FEATURES
n
n
n
n
n
n
n
n
n
n
n
n
LTC2360/LTC2361/LTC2362
100ksps/250ksps/500ksps,
12-Bit Serial ADCs in TSOT-23
DESCRIPTION
The LTC
®
2360/LTC2361/LTC2362 are 100ksps/250ksps/
500ksps, 12-bit, sampling A/D converters that draw only
0.5mA, 0.75mA and 1.1mA, respectively, from a single
3V supply. The supply current drops at lower sampling
rates because these devices automatically power down
after conversions. The full-scale input of the LTC2360/
LTC2361/LTC2362 is 0V to V
DD
or V
REF
. These ADCs are
available in tiny 6- and 8-lead TSOT-23 packages.
The serial interface, tiny TSOT-23 package and extremely
high sample rate-to-power ratio make the LTC2360/
LTC2361/LTC2362 ideal for compact, low power, high
speed systems.
The high impedance single-ended analog input and the
ability to operate with reduced spans (down to 1.4V full
scale) allow direct connection to sensors and transducers in
many applications, eliminating the need for gain stages.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
12-Bit Resolution
Low Noise: 73dB SNR
Low Power Dissipation: 1.5mW at 100ksps
100ksps/250ksps/500ksps Sampling Rates
Single Supply 2.35V to 3.6V Operation
No Data Latency
Sleep Mode with 0.1μA Typical Supply Current
Dedicated External Reference (TSOT23-8)
1V to 3.6V Digital Output Supply (TSOT23-8)
SPI/MICROWIRE™ Compatible Serial I/O
Guaranteed Operation from –40°C to 125°C
Tiny 6- and 8-Lead TSOT-23 Packages
APPLICATIONS
n
n
n
n
n
n
Communication Systems
Data Acquisition Systems
Handheld Portable Devices
Uninterrupted Power Supplies
Battery-Operated Systems
Automotive
TYPICAL APPLICATION
12-Bit TSOT23-6/-8 ADC Family
DATA OUTPUT RATE
Part Number
3Msps
LTC2366
1Msps
LTC2365
500ksps
LTC2362
250ksps
LTC2361
100ksps
LTC2360
Single 3V Supply, 500ksps, 12-Bit Sampling ADC
1200
3V
2.2μF
LTC2362
V
DD
V
REF
GND
ANALOG INPUT
0V TO 3V
A
IN
CONV
SCK
SDO
OV
DD
DIGITAL OUTPUT SUPPLY
1V TO V
DD
2.2μF
236012 TA01a
Supply Current vs Sample Rate
V
DD
= 3.6V
T
A
= 25°C
1000
SUPPLY CURRENT (μA)
800
LTC2361
600
LTC2362
400
LTC2360
200
0
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTORS
1
10
100
SAMPLE RATE (ksps)
1000
236012 TA01b
236012fa
1
LTC2360/LTC2361/LTC2362
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
Supply Voltage (V
DD
) ..................................................4V
Supply Voltage (OV
DD
) ................ Min (V
DD
+ 0.3V, 4.0V)
V
REF
and Analog Input Voltage
(Note 3).........................................–0.3V to (V
DD
+ 0.3V)
Digital Input Voltage......................–0.3V to (V
DD
+ 0.3V)
Digital Output Voltage ...................–0.3V to (V
DD
+ 0.3V)
Power Dissipation ...............................................100mW
Operating Temperature Range
LTC2360C/LTC2361C/LTC2362C .............. 0°C to 70°C
LTC2360I/LTC2361I/LTC2362I.............. –40°C to 85°C
LTC2360H/LTC2361H/LTC2362H (Note 12).. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
PIN CONFIGURATION
TOP VIEW
V
DD
1
V
REF
2
GND 3
A
IN
4
8 CONV
7 SCK
6 SDO
5 OV
DD
V
DD
1
GND 2
A
IN
3
TOP VIEW
6 CONV
5 SDO
4 SCK
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 250°C/W
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 250°C/W
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI)
LTC2362CTS8#TRMPBF
LTC2362ITS8#TRMPBF
LTC2362HTS8#TRMPBF
LTC2362CS6#TRMPBF
LTC2362IS6#TRMPBF
LTC2362HS6#TRMPBF
LTC2361CTS8#TRMPBF
LTC2361ITS8#TRMPBF
LTC2361HTS8#TRMPBF
LTC2361CS6#TRMPBF
LTC2361IS6#TRMPBF
LTC2361HS6#TRMPBF
LTC2360CTS8#TRMPBF
LTC2360ITS8#TRMPBF
LTC2360HTS8#TRMPBF
LTC2360CS6#TRMPBF
LTC2360IS6#TRMPBF
TAPE AND REEL
LTC2362CTS8#TRPBF
LTC2362ITS8#TRPBF
LTC2362HTS8#TRPBF
LTC2362CS6#TRPBF
LTC2362IS6#TRPBF
LTC2362HS6#TRPBF
LTC2361CTS8#TRPBF
LTC2361ITS8#TRPBF
LTC2361HTS8#TRPBF
LTC2361CS6#TRPBF
LTC2361IS6#TRPBF
LTC2361HS6#TRPBF
LTC2360CTS8#TRPBF
LTC2360ITS8#TRPBF
LTC2360HTS8#TRPBF
LTC2360CS6#TRPBF
LTC2360IS6#TRPBF
PART MARKING*
LTDBV
LTDBV
LTDBV
LTDGP
LTDGP
LTDGP
LTDGM
LTDGM
LTDGM
LTDGN
LTDGN
LTDGN
LTDGJ
LTDGJ
LTDGJ
LTDGK
LTDGK
PACKAGE DESCRIPTION
8-Lead Plastic TSOT23
8-Lead Plastic TSOT23
8-Lead Plastic TSOT23
6-Lead Plastic TSOT23
6-Lead Plastic TSOT23
6-Lead Plastic TSOT23
8-Lead Plastic TSOT23
8-Lead Plastic TSOT23
8-Lead Plastic TSOT23
6-Lead Plastic TSOT23
6-Lead Plastic TSOT23
6-Lead Plastic TSOT23
8-Lead Plastic TSOT23
8-Lead Plastic TSOT23
8-Lead Plastic TSOT23
6-Lead Plastic TSOT23
6-Lead Plastic TSOT23
TEMPERATURE RANGE
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
LTC2360HS6#TRMPBF
LTC2360HS6#TRPBF
LTDGK
6-Lead Plastic TSOT23
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for information on lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
236012fa
2
LTC2360/LTC2361/LTC2362
CONVERTER CHARACTERISTICS
PARAMETER
Resolution (No Missing Codes)
Integral Linearity Error
Differential Linearity Error
Transition Noise
Offset Error
Gain Error
Total Unadjusted Error
(Notes 5, 6)
(Note 6)
(Note 7)
(Note 6)
(Note 6)
(Note 6)
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
l
l
l
MIN
12
TYP
±0.25
±0.25
0.25
1
0.1
1.1
MAX
±1
±1
±3.5
±2
±3.5
UNITS
Bits
LSB
LSB
LSB
RMS
LSB
LSB
LSB
ANALOG INPUT
SYMBOL
V
IN
I
IN
C
IN
V
REF
I
REF
C
REF
t
AP
t
JITTER
PARAMETER
Analog Input Voltage
The
l
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
S6 Package
TS8 Package
CONV = High
Between Conversions
During Conversions
TS8 Package
TS8 Package
TS8 Package
l
l
l
l
l
MIN
–0.05
–0.05
TYP
MAX
V
DD
+ 0.05
V
REF
+ 0.05
±1
UNITS
V
μA
pF
pF
Analog Input Leakage Current
Analog Input Capacitance
Reference Input Voltage
Reference Input Leakage Current
Reference Input Capacitance
Sample-and-Hold Aperture Delay Time
Sample-and-Hold Aperture Delay Time Jitter
20
4
1.4
20
1
0.3
V
DD
+ 0.05
±1
V
μA
pF
ns
ns
DYNAMIC ACCURACY
SYMBOL
SINAD
SNR
THD
SFDR
IMD
PARAMETER
The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
f
IN
= 49kHz for LTC2360/LTC2361,
f
IN
= 100kHz for LTC2362
f
IN
= 49kHz for LTC2360/LTC2361,
f
IN
= 100kHz for LTC2362
f
IN
= 49kHz for LTC2360/LTC2361,
f
IN
= 100kHz for LTC2362
f
IN
= 49kHz for LTC2360/LTC2361,
f
IN
= 100kHz for LTC2362
f
IN1
= 97kHz, f
IN2
= 100kHz for LTC2362
f
IN1
= 47kHz, f
IN2
= 49kHz for LTC2360/LTC2361
at 3dB
at 0.1dB
SINAD ≥ 68dB
MIN
TYP
72
73
–85
86
–75
10
2
1
MAX
UNITS
dB
dB
dB
dB
dB
MHz
MHz
MHz
Signal-to-(Noise + Distortion) Ratio
Signal-to-Noise Ratio
Total Harmonic Distortion
Spurious Free Dynamic Range
Intermodulation Distortion
Full-Power Bandwidth
Full-Linear Bandwidth
236012fa
3
LTC2360/LTC2361/LTC2362
DIGITAL INPUTS AND DIGITAL OUTPUTS
SYMBOL
V
IH
V
IL
I
IH
I
IL
C
IN
V
OH
V
OL
I
OZ
C
OZ
I
SOURCE
I
SINK
PARAMETER
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage
Hi-Z Output Capacitance
Output Source Current
Output Sink Current
V
DD
= 2.35V to 3.6V, I
SOURCE
= 200μA
V
DD
= 2.35V to 3.6V, I
SINK
= 200μA
CONV = V
DD
CONV = V
DD
V
OUT
= 0V
V
OUT
= V
DD
l
l
l
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
2.7V < V
DD
≤ 3.6V
2.35V ≤ V
DD
≤ 2.7V
2.7V < V
DD
≤ 3.6V
2.35V ≤ V
DD
≤ 2.7V
V
IN
= V
DD
V
IN
= 0V
l
l
l
l
l
l
MIN
2
1.7
TYP
MAX
UNITS
V
V
0.8
0.7
2.5
–2.5
2
V
DD
– 0.2
0.2
±3
4
–10
10
V
V
μA
μA
pF
V
V
μA
pF
mA
mA
POWER REQUIREMENT
SYMBOL
V
DD
OV
DD
I
DD
PARAMETER
Supply Voltage
Digital Output Supply Voltage
Supply Current
Operational Mode, LTC2362
Operational Mode, LTC2361
Operational Mode, LTC2360
Sleep Mode
Sleep Mode
Sleep Mode
Power Dissipation
Operational Mode, LTC2362
Operational Mode, LTC2361
Operational Mode, LTC2360
Sleep Mode
Sleep Mode
Sleep Mode
The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
l
l
MIN
2.35
1.0V
TYP
3.0
MAX
3.6
V
DD
UNITS
V
V
mA
mA
mA
μA
μA
μA
mW
mW
mW
μW
μW
μW
f
SMPL
= 500ksps
f
SMPL
= 250ksps
f
SMPL
= 100ksps
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
f
SMPL
= 500ksps
f
SMPL
= 250ksps
f
SMPL
= 100ksps
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
l
l
l
l
l
l
l
l
l
l
l
l
1.1
0.75
0.5
0.1
0.1
0.1
3.3
2.25
1.5
0.3
0.3
0.3
2
1.5
1
2
2
5
7.2
5.4
3.6
7.2
7.2
18
P
D
236012fa
4
LTC2360/LTC2361/LTC2362
TIMING CHARACTERISTICS
SYMBOL
f
SMPL(MAX)
f
SCK
t
SCK
t
ACQ
t
CONV
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
PARAMETER
Maximum Sampling Frequency
Shift Clock Frequency
Shift Clock Period
Acquisition Time
Conversion Time
Minimum Positive CONV Pulse Width
SCK↑ Setup Time After CONV↓
SDO Enabled Time After CONV↓
SCK Low Time
SCK High Time
SDO Data Valid Hold Time After SCK↓
SDO Into Hi-Z State Time After CONV↑
(Note 8)
(Note 8)
(Notes 8, 9)
(Note 11)
(Note 11)
(Notes 8, 9)
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
(Notes 8, 9)
(Notes 8, 9)
l
l
l
l
l
l
l
l
l
l
l
MIN
100
LTC2360
TYP MAX
10
MIN
250
LTC2361
TYP MAX
25
MIN
500
LTC2362
TYP MAX
50
UNITS
kHz
MHz
ns
μs
μs
μs
μs
ns
100
10
2
8
8
16
16
8
40%
40%
4
6
40
4
1
3
3
16
16
8
40%
40%
4
6
20
2
0.5
1.5
1.5
16
16
8
40%
40%
4
6
t
THROUGHPUT
Minimum Throughput Time, t
ACQ
+ t
CONV
ns
ns
t
SCK
t
SCK
ns
ns
SDO Data Valid Access Time After SCK↓ (Notes 8, 9, 10)
l
(Notes 8, 9, 10)
l
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
All voltage values are with respect to GND.
Note 3:
When pins A
IN
and V
REF
are taken below GND or above V
DD
,
they will be clamped by internal diodes. These products can handle input
currents greater than 100mA below GND or above V
DD
without latch-up.
Note 4:
V
DD
= OV
DD
= V
REF
= 2.35V to 3.6V, f
SMPL
= f
SMPL(MAX)
and
f
SCK
= f
SCK(MAX)
unless otherwise specified.
Note 5:
Integral linearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 6:
Linearity, offset and gain specifications apply for a single-ended
A
IN
input with respect to GND.
Note 7:
Typical RMS noise at code transitions.
Note 8:
Guaranteed by characterization. All input signals are specified with
t
r
= t
f
= 2ns (10% to 90% of V
DD
) and timed from a voltage level of 1.6V.
Note 9:
All timing specifications given are with a 10pF capacitance load.
With a capacitance load greater than this value, a digital buffer or latch
must be used.
Note 10:
The time required for the output to cross the V
IH
or V
IL
voltage.
Note 11:
Guaranteed by design, not subject to test.
Note 12:
High temperatures degrade operating lifetimes. Operating lifetime
is derated at temperatures greater than 105°C.
236012fa
5
京公网安备 11010802033920号
EEWORLD
