Analog Input ....................(GND – 0.3V) to (V
CC
+ 0.3V)
Digital Input .................................... (GND – 0.3V) to 7V
Digital Output ................... (GND – 0.3V) to (V
CC
+ 0.3V)
Power Dissipation .............................................. 400mW
Operating Temperature Range
LTC1860C/LTC1861C ...............................0°C to 70°C
LTC1860I/LTC1861I .......................... – 40°C to 85°C
LTC1860H/LTC1861H.........................–40°C to 125°C
Storage Temperature Range...................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................300°C
PIN CONFIGURATION
LTC1860
V
REF
IN
+
IN¯
GND
1
2
3
4
TOP VIEW
8
7
6
5
V
CC
SCK
SDO
CONV
LTC1861
CONV
CH0
CH1
AGND
DGND
1
2
3
4
5
TOP VIEW
10
9
8
7
6
V
REF
V
CC
SCK
SDO
SDI
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 210°C/W
MS PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 210°C/W
LTC1860
V
REF
1
IN
+
2
IN
–
3
GND 4
TOP VIEW
8 V
CC
7 SCK
6 SDO
5 CONV
LTC1861
CONV 1
CH0 2
CH1 3
GND 4
TOP VIEW
8 V
CC
7 SCK
6 SDO
5 SDI
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 175°C/W
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 175°C/W
18601fa
2
LTC1860/LTC1861
ORDER INFORMATION
LEAD FREE FINISH
LTC1860CMS8#PBF
LTC1860IMS8#PBF
LTC1860HMS8#PBF
LTC1860CS8#PBF
LTC1860IS8#PBF
LTC1861CMS#PBF
LTC1861IMS#PBF
LTC1861HMS#PBF
LTC1861CS8#PBF
LTC1861IS8#PBF
LEAD BASED FINISH
LTC1860CMS8
LTC1860IMS8
LTC1860HMS8
LTC1860CS8
LTC1860IS8
LTC1861CMS
LTC1861IMS
LTC1861HMS
LTC1861CS8
LTC1861IS8
TAPE AND REEL
LTC1860CMS8#TRPBF
LTC1860IMS8#PBF
LTC1860HMS8#PBF
LTC1860CS8#PBF
LTC1860IS8#PBF
LTC1861CMS#PBF
LTC1861IMS#PBF
LTC1861HMS#PBF
LTC1861CS8#PBF
LTC1861IS8#PBF
TAPE AND REEL
LTC1860CMS8
LTC1860IMS8
LTC1860HMS8
LTC1860CS8
LTC1860IS8
LTC1861CMS
LTC1861IMS
LTC1861HMS
LTC1861CS8
LTC1861IS8
PART MARKING
LTWR
LTWS
LTWS
1860
1860I
LTWT
LTWU
LTWU
1861
1861I
PART MARKING
LTWR
LTWS
LTWS
1860
1860I
LTWT
LTWU
LTWU
1861
1861I
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic SO
8-Lead Plastic SO
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
8-Lead Plastic SO
8-Lead Plastic SO
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic SO
8-Lead Plastic SO
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
8-Lead Plastic SO
8-Lead Plastic SO
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
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
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
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.
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/
18601fa
3
LTC1860/LTC1861
CONVERTER AND MULTIPLEXER CHARACTERISTICS
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
CC
= 5V, V
REF
= 5V, f
SCK
= f
SCK(MAX)
as defined in Recommended Operating Conditions, unless otherwise noted.
SYMBOL
Resolution
No Missing Codes Resolution
INL
Transition Noise
Gain Error
Offset Error
Input Differential Voltage Range
Absolute Input Range
V
REF
Input Range
Analog Input Leakage Current
C
IN
Input Capacitance
LTC1860 SO-8 and MSOP LTC1861 MSOP
,
LTC1861 SO-8
V
IN
= IN
+
– IN
–
IN
+
Input
IN
–
Input
LTC1860 SO-8 and MSOP LTC1861 MSOP
,
(Note 4)
In Sample Mode
During Conversion
l
l
l
l
l
CONDITIONS
l
l
l
MIN
12
12
TYP
MAX
UNITS
Bits
Bits
(Note 3)
±1
0.07
±20
±2
±3
0
–0.05
–0.05
1
12
5
±5
±7
V
REF
V
CC
+ 0.05
V
CC
/2
V
CC
±1
LSB
LSB
RMS
mV
mV
mV
V
V
V
V
μA
pF
pF
DYNAMIC ACCURACY
T
A
= 25°C. V
CC
= 5V, f
SAMPLE
= 250kHz, unless otherwise specified.
SYMBOL
SNR
S/(N + D)
THD
PARAMETER
Signal-to-Noise Ratio
Signal-to-Noise Plus Distortion Ratio
Total Hamonic Distortion Up to 5th Harmonic
Full Power Bandwidth
Full Linear Bandwidth
S/(N + D) ≥ 68dB
100kHz Input Signal
100kHz Input Signal
CONDITIONS
MIN
TYP
72
71
77
20
125
MAX
UNITS
dB
dB
dB
MHz
kHz
DIGITAL AND DC ELECTRICAL CHARACTERISTICS
SYMBOL
V
IH
V
IL
I
IH
I
IL
V
OH
V
OL
PARAMETER
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
High Level Output Voltage
Low Level Output Voltage
CONDITIONS
V
CC
= 5.25V
V
CC
= 4.75V
V
IN
= V
CC
V
IN
= 0V
V
CC
= 4.75V, I
O
= 10μA
V
CC
= 4.75V, I
O
= 360μA
V
CC
= 4.75V, I
O
= 1.6mA
The
●
denotes specifications which apply
over the full operating temperature range, otherwise specifications are T
A
= 25°C. V
CC
= 5V, V
REF
= 5V, unless otherwise noted.
MIN
l
l
l
l
l
l
l
TYP
MAX
0.8
2.5
–2.5
UNITS
V
V
μA
μA
V
V
2.4
4.5
2.4
4.74
4.72
0.4
V
18601fa
4
LTC1860/LTC1861
DIGITAL AND DC ELECTRICAL CHARACTERISTICS
SYMBOL
I
OZ
I
SOURCE
I
SINK
I
REF
I
CC
PARAMETER
Hi-Z Output Leakage
Output Source Current
Output Sink Current
Reference Current (LTC1860 SO-8,
MSOP and LTC1861 MSOP)
Supply Current
CONDITIONS
CONV = V
CC
V
OUT
= 0V
V
OUT
= V
CC
CONV = V
CC
f
SMPL
= f
SMPL(MAX)
CONV = V
CC
After Conversion
CONV = V
CC
After Conversion, H-Grade
f
SMPL
= f
SMPL(MAX)
f
SMPL
= f
SMPL(MAX)
l
l
l
l
l
l
The
●
denotes specifications which apply
over the full operating temperature range, otherwise specifications are T
A
= 25°C. V
CC
= 5V, V
REF
= 5V, unless otherwise noted.
MIN
TYP
–25
20
0.001
0.05
0.001
0.001
0.85
1.25
3
0.1
3
5
1.3
MAX
±3
UNITS
μA
mA
mA
μA
mA
μA
μA
mA
mV
P
D
Power Dissipation
RECOMMENDED OPERATING CONDITIONS
the full operating temperature range, otherwise specifications are T
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