VIN Analog Input Range (Note 9) " />
參數(shù)資料
型號: LTC1851CFW
廠商: Linear Technology
文件頁數(shù): 22/28頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 1.25MSPS 48-TSSOP
標(biāo)準(zhǔn)包裝: 39
位數(shù): 12
采樣率(每秒): 1.25M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 50mW
電壓電源: 單電源
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 48-TFSOP(0.240",6.10mm 寬)
供應(yīng)商設(shè)備封裝: 48-TSSOP
包裝: 管件
輸入數(shù)目和類型: 8 個單端,單極;8 個單端,雙極;4 個差分,單極;4 個差分,雙極
產(chǎn)品目錄頁面: 1347 (CN2011-ZH PDF)
3
LTC1850/LTC1851
18501f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (Note 9)
4.75V
≤ VDD ≤ 5.25V
Unipolar, Gain = 1 (PGA = 1)
0 – REFCOMP
V
Unipolar, Gain = 2 (PGA = 0)
0 – REFCOMP/2
V
Bipolar, Gain = 1 (PGA = 1)
±REFCOMP/2
V
Bipolar, Gain = 2 (PGA = 0)
±REFCOMP/4
V
IIN
Analog Input Leakage Current
VIN > 0V < VDD, All Channels
q
±1
A
CIN
Analog Input Capacitance
Between Conversions (Gain = 1)
15
pF
Between Conversions (Gain = 2)
25
pF
During Conversions
5
pF
tACQ
Sample-and-Hold Acquisition Time
q
50
150
ns
tS(MUX)
Multiplexer Settling Time (Includes tACQ)
q
50
150
ns
tAP
Sample-and-Hold Aperture Delay Time
– 0.5
ns
tjitter
Sample-and-Hold Aperture Delay Time Jitter
2
psRMS
CMRR
Analog Input Common Mode Rejection Ratio
0V < (AIN– = AIN+) < 5V
60
dB
The q denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 5)
A ALOG I PUT
U
LTC1850
LTC1851
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
q
10
12
Bits
Integral Linearity Error
(Note 7)
q
±0.25 ±0.5
±0.35
±1LSB
Differential Linearity Error
q
±0.25
±0.5
±0.25
±1LSB
Offset Error (Bipolar and Unipolar)
(Note 8)
Gain = 1 (PGA = 1)
REFCOMP
≥ 2V
±2
±5LSB
Gain = 1 (PGA = 1)
REFCOMP
≥ 2V
q
±0.5
±2
±1
±7LSB
Gain = 2 (PGA = 0)
q
±1
±4
±2
±10
LSB
Offset Error Match
±0.5
±1LSB
Unipolar Gain Error
With External 4.096V Reference
Gain = 1 (PGA = 1)
Applied to REFCOMP (Note 12)
±2
±6LSB
Gain = 2 (PGA = 0)
±4
±10
LSB
Unipolar Gain Error Match
±0.5
±1LSB
Bipolar Gain Error
With External 4.096V Reference
Gain = 1 (PGA = 1)
Applied to REFCOMP (Note 12)
±2
±6LSB
Gain = 2 (PGA = 0)
±4
±10
LSB
Bipolar Gain Error Match
±0.5
±1LSB
Full-Scale Error Temperature Coefficient
15
ppm/
°C
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 5, 6)
CO VERTER CHARACTERISTICS
U
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