TS185x, TS185xA
1.8 V input/output, rail-to-rail, low power operational amplifiers
Features
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■
■
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■
■
■
■
Pin connections (top view)
TS1851ILT
Out
V
CC-
In+
1
2
3
4
In-
5
V
CC+
Operating range from V
CC
= 1.8 to 6 V
Rail-to-rail input and output
Extended V
icm
(V
CC-
- 0.2 V to V
CC +
+ 0.2 V)
Low supply current (120
μA)
Good accuracy (1 mV max for A version)
Gain bandwidth product (530 kHz)
High unity gain stability (able to drive 500 pF)
ESD tolerance (2 kV)
Latch-up immunity
Available in SOT23-5 micropackage
N.C.
In-
In+
V
CC-
1
2
3
4
TS1851ID/IDT
8
_
+
7
6
5
N.C.
V
CC+
Out
N.C.
Applications
■
■
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■
TS1852ID/IDT-TS1852IST-TS1852IPT
Out1
In1-
In1+
V
CC-
1
2
3
4
_
+
_
+
8
7
6
5
V
CC+
Out2
In2-
In2+
Two-cell battery-powered systems
Battery-powered electronic equipment
Cordless phones
Cellular phones
Laptops
PDAs
TS1854ID/IDT-TS1854IPT
Out1
In1-
In1+
V
CC+
In2+
In2-
Out2
1
2
3
4
5
6
7
+
_
+
_
_
+
_
+
14 Out4
13 In4-
12 In4+
11 V
CC-
10 In3+
9
8
In3-
Out3
Description
The TS185x (single, dual and quad) can operate
with voltages as low as 1.8 V. They feature both
input and output rail-to-rail (1.71 at V
CC
= 1.8 V,
R
L
= 2 kΩ), 120
μA
current consumption and
530 kHz gain bandwidth product.
With this low consumption and a sufficient GBP
for many applications, these operational
amplifiers are well-suited to all kinds of battery
supplied and portable applications.
The TS1851 is housed in the space-saving 5-pin
SOT23-5 package, which simplifies board design
(outside dimensions are 2.8 mm x 2.9 mm).
Table 1.
Reference
TS185x
TS185xA
Device summary
Single
version
TS1851
TS1851A
Dual
version
TS1852
TS1852A
Quad
version
TS1854
TS1854A
March 2010
Doc ID 6991 Rev 4
1/24
www.st.com
24
Contents
TS185x, TS185xA
Contents
1
2
3
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1
3.2
3.3
3.4
3.5
3.6
SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
MiniSO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SO-14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TSSOP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4
5
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/24
Doc ID 6991 Rev 4
TS185x, TS185xA
Absolute maximum ratings and operating conditions
1
Absolute maximum ratings and operating conditions
Table 2.
Symbol
V
CC
V
id
V
i
T
oper
T
stg
T
j
Absolute maximum ratings
Parameter
Supply voltage
(1)
Differential input voltage
(2)
Input voltage
Operating free-air temperature range
Storage temperature
Maximum junction temperature
Thermal resistance junction to ambient
(3)
SOT23-5
miniSO-8
SO-8
SO-14
TSSOP8
TSSOP14
Thermal resistance junction to case
SOT23-5
miniSO-8
SO-8
SO-14
TSSOP8
TSSOP14
HBM: human body model
(4)
Value
7
±1
V
CC-
-0.3 to V
CC+
+0.3
-40 to + 125
-65 to +150
150
250
190
125
103
120
100
81
39
40
31
37
32
2
200
1.5
250
See note
(7)
Unit
V
V
V
°C
°C
°C
R
thja
°C/W
R
thjc
°C/W
kV
V
kV
°C
ESD
MM: machine model
(5)
CDM: charged device model
(6)
Lead temperature (soldering, 10sec)
Output short-circuit duration
1. All voltage values, except differential voltages, are with respect to network terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. If
V
id
> ±1 V, the maximum input current must not exceed ±1 mA. When V
id
> ±1 V, add an input series
resistor to limit the input current.
3. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-
circuits on all amplifiers.
4. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
5. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5
Ω).
This is done for all couples of
connected pin combinations while the other pins are floating.
6. Charged device model: all pins and package are charged together to the specified voltage and then
discharged directly to ground through only one pin. This is done for all pins.
7. Short-circuits from the output to V
CC
can cause excessive heating. The maximum output current is
approximately 48 mA, independent of the magnitude of V
CC
. Destructive dissipation can result from
simultaneous short-circuits on all amplifiers.
Doc ID 6991 Rev 4
3/24
Absolute maximum ratings and operating conditions
Table 3.
Symbol
V
CC
V
icm
T
oper
Supply voltage
Common-mode input voltage range
T
op
= 25°C, 1.8
≤
V
CC
≤
6 V
T
min
< T
op
< T
max
, 1.8
≤
V
CC
≤
5.5 V
Operating free-air temperature range
TS185x, TS185xA
Operating conditions
Parameter
Value
1.8 to 6
V
CC-
- 0.2 to V
CC+
+ 0.2
V
CC-
to V
CC+
-40 to + 125
Unit
V
V
°C
4/24
Doc ID 6991 Rev 4
TS185x, TS185xA
Electrical characteristics
2
Table 4.
Symbol
Electrical characteristics
Electrical characteristics measured at V
CC+
= +1.8 V, V
CC-
= 0 V, with C
L
and R
L
connected to
V
CC
/2, T
amb
= 25°C (unless otherwise specified)
(1)
Parameter
Conditions
TS1851/2/4
T
min
≤
T
amb
≤
T
max
TS1851A/2A/4A
T
min
≤
T
amb
≤
T
max
V
icm
= V
out
= V
CC
/2
(2)
T
min
≤
T
amb
≤
T
max
V
icm
= V
out
= V
CC
/2
(2)
T
min
≤
T
amb
≤
T
max
0
≤
V
icm
≤
V
CC
T
min
≤
T
amb
≤
T
max
V
out
= 0.5 to 1.3 V
R
L
= 10 kΩ
R
L
= 2 kΩ
V
id
= 100 mV
R
L
= 10 kΩ
R
L
= 2 kΩ
T
min
≤
T
amb
≤
T
max,
R
L
= 10 kΩ
T
min
≤
T
amb
≤
T
max,
R
L
= 2 kΩ
V
id
= -100 mV
R
L
= 10 kΩ
R
L
= 2 kΩ
T
min
≤
T
amb
≤
T
max,
R
L
= 10 kΩ
T
min
≤
T
amb
≤
T
max,
R
L
= 2 kΩ
V
id
= 100 mV, V
O
= V
CC-
at T
amb
at T
min
≤
T
amb
≤
T
max
V
id
= -100 mV, V
O
= V
CC+,
at T
amb
at T
min
≤
T
amb
≤
T
max
V
out
= V
CC
/2
A
VCL
= 1, no load
T
min
≤
T
amb
≤
T
max
R
L
= 10 kΩ C
L
= 100 pF, f = 100 kHz
,
R
L
= 10 kΩ C
L
= 100 pF, A
V
= 1
,
C
L
= 100 pF
f = 1 kHz
300
0.1
15
5
15
5
120
530
0.18
60
40
0.01
170
200
55
52
80
70
1.7
1.65
1.7
1.65
Min.
Typ.
0.1
Max.
3
6
1
1.5
Unit
V
io
ΔV
io
I
io
I
ib
CMR
Input offset voltage
mV
Input offset voltage drift
Input offset current
Input bias current
Common mode rejection ratio
20 log (ΔV
ic
/ΔV
io
)
Large signal voltage gain
2
1
10
85
9
25
50
80
μV/°C
nA
nA
dB
A
vd
100
100
1.77
1.7
dB
V
OH
High level output voltage
V
V
OL
Low level output voltage
40
62
70
90
100
120
mV
Output source current
I
o
Output sink current
29
5
46
mA
mA
I
CC
GBP
SR
φm
e
n
THD
Supply current (per amplifier)
Gain bandwidth product
Slew rate
Phase margin
Input voltage noise
Total harmonic distortion
μA
kHz
V/μs
Degrees
nV/√Hz
%
1. All parameter limits at temperatures other than 25°C are guaranteed by correlation.
2. Maximum values include unavoidable inaccuracies of the industrial tests.
Doc ID 6991 Rev 4
5/24
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