.........................(GND – 0.3V) to (REF + 0.3V)
Digital Input Voltage
(Note 3) .......................... (GND – 0.3V) to (OV
DD
+ 0.3V)
Digital Output Voltage
(Note 3) .......................... (GND – 0.3V) to (OV
DD
+ 0.3V)
Power Dissipation .............................................. 500mW
Operating Temperature Range
LTC2370C ................................................ 0°C to 70°C
LTC2370I .............................................–40°C to 85°C
LTC2370H .......................................... –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
CHAIN
V
DD
GND
IN
+
IN
–
GND
REF
REF
1
2
3
4
5
6
7
8
17
GND
16 GND
15 OV
DD
14 SDO
13 SCK
12 RDL/SDI
11 BUSY
10 GND
9 CNV
TOP VIEW
CHAIN
V
DD
GND
IN
+
IN
–
GND
REF
REF
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
OV
DD
SDO
SCK
RDL/SDI
BUSY
GND
CNV
DE PACKAGE
16-LEAD (4mm
×
3mm) PLASTIC DFN
T
JMAX
= 150°C,
θ
JA
= 40°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
MS PACKAGE
16-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 110°C/W
ORDER INFORMATION
LEAD FREE FINISH
LTC2370CMS-16#PBF
LTC2370IMS-16#PBF
LTC2370HMS-16#PBF
LTC2370CDE-16#PBF
LTC2370IDE-16#PBF
TAPE AND REEL
LTC2370CMS-16#TRPBF
LTC2370IMS-16#TRPBF
LTC2370HMS-16#TRPBF
LTC2370CDE-16#TRPBF
LTC2370IDE-16#TRPBF
PART MARKING*
237016
237016
237016
23706
23706
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead (4mm
×
3mm) Plastic DFN
16-Lead (4mm
×
3mm) Plastic DFN
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
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard 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/
237016fa
2
LTC2370-16
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL
V
IN
+
V
IN
–
V
IN
+ – V
IN
–
I
IN
C
IN
CMRR
PARAMETER
Absolute Input Range (IN
+
)
Absolute Input Range (IN
–
)
Input Differential Voltage Range
Analog Input Leakage Current
Analog Input Capacitance
Input Common Mode Rejection Ratio
Sample Mode
Hold Mode
f
IN
= 1MHz
CONDITIONS
(Note 5)
(Note 5)
V
IN
= V
IN
+ – V
IN
–
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
–0.1
–0.1
0
TYP
MAX
V
REF
+ 0.1
0.1
V
REF
±1
UNITS
V
V
V
µA
pF
pF
dB
45
5
77
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER
Resolution
No Missing Codes
Transition Noise
INL
DNL
ZSE
FSE
Integral Linearity Error
Differential Linearity Error
Zero-Scale Error
Zero-Scale Error Drift
Full-Scale Error
Full-Scale Error Drift
(Note 7)
l
CONVERTER CHARACTERISTICS
CONDITIONS
l
l
MIN
16
16
TYP
MAX
UNITS
Bits
Bits
0.5
(Note 6)
(Note 7)
l
l
l
LSB
RMS
0.85
0.5
4
20
LSB
LSB
LSB
LSB/°C
LSB
ppm/°C
–0.85
–0.5
–4
–20
±0.25
±0.1
0
0.02
±4
±1
DYNAMIC ACCURACY
SYMBOL PARAMETER
SINAD
SNR
The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C and A
IN
= –1dBFS. (Notes 4, 8)
CONDITIONS
f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
Signal-to-Noise Ratio
f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 2.5V
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
f
IN
= 2kHz, V
REF
= 2.5V, (H-Grade)
THD
SFDR
Total Harmonic Distortion
Spurious Free Dynamic Range
–3dB Input Bandwidth
Aperture Delay
Aperture Jitter
Transient Response
Full-Scale Step
f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 2.5V
f
IN
= 2kHz, V
REF
= 5V
l
l
l
l
l
l
l
l
l
MIN
90.6
89.6
91.1
86
90
85
TYP
93.9
93.9
94
89.5
94
89.5
–112
–112
MAX
UNITS
dB
dB
dB
dB
dB
dB
Signal-to-(Noise + Distortion) Ratio
–100
–96
dB
dB
dB
MHz
ps
ps
ns
100
113
34
500
4
165
237016fa
3
LTC2370-16
REFERENCE INPUT
SYMBOL
V
REF
I
REF
PARAMETER
Reference Voltage
Reference Input Current
The
l
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
(Note 5)
(Note 9)
l
l
MIN
2.5
TYP
1.1
MAX
5.1
1.3
UNITS
V
mA
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER
V
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
OZ
I
SOURCE
I
SINK
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage Current
Output Source Current
Output Sink Current
I
O
= –500µA
I
O
= 500µA
V
OUT
= 0V to OV
DD
V
OUT
= 0V
V
OUT
= OV
DD
l
l
l
DIGITAL INPUTS AND DIGITAL OUTPUTS
CONDITIONS
MIN
l
l
TYP
MAX
0.2 • OV
DD
UNITS
V
V
µA
pF
V
0.8 • OV
DD
–10
5
OV
DD
– 0.2
0.2
–10
–10
10
10
10
V
IN
= 0V to OV
DD
l
V
µA
mA
mA
POWER REQUIREMENTS
SYMBOL
V
DD
OV
DD
I
VDD
I
OVDD
I
PD
I
PD
P
D
PARAMETER
Supply Voltage
Supply Voltage
Supply Current
Supply Current
Power Down Mode
Power Down Mode
Power Dissipation
Power Down Mode
Power Down 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
2.375
1.71
TYP
2.5
7.5
0.9
0.9
0.9
19
2.25
2.25
MAX
2.625
5.25
8.8
90
140
22
225
315
UNITS
V
V
mA
mA
µA
µA
mW
µW
µW
2Msps Sample Rate
2Msps Sample Rate (C
L
= 20pF)
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
, V
REF
> 2V)
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
, V
REF
> 2V, H-Grade)
2Msps Sample Rate
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
, V
REF
> 2V)
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
, V
REF
> 2V, H-Grade)
l
l
l
ADC TIMING CHARACTERISTICS
SYMBOL
f
SMPL
t
CONV
t
ACQ
t
CYC
t
CNVH
t
BUSYLH
t
CNVL
t
QUIET
t
SCK
t
SCKH
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
Time Between Conversions
CNV High Time
CNV↑ to BUSY Delay
Minimum Low Time for CNV
SCK Quiet Time from CNV↑
SCK Period
SCK High Time
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
278
165
500
20
TYP
MAX
2
322
UNITS
Msps
ns
ns
ns
ns
t
ACQ
= t
CYC
– t
CONV
– t
BUSYLH
(Note 10)
l
l
l
C
L
= 20pF
(Note 11)
(Note 10)
(Notes 11, 12)
l
l
l
l
l
13
20
10
10
4
ns
ns
ns
ns
ns
237016fa
4
LTC2370-16
ADC TIMING CHARACTERISTICS
SYMBOL
t
SCKL
t
SSDISCK
t
HSDISCK
t
SCKCH
t
DSDO
t
HSDO
t
DSDOBUSYL
t
EN
t
DIS
PARAMETER
SCK Low Time
SDI Setup Time From SCK↑
SDI Hold Time From SCK↑
SCK Period in Chain Mode
SDO Data Valid Delay from SCK↑
SDO Data Remains Valid Delay from SCK↑
SDO Data Valid Delay from BUSY↓
Bus Enable Time After RDL↓
Bus Relinquish Time After RDL↑
(Note 11)
(Note 11)
t
SCKCH
= t
SSDISCK
+ t
DSDO
(Note 11)
C
L
= 20pF (Note 11)
C
L
= 20pF (Note 10)
C
L
= 20pF (Note 10)
(Note 11)
(Note 11)
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
l
l
l
l
l
l
MIN
4
4
1
13.5
TYP
MAX
UNITS
ns
ns
ns
ns
9.5
1
5
16
13
ns
ns
ns
ns
ns
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 effect device
reliability and lifetime.
Note 2:
All voltage values are with respect to ground.
Note 3:
When these pin voltages are taken below ground or above REF or
OV
DD
, they will be clamped by internal diodes. This product can handle
input currents up to 100mA below ground or above REF or OV
DD
without
latch-up.
Note 4:
V
DD
= 2.5V, OV
DD
= 2.5V, REF = 5V, f
SMPL
= 2MHz.
Note 5:
Recommended operating conditions.
Note 6:
Integral nonlinearity 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 7:
Zero-scale error is the offset voltage measured from 0.5LSB
when the output code flickers between 0000 0000 0000 0000 and
0000 0000 0000 0001. Full-scale error is the deviation of the last code
transition from ideal and includes the effect of offset error.
Note 8:
All specifications in dB are referred to a full-scale 5V input with a
5V reference voltage.
Note 9:
f
SMPL
= 2MHz, I
REF
varies proportionately with sample rate.
Note 10:
Guaranteed by design, not subject to test.
Note 11:
Parameter tested and guaranteed at OV
DD
= 1.71V, OV
DD
= 2.5V
and OV
DD
= 5.25V.
Note 12:
t
SCK
of 10ns maximum allows a shift clock frequency up to
100MHz for rising capture.
0.8*OV
DD
0.2*OV
DD
t
DELAY
0.8*OV
DD
0.2*OV
DD
t
DELAY
0.8*OV
DD
0.2*OV
DD
50%
t
WIDTH
50%
237016 F01
Figure 1. Voltage Levels for Timing Specifications
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