nV
Hz
√
%
0.01
120
dB
mV
Test Condition
TS925
TS925A
TS925
TS925A
2
1
15
30
100
Min.
Typ.
Max.
3
0.9
5
1.8
Unit
mV
µV/
o
C
nA
nA
V
V
OL
A
vd
GBP
CMR
SVR
I
o
SR
Pm
GM
e
n
THD
Gain Bandwidth Product
Common Mode Rejection
Ratio
Supply Voltage RejectionRatio
Output Short-circuit Current
Slew Rate
Phase Margin at Unit Gain
Gain Margin
Equivalent Input Noise Voltage
Total Harmonic Distortion
C
s
Channel Separation
3/16
TS925
GLOBAL CIRCUIT
Symbol
I
CC
I
stby
V
enstby
V
distby
Parameter
Total Supply Current
Total Supply Current in STANDBY
-
(pin 9 connected to V
CC
)
Pin 9 Voltage to enable the STANDBY
mode - (note 1)
Pin 9 Voltage to disable the
STANDBY mode - (note 1)
T
min.
≤
T
amb
≤
T
max.
T
min.
≤
T
amb
≤
T
max.
1.1
1
Test Condition
No load, V
out
= V
CC/2
Min.
Typ.
5
6
0.3
0.4
Max.
7
Unit
mA
µA
V
V
Note 1 :
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
E
npg
Parameter
Phantom Ground Output Voltage
Phantom Ground Output Short Circuit
Current (sourced)
Phantom Ground Impedance
Phantom Ground Output Voltage
Noise (f = 1kHz)
DC to 20kHz
Cdec = 100pF
Cdec = 1nF
Cdec = 10nF
(note 2)
12
Test Condition
No Output Current
Min.
V
CC/2
-5%
12
Typ.
V
CC/2
18
3
200
40
17
18
Max.
VCC/2
+5%
Unit
V
mA
Ω
nV
⁄
√
Hz
I
pgsk
Phantom Ground Output Short Circuit
Current (sinked)
mA
Note 2 :
C
dec
is the decoupling capacitor on Pin 9.
4/16
TS925
ELECTRICAL CHARACTERISTICS
V
CC+
= 5V, V
CC-
= 0V, T
amb
= 25
o
C (unless otherwise specified)
OPERATIONAL AMPLIFIER
Symbol
V
io
Parameter
Input OffsetVoltage
T
min.
< T
amb.
< T
max.
DV
io
I
io
I
ib
V
OH
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
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
= 2.5V
V
out
= 2.5V
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
R
L
= 10k
R
L
= 600Ω
R
L
= 32Ω
Vout = 4Vpk-pk
R
L
= 10k
R
L
= 600Ω
V
out
= 2Vpk-pk, R
L
= 32Ω
R
L
= 600Ω
60
V
CC
= 3V to 5V
60
50
0.7
R
L
= 600Ω, C
L
= 100pF
R
L
= 600Ω, C
L
= 100pF
f = 1KHz
V
out
= 3Vpk-pk, f= 1kHz
A
V
= 1
R
L
= 600Ω
4.9
4.85
4.4
50
120
300
V/mV
200
40
17
4
80
85
80
1.3
68
12
9
0.01
120
dB
MHz
dB
dB
mA
V/µs
Degrees
dB
nV
Hz
√
%
mV
Test Condition
TS925
TS925A
TS925
TS925A
2
1
15
30
100
Min.
Typ.
Max.
3
0.9
5
1.8
Unit
mV
µV/
o
C
nA
nA
V
V
OL
A
vd
GBP
CMR
SVR
I
o
SR
Pm
GM
e
n
THD
Gain Bandwidth Product
Common Mode Rejection Ratio
Supply Voltage RejectionRatio
Output Short-circuit Current
Slew Rate
Phase Margin at Unit Gain
Gain Margin
Equivalent Input Noise Voltage
Total Harmonic Distortion
C
s
Channel Separation
5/16
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