12-/16-bit A/D converters with serial I/O, and an internal
reference. The ADCs typically draw only 1.3mA from a
single 5V supply.
The 8-channel input multiplexer can be configured for
either single-ended or differential inputs and unipolar
or bipolar conversions (or combinations thereof). The
automatic nap and sleep modes benefit power sensitive
applications.
The LTC1867’s DC performance is outstanding with a
±2LSB INL specification and no missing codes over tem-
perature. The signal-to-noise ratio (SNR) for the LTC1867
is typically 89dB, with the internal reference.
Housed in a compact, narrow 16-pin SSOP package, the
LTC1863/LTC1867 can be used in space-sensitive as well
as low-power applications.
All registered trademarks and trademarks are the property of their respective owners.
n
n
n
n
n
n
n
n
Sample Rate: 200ksps
16-Bit No Missing Codes and ±2LSB Max INL
8-Channel Multiplexer with:
n
Single-Ended or Differential Inputs and
n
Unipolar or Bipolar Conversion Modes
SPI/MICROWIRE Serial I/O
Signal-to-Noise Ratio: 89dB
Single 5V Operation
On-Chip or External Reference
Low Power: 1.3mA at 200ksps, 0.76mA at 100ksps
Sleep Mode
Automatic Nap Mode Between Conversions
16-Pin Narrow SSOP Package
APPLICATIONS
n
n
n
n
n
Industrial Process Control
High Speed Data Acquisition
Battery Operated Systems
Multiplexed Data Acquisition Systems
Imaging Systems
BLOCK DIAGRAM
Integral Nonlinearity vs Output Code
(LTC1867)
2.0
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
1
2
3
4
5
6
7
8
LTC1863/LTC1867 16
15
14
13
+
12-/16-BIT
SERIAL
200ksps
12
PORT
–
ADC
11
10
INTERNAL
2.5V REF
9
18637 BD
INL (LSB)
ANALOG
INPUT
MUX
V
DD
GND
SDI
SDO
SCK
CS/CONV
V
REF
1.5
1.0
0.5
0
–0.5
–1.0
REFCOMP
–1.5
–2.0
0
16384
32768
49152
OUTPUT CODE
65536
18637 GO1
18637fd
For more information
www.linear.com/LTC1863
1
LTC1863/LTC1867
ABSOLUTE MAXIMUM RATINGS
(Note 1, 2)
PIN CONFIGURATION
TOP VIEW
CH0 1
CH1 2
CH2 3
CH3 4
CH4 5
CH5 6
CH6 7
CH7/COM 8
16 V
DD
15 GND
14 SDI
13 SDO
12 SCK
11
CS/CONV
10 V
REF
9
REFCOMP
Supply Voltage (V
DD
) ................................... –0.3V to 6V
Analog Input Voltage
CH0-CH7/COM (Note 3) ...........– 0.3V to (V
DD
+ 0.3V)
V
REF
, REFCOMP (Note 4) ......... –0.3V to (V
DD
+ 0.3V)
Digital Input Voltage (SDI, SCK,
CS/CONV)
(Note 4) ................................................. –0.3V to 10V
Digital Output Voltage (SDO) ....... –0.3V to (V
DD
+ 0.3V)
Power Dissipation .............................................. 500mW
Operating Temperature Range
LTC1863C/LTC1867C/LTC1867AC ............ 0°C to 70°C
LTC1863I/LTC1867I/LTC1867AI ...........–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
T
JMAX
= 110°C,
θ
JA
= 95°C/W
ORDER INFORMATION
LEAD FREE FINISH
LTC1863CGN#PBF
LTC1863IGN#PBF
LTC1867CGN#PBF
LTC1867IGN#PBF
LTC1867ACGN#PBF
LTC1867AIGN #PBF
TAPE AND REEL
LTC1863CGN#TRPBF
LTC1863IGN#TRPBF
LTC1867CGN#TRPBF
LTC1867IGN#TRPBF
LTC1867ACGN#TRPBF
LTC1867AIGN#TRPBF
http://www.linear.com/product/LTC1863#orderinfo
PART MARKING*
1863
1863
1867
1867
1867
1867
PACKAGE DESCRIPTION
16-Lead Narrow Plastic SSOP
16-Lead Narrow Plastic SSOP
16-Lead Narrow Plastic SSOP
16-Lead Narrow Plastic SSOP
16-Lead Narrow Plastic SSOP
16-Lead Narrow Plastic SSOP
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°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/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
temperature range, otherwise specifications are at T
A
= 25°C. With external reference (Notes 5, 6)
LTC1863
PARAMETER
Resolution
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Transition Noise
Offset Error
Offset Error Match
Unipolar (Note 8)
Bipolar
Unipolar
Bipolar
l
l
CONVERTER CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating
LTC1867
MAX
MIN
16
15
±1
±1
±1
0.1
±3
±4
±1
±1
–2
0.74
±32
±64
±2
±2
±4
±4
3
–1
0.74
±32
±64
±2
±2
TYP
MAX
MIN
16
16
±2
±2.5
1.75
LTC1867A
TYP
MAX
UNITS
Bits
Bits
LSB
LSB
LSB
LSB
RMS
LSB
LSB
LSB
LSB
18637fd
CONDITIONS
l
l
MIN
12
12
TYP
Unipolar (Note 7)
Bipolar
l
l
l
2
For more information
www.linear.com/LTC1863
LTC1863/LTC1867
temperature range, otherwise specifications are at T
A
= 25°C. With external reference (Notes 5, 6)
LTC1863
PARAMETER
Offset Error Drift
Gain Error
Gain Error Match
Gain Error Tempco
Power Supply Sensitivity
Internal Reference
External Reference
V
DD
= 4.75V – 5.25V
±15
±2.7
±1
Unipolar
Bipolar
CONDITIONS
MIN
TYP
±0.5
±6
±6
±1
±15
±2.7
±5
MAX
MIN
LTC1867
TYP
±0.5
±96
±96
±4
±15
±2.7
±5
MAX
MIN
CONVERTER CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating
LTC1867A
TYP
±0.5
±64
±64
±2
MAX
UNITS
ppm/°C
LSB
LSB
LSB
ppm/°C
ppm/°C
LSB
DYNAMIC ACCURACY
SYMBOL
SNR
S/(N+D)
THD
PARAMETER
Signal-to-Noise Ratio
Signal-to-(Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Channel-to-Channel Isolation
Full Power Bandwidth
(Note 5)
LTC1863
CONDITIONS
1kHz Input Signal
1kHz Input Signal
1kHz Input Signal, Up to 5th Harmonic
1kHz Input Signal
100kHz Input Signal
–3dB Point
MIN
TYP
73.6
73.5
–94.5
–94.5
–100
1.25
MAX
LTC1867/LTC1867A
MIN
TYP
89
88
–95
–95
–117
1.25
MAX
UNITS
dB
dB
dB
dB
dB
MHz
ANALOG INPUT
SYMBOL
PARAMETER
Analog Input Range
C
IN
t
ACQ
The
l
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 5)
LTC1863/LTC1867/LTC1867A
CONDITIONS
Unipolar Mode (Note 9)
Bipolar Mode
Between Conversions (Sample Mode)
During Conversions (Hold Mode)
l
l
l
MIN
TYP
0-4.096
±2.048
32
4
MAX
UNITS
V
V
pF
pF
µs
Analog Input Capacitance for CH0 to
CH7/COM
Sample-and-Hold Acquisition Time
Input Leakage Current
1.5
1.1
±1
On Channels, CHX = 0V or V
DD
l
µA
INTERNAL REFERENCE CHARACTERISTICS
PARAMETER
V
REF
Output Voltage
V
REF
Output Tempco
V
REF
Line Regulation
V
REF
Output Resistance
REFCOMP Output Voltage
CONDITIONS
I
OUT
= 0
I
OUT
= 0
4.75V ≤ V
DD
≤ 5.25V
I
OUT
≤0.1mA
I
OUT
= 0
(Note 5)
LTC1863/LTC1867/LTC1867A
MIN
2.48
TYP
2.5
±15
0.43
6
4.096
MAX
2.52
UNITS
V
ppm/°C
mV/V
kΩ
V
18637fd
For more information
www.linear.com/LTC1863
3
LTC1863/LTC1867
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
LTC1863/LTC1867/LTC1867A
SYMBOL
V
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
SOURCE
I
SINK
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage (SDO)
Low Level Output Voltage (SDO)
Output Source Current
Output Sink Current
Hi-Z Output Leakage
Hi-Z Output Capacitance
Data Format
V
DD
= 4.75V, I
O
= –10µA
V
DD
= 4.75V, I
O
= –200µA
V
DD
= 4.75V, I
O
= 160µA
V
DD
= 4.75V, I
O
= 1.6mA
SDO = 0V
SDO = V
DD
CS/CONV
= High, SDO = 0V or V
DD
CS/CONV
= High (Note 10)
Unipolar
Bipolar
l
l
l
l
DIGITAL INPUTS AND DIGITAL OUTPUTS
CONDITIONS
V
DD
= 5.25V
V
DD
= 4.75V
V
IN
= 0V to V
DD
MIN
l
l
l
TYP
MAX
0.8
±10
UNITS
V
V
µA
pF
V
V
2.4
2
4
4.75
4.74
0.05
0.1
–32
19
±10
15
Straight Binary
Two’s Complement
0.4
V
V
mA
mA
µA
pF
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 5)
LTC1863/LTC1867/LTC1867A
SYMBOL
V
DD
I
DD
P
DISS
PARAMETER
Supply Voltage
Supply Current
CONDITIONS
(Note 9)
f
SAMPLE
= 200ksps
NAP Mode
SLEEP Mode
l
l
l
POWER REQUIREMENTS
MIN
4.75
TYP
1.3
150
0.2
6.5
MAX
5.25
1.8
3
9
UNITS
V
mA
µA
µA
mW
Power Dissipation
4
18637fd
For more information
www.linear.com/LTC1863
LTC1863/LTC1867
TIMING CHARACTERISTICS
SYMBOL
f
SAMPLE
t
CONV
t
ACQ
f
SCK
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
SCK Frequency
CS/CONV
High Time
SDO Valid After SCK↓
SDO Valid Hold Time After SCK↓
SDO Valid After
CS/CONV↓
SDI Setup Time Before SCK↑
SDI Hold Time After SCK↑
SLEEP Mode Wake-Up Time
Bus Relinquish Time After
CS/CONV↑
C
REFCOMP
= 10µF, C
VREF
= 2.2µF
C
L
= 25pF
l
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 5)
LTC1863/LTC1867/LTC1867A
CONDITIONS
l
l
l
MIN
200
TYP
3
MAX
3.5
40
UNITS
kHz
µs
µs
MHz
ns
ns
ns
ns
ns
ns
ms
1.5
40
5
15
10
1.1
100
13
11
10
–6
4
60
20
40
30
22
Short
CS/CONV
Pulse Mode
C
L
= 25pF (Note 11)
C
L
= 25pF
C
L
= 25pF
l
l
l
l
l
l
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 affect device
reliability and lifetime
Note 2:
All voltage values are with respect to GND (unless otherwise noted).
Note 3:
When these pin voltages are taken below GND or above V
DD
, they
will be clamped by internal diodes. This product can handle input currents
up to 100mA without latchup.
Note 4:
When these pin voltages are taken below GND, they will be
clamped by internal diodes. This product can handle input currents up to
100mA below GND without latchup. These pins are not clamped to V
DD
.
Note 5:
V
DD
= 5V, f
SAMPLE
= 200ksps at 25°C, t
r
= t
f
= 5ns and
V
IN
– = 2.5V for bipolar mode unless otherwise specified.
Note 6:
Linearity, offset and gain error specifications apply for both
unipolar and bipolar modes. The INL and DNL are tested in bipolar mode.
Note 7:
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 8:
Unipolar offset is the offset voltage measured from +1/2LSB
when the output code flickers between 0000 0000 0000 0000 and
0000 0000 0000 0001 for LTC1867 and between 0000 0000 0000 and
0000 0000 0001 for LTC1863. Bipolar offset is the offset voltage measured
from –1/2LSB when output code flickers between 0000 0000 0000 0000
and 1111 1111 1111 1111 for LTC1867, and between
0000 0000 0000 and 1111 1111 1111 for LTC1863.
Note 9:
Recommended operating conditions. The input range of ±2.048V
In late October, Japanese clients will have a centralized interview. We are urgently recruiting software development supervisors to Japan. Accommodation and transportation expenses will be fully borne...
Group purchase of real6410 standard development board, for details of the board, please see [url]https://bbs.eeworld.com.cn/thread-298330-1-1.html[/url]. After my negotiations with real6410 engineers ...
To be honest, I am excited again. These expansion boards are not complicated, but they are very useful!I am very upset that our section does not have its own expansion board.Basic parameters:JD-T1800 ...
Reposted from: [url=http://sports.qq.com/a/20131105/002864.htm]http://sports.qq.com/a/20131105/002864.htm[/url] [b]Ji Ke Sou spent 2 billion yuan but got poor results and was shut down. Deng Yaping wa...
Recently, the results of the 2018 German Red Dot Design Award were announced. GoodWe, a company located in Suzhou High-tech Zone, stood out among thousands of outstanding design products from 5...[Details]
For 80,000
ZTE
(000063.SZ) employees and more Chinese ICT (information and communication technology) industry practitioners, the news from across the ocean on the evening of April 16 kept t...[Details]
In the actual project development process, we often need to get the running time of a section of code. The usual method is to use an oscilloscope to measure it. This blog post will use SysTick to acc...[Details]
CMSIS Driver has similar API functions and similar calling methods. It is a further encapsulation based on the ST HAL library. It is much more convenient and simpler to use and configure than the ST ...[Details]
The day before yesterday, I learned about STM's Systick and found it quite useful for precise timing. When I used CVAVR before, I found that the delay.h in it was very useful. So, I used STM32's...[Details]
When the domestic discussion about "ZTE being banned" was hot, Alibaba officially announced the acquisition of chip supplier
Zhongtianwei
, but the investment amount was not disclosed. At t...[Details]
introduction STM32 has many registers, which are difficult to remember, so the official packaged two sets of library functions. One is the standard library, but the official has not updated it on F7,...[Details]
Timing and protocol are two key points in digital system debugging, and they are also where logic analyzers can play their most valuable role. How can we use a logic analyzer to quickly complete wiri...[Details]
The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
In the Huaxing Optoelectronics LCD panel
factory
located in Guangming New District, Shenzhen
, apart from a few people repairing machines, it is often difficult to see other people. Here, ev...[Details]
This program is used in the development board to generate sounds of different frequencies. The overall program is relatively simple, mainly using two timers. The code and my comments are as follows. ...[Details]
At the beginning of the new year of 2018, after the release of the national photovoltaic policy, we found that the state’s support for village-level poverty alleviation power stations has not weake...[Details]
On the eve of 5G
commercialization,
ZTE
has established and adhered to
the
5G
pioneer strategy, focusing on
5G
end-to-end solutions, and investing in standard setting, ...[Details]
As a leading company in automotive semiconductors, Freescale and Khronos Group have jointly launched an automotive multimedia embedded microprocessor i.MX35 with an integrated OpenVG hardware acceler...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
