5 FN7877.2 April 19, 2012 REFERENCE INPUT VREF VREF Input Range 0.1 2.5 V VREFLEAK Current Drain -100 4 100 A f
參數(shù)資料
型號(hào)： ISL267817IBZ-T7A
廠商： Intersil
文件頁數(shù)： 14/18頁
文件大小： 0K
描述： IC ADC 12BIT SRL/SPI 200K 8SOIC
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 12
采樣率（每秒）： 200k
數(shù)據(jù)接口： 串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 2.15mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型： 1 個(gè)差分，雙極
其它名稱： ISL267817IBZ-T7ADKR
ISL267817
5
FN7877.2
April 19, 2012
REFERENCE INPUT
VREF
VREF Input Range
0.1
2.5
V
VREFLEAK Current Drain
-100
4
100
A
fSAMPLE = 12.5kHz
-20
0.23
20
A
CS/SHDN = +VCC
-3
0.01
3
A
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
VIH
Input High Voltage
3
+VCC + 0.3
V
VIL
Input Low Voltage
-0.3
0.8
V
VOH
Output High Voltage
IOH = –250A
3.5
V
VOL
Output Low Voltage
IOL = 250A
0.4
V
Output Coding
Two’s Complement
ILEAK
Input Leakage Current
-1
1
A
CIN
Input Capacitance
10
pF
IOZ
Floating-State Output Current
-1
1
A
COUT
Floating-State Output Capacitance
5
pF
POWER REQUIREMENTS
VCC
Supply Voltage Range
4.75
5.25
V
ICC
Supply Current
430
800
A
fSAMPLE = 12.5kHz (Notes 8, 9)
38
A
fSAMPLE = 12.5kHz (Note 9)
223
A
Power Down Current
CS/SHDN = +VCC, fSAMPLE = 0Hz
0.5
3
A
TEMPERATURE RANGE
Specified Performance
-40
+85
°C
NOTES:
6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
7. The absolute voltage applied to each analog input must be between GND and +VCC to guarantee datasheet performance.
8. fDCLOCK = 3.2MHz, CS/SHDN = +VCC for 241 clock cycles out of every 256.
9. See “Power vs Throughput Rate” on page 13 for more information regarding lower sample rates.
Electrical Specifications +VCC = +5V, fDCLOCK =3.2MHz, fS = 200kSPS, VREF = 2.5V; VCM = VREF, Typical values are at TA = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 6) TYP
MAX
(Note 6)
UNITS
Timing Specifications Limits established by characterization and are not production tested. +VCC = 5V, fDCLOCK =3.2MHz, fS = 200kSPS,
VREF =2.5V; VCM = VREF. Boldface limits apply over the operating temperature range, -40°C to +85°C.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 6)
TYP
MAX
(Note 6)
UNITS
tSMPL
Analog Input Sample Time
1.5
2.0
Clk Cycles
tCONV
Conversion Time
12
Clk Cycles
fCYC
Throughput Rate
200
kHz
tCSD
CS/SHDN Falling Edge to DCLOCK Low
0
ns
tSUCS
CS/SHDN Falling Edge to DCLOCK Rising Edge
30
ns
thDO
DCLOCK Falling Edge to Current DOUT Not Valid
15
ns
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