參數(shù)資料
型號(hào)： LTC1090ACJ
廠(chǎng)商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： ADC
英文描述： Single Chip 10-Bit Data Acquisition System
中文描述： 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP20
封裝： HERMETIC SEALED, CERDIP-20
文件頁(yè)數(shù)： 4/28頁(yè)
文件大?。?/td> 344K
代理商： LTC1090ACJ
4
LTC1090
1090fc
DIGITAL U
over the full operating temperature range, otherwise specification are T
A
= 25
°
C. (Note 3)
LTC1090/LTC1090A
TYP
SYMBOL
V
IH
V
IL
I
IH
I
IL
V
OH
PARAMETER
High Level lnput Voltage
Low Level Input Voltage
High Level lnput Current
Low Level Input Current
High Level Output Voltage
CONDITIONS
V
CC
= 5.25V
V
CC
= 4.75V
V
IN
= V
CC
V
IN
= 0V
V
CC
= 4.75V, l
O
= 10
μ
A
V
CC
= 4.75V, l
O
= 360
μ
A
V
CC
= 4.75V, l
O
= 1.6mA
V
OUT
= V
CC
, CS High
V
OUT
= 0V, CS High
V
OUT
= 0V
V
OUT
= V
CC
CS High, REF
+
Open
V
REF
= 5V
CS High, V
–
= –5V
MIN
2.0
MAX
UNITS
●
V
V
●
0.8
2.5
–2.5
●
μ
A
μ
A
V
V
V
μ
A
μ
A
mA
mA
mA
mA
μ
A
●
4.7
4.0
●
2.4
V
OL
I
OZ
Low Level Output Voltage
Hi-Z Output Leakage
●
0.4
3
–3
●
●
I
SOURCE
I
SINK
I
CC
I
REF
I
–
Output Source Current
Output Sink Current
Positive Supply Current
Reference Current
Negative Supply Current
–10
10
1.0
0.5
1
●
2.5
1.0
50
●
●
The
●
denotes specifications which apply
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All voltage values are with respect to ground with DGND, AGND
and REF
–
wired together (unless otherwise noted).
Note 3:
V
CC
= 5V, V
REF
+ = 5V, V
REF
– = 0V, V
–
= 0V for unipolar mode and
–5V for bipolar mode, ACLK = 2.0MHz, SCLK = 0.5MHz unless otherwise
specified.
Note 4:
These specs apply for both unipolar and bipolar modes. In bipolar
mode, one LSB is equal to the bipolar input span (2V
REF
) divided by 1024.
For example, when V
REF
= 5V, 1LSB (bipolar) = 2(5V)/1024 = 9.77mV.
Note 5:
Linearity error is specified between the actual end points of the
A/D transfer curve.
Note 6:
Total unadjusted error includes offset, gain, linearity, multiplexer
and hold step errors.
Note 7:
Two on-chip diodes are tied to each reference and analog input
which will conduct for reference or analog input voltages one diode drop
below V
–
or one diode drop above V
CC
. Be careful during testing at low
V
CC
levels (4.5V), as high level reference or analog inputs (5V) can cause
this input diode to conduct, especially at elevated temperatures, and cause
errors for inputs near full-scale. This spec allows 50mV forward bias of
either diode. This means that as long as the reference or analog input does
not exceed the supply voltage by more than 50mV, the output code will be
correct. To achieve an absolute 0V to 5V input voltage range will therefore
require a minimum supply voltage of 4.950V over initial tolerance,
temperature variations and loading.
Note 8:
Channel leakage current is measured after the channel selection.
Note 9:
To minimize errors caused by noise at the chip select input, the
internal circuitry waits for two ACLK falling edges after a chip select falling
edge is detected before responding to control input signals. Therefore, no
attempt should be made to clock an address in or data out until the
minimum chip select setup time has elapsed.
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LTC1090ACN 功能描述:IC DATA ACQUIS SYS 10BIT 20-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
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