TS921
RAIL TO RAIL HIGH OUTPUT CURRENT
SINGLE OPERATIONAL AMPLIFIER
March 1999
.
RAIL TO RAIL INPUT AND OUTPUT
.
LOW NOISE : 9nV/
((
Hz
)
)
.
LOW DISTORTION
.
HIGH OUTPUT CURRENT : 80mA
(able to drive 32
loads)
.
HIGH SPEED : 4MHz, 1.3V/
s
.
OPERATING FROM 2.7V to 12V
.
ESD INTERNAL PROTECTION : 1.5KV
.
LATCH-UP IMMUNITY
.
MACROMODEL INCLUDED IN THIS
SPECIFICATION
1
2
3
4
5
6
7
8
-
+
Inverting Input
N.C.
Non-inve rting Input
V
CC
V
CC
+
Output
N.C.
N.C.
PIN CONNECTIONS (top view)
DESCRIPTION
The TS921 is a RAIL TO RAIL single BiCMOS
operational amplifier optimized and fully specified
for 3V and 5V operation.
High output current allows low load impedances to
be driven.
The TS921 exhibits a very low noise, low distortion,
low offset and high ouput current capability making
this device an excellent choice for high quality, low
voltage or battery operated audio systems.
The device is stable for capacitive loads up to
500pF.
APPLICATIONS
.
headphone amplifier
.
piezoelectric speaker driver
.
sound cards, multimedia systems
.
line driver, actuator driver
.
servo amplifier
.
mobile phone and portable communication
sets
.
instrumentation with low noise as a key factor
ORDER CODES
Part Number
Temperature Range
Package
N
D
P
TS921I
-40, +125
o
C
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
P
TSSOP8
(Thin Shrink Small Outline Package)
1/11
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage - (note 1)
12
V
V
id
Differential Input Voltage - (note 2)
1
V
V
i
Input Voltage - (note 3)
-0.3 to 14
V
T
oper
Operating Free Air Temperature Range
-40 to +125
o
C
T
stg
Storage Temperature
-65 to +150
o
C
T
j
Maximum Junction Temperature
150
o
C
Output Short Circuit Duration
see note 4
o
C
Notes :
1. All voltage values, except differential voltage are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of input and output voltages must never exceed V
CC
+
+0.3V.
4. Short-circuits can cause excessive heating.
OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
2.7 to 12
V
V
icm
Common Mode Input Voltage Range
V
CC
-
-0.2 to V
CC
+
+0.2
V
TS921
2/11
ELECTRICAL CHARACTERISTICS
V
CC
+
= 3V, T
amb
= 25
o
C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
io
Input Offset Voltage
T
min.
T
amb
T
max.
3
5
mV
DV
io
Input Offset Voltage Drift
2
V/
o
C
I
io
Input Offset Current
V
out
= 1.5V
30
nA
I
ib
Input Bias Current
V
out
= 1.5V
15
100
nA
V
OH
High Level Output Voltage
R
L
= 600
R
L
= 32
2.87
2.63
V
V
OL
Low Level Output Voltage
R
L
= 600
R
L
= 32
180
100
mV
A
vd
Large Signal Voltage Gain (V
out
= 2Vpk-pk)
R
L
= 600
R
L
= 32
35
16
V/mV
I
CC
Supply Current
no load, V
out
= V
CC/2
1
1.5
mA
GBP
Gain Bandwidth Product
R
L
= 600
4
MHz
CMR
Common Mode Rejection Ratio
60
80
dB
SVR
Supply Voltage Rejection Ratio
V
CC
= 2.7 to 3.3V
60
80
dB
I
o
Output Short Circuit Current
50
80
mA
SR
Slew Rate
0.7
1.3
V/
s
m
Phase Margin at Unity Gain
R
L
= 600
,C
L
= 100pF
68
Degrees
G
m
Gain Margin
R
L
= 600
,C
L
= 100pF
12
dB
e
n
Equivalent Input Noise Voltage
f = 1kHz
9
nV
Hz
THD
Total Harmonic Distortion
V
out
= 2Vpk-pk, F = 1kHz, A
V
= 1, R
L
= 600
0.005
%
TS921
3/11
ELECTRICAL CHARACTERISTICS
V
CC
+
= 5V, T
amb
= 25
o
C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
io
Input Offset Voltage
T
min.
T
amb
T
max.
3
5
mV
DV
io
Input Offset Voltage Drift
2
V/
o
C
I
io
Input Offset Current
V
out
= 1.5V
30
nA
I
ib
Input Bias Current
V
out
= 1.5V
15
100
nA
V
OH
High Level Output Voltage
R
L
= 600
R
L
= 32
4.85
4.4
V
V
OL
Low Level Output Voltage
R
L
= 600
R
L
= 32
300
120
mV
A
vd
Large Signal Voltage Gain (V
out
= 2Vpk-pk)
R
L
= 600
R
L
= 32
35
16
V/mV
I
CC
Supply Current
no load, V
out
= V
CC/2
1
1.5
mA
GBP
Gain Bandwidth Product
R
L
= 600
4
MHz
CMR
Common Mode Rejection Ratio
60
80
dB
SVR
Supply Voltage Rejection Ratio
V
CC
= 2.7 to 3.3V
60
80
dB
I
o
Output Short Circuit Current
50
80
mA
SR
Slew Rate
0.7
1.3
V/
s
m
Phase Margin at Unity Gain
R
L
= 600
,C
L
= 100pF
68
Degrees
G
m
Gain Margin
R
L
= 600
,C
L
= 100pF
12
dB
e
n
Equivalent Input Noise Voltage
f = 1kHz
9
nV
Hz
THD
Total Harmonic Distortion
V
out
= 2Vpk-pk, F = 1kHz, A
V
= 1, R
L
= 600
0.005
%
TS921
4/11
** Standard Linear Ics Macromodels, 1996.
** CONNECTIONS :
* 1 INVERTING INPUT
* 2 NON-INVERTING INPUT
* 3 OUTPUT
* 4 POSITIVE POWER SUPPLY
* 5 NEGATIVE POWER SUPPLY
. S U BC K T T S9 2 1 1 3 2 4 5 ( a n al o g )
*********************************************************
.MODEL MDTH D IS=1E-8 KF=2.664234E-16
CJO=10F
* INPUT STAGE
CIP 2 5 1.000000E-12
CIN 1 5 1.000000E-12
EIP 10 5 2 5 1
EIN 16 5 1 5 1
RIP 10 11 8.125000E+00
RIN 15 16 8.125000E+00
RIS 11 15 2.238465E+02
DIP 11 12 MDTH 400E-12
DIN 15 14 MDTH 400E-12
VOFP 12 13 DC 153.5u
VOFN 13 14 DC 0
IPOL 13 5 3.200000E-05
CPS 11 15 1e-9
DINN 17 13 MDTH 400E-12
VIN 17 5 -0.100000e+00
DINR 15 18 MDTH 400E-12
VIP 4 18 0.400000E+00
FCP 4 5 VOFP 1.865000E+02
FCN 5 4 VOFN 1.865000E+02
FIBP 2 5 VOFP 6.250000E-03
FIBN 5 1 VOFN 6.250000E-03
* GM1 STAGE ***************
FGM1P 119 5 VOFP 1.1
FGM1N 119 5 VOFN 1.1
RAP 119 4 2.6E+06
RAN 119 5 2.6E+06
* GM2 STAGE ***************
G2P 19 5 119 5 1.92E-02
G2N 19 5 119 4 1.92E-02
R2P 19 4 1E+07
R2N 19 5 1E+07
**************************
VINT1 500 0 5
GCONVP 500 501 119 4 19.38 !envoie ds VP,
I(VP)=(V119-V4)/2/Ut VP 501 0 0
GCONVN 500 502 119 5 19.38 !envoie ds VN,
I(VN)=(V119-V5)/2/Ut VN 502 0 0
********* orientation isink isource *******
VINT2 503 0 5
FCOPY 503 504 VOUT 1
DCOPYP 504 505 MDTH 400E-9
VCOPYP 505 0 0
DCOPYN 506 504 MDTH 400E-9
VCOPYN 0 506 0
***************************
F2PP 19 5 poly(2) VCOPYP VP 0 0 0 0 0.5 !multiplie
I(vout)*I(VP)=Iout*(V119-V4)/2/Ut
F2PN 19 5 poly(2) VCOPYP VN 0 0 0 0 0.5
!multiplie I(vout)*I(VN)=Iout*(V119-V5)/2/Ut
F2NP 19 5 poly(2) VCOPYN VP 0 0 0 0 1.75
!multiplie I(vout)*I(VP)=Iout*(V119-V4)/2/Ut
F2NN 19 5 poly(2) VCOPYN VN 0 0 0 0 1.75
!multiplie I(vout)*I(VN)=Iout*(V119-V5)/2/Ut
* COMPENSATION ************
CC 19 119 25p
* OUTPUT***********
DOPM 19 22 MDTH 400E-12
DONM 21 19 MDTH 400E-12
HOPM 22 28 VOUT 6.250000E+02
VIPM 28 4 5.000000E+01
HONM 21 27 VOUT 6.250000E+02
VINM 5 27 5.000000E+01
VOUT 3 23 0
ROUT 23 19 6
COUT 3 5 1.300000E-10
DOP 19 25 MDTH 400E-12
VOP 4 25 1.052
DON 24 19 MDTH 400E-12
VON 24 5 1.052
.ENDS
.
RAIL TO RAIL INPUT AND OUTPUT
.
LOW NOISE : 9nV
Hz
.
LOW DISTORTION
.
HIGH OUTPUT CURRENT : 80mA
(able to drive 32
loads)
.
HIGH SPEED : 4MHz, 1.3V/
s
.
OPERATING FROM 2.7V TO 12V
MACROMODEL
TS921
5/11
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