参数资料
型号: LTC1853IFW
厂商: Linear Technology
文件页数: 18/24页
文件大小: 0K
描述: IC A/D CONV 8CH 12BIT 48-TSSOP
标准包装: 39
位数: 12
采样率(每秒): 400k
数据接口: 并联
转换器数目: 1
功率耗散(最大): 15mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-TFSOP(0.240",6.10mm 宽)
供应商设备封装: 48-TSSOP
包装: 管件
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
LTC1852/LTC1853
3
18523fa
CONVERTER CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VDD = 2.7V to 5.5V, REFCOMP < VDD (Notes 5,6)
PARAMETER
CONDITIONS
MIN
LTC1852
TYP
MAX
MIN
LTC1853
TYP
MAX
UNITS
Resolution (No Missing Codes)
l
10
12
Bits
Integral Linearity Error
(Note 7)
l
±0.25
±1
±0.35
±1
LSB
Differential Linearity Error
l
±0.25
±1
±0.25
±1
LSB
Offset Error (Bipolar and Unipolar)
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
(Note 8)
REFCOMP ≥ 2V
l
±0.5
±1
±2
±4
±1
±2
±6
±12
LSB
Offset Error Match (Bipolar and Unipolar)
±0.5
±1
LSB
Unipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 4.096V Reference
Applied to REFCOMP (Note 12)
VDD = 4.75V to 5.25V, fS ≤ 400kHz
±2
±4
±8
LSB
Unipolar Gain Error Match
±0.5
±1
LSB
Bipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 4.096V Reference
Applied to REFCOMP (Note 12)
VDD = 4.75V to 5.25V, fS ≤ 400kHz
±2
±4
±8
LSB
Bipolar Gain Error Match
±0.5
±1
LSB
Unipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 2.5V Reference
Applied to REFCOMP
VDD = 2.7V to 5.5V, fS ≤ 250kHz
l
±1
±2
±3
±6
±1.5
±3
±8
±16
LSB
Bipolar Gain Error
Gain = 1 (PGA = 1)
Gain = 2 (PGA = 0)
With External 2.5V Reference
Applied to REFCOMP
VDD = 2.7V to 5.5V, fS ≤ 250kHz
l
±1
±2
±3
±6
±1.5
±3
±8
±16
LSB
Full-Scale Error Temperature Coefcient
15
ppm/°C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (Note 9)
Unipolar, Gain = 1 (PGA = 1)
Unipolar, Gain = 2 (PGA = 0)
Bipolar, Gain = 1 (PGA = 1)
Bipolar, Gain = 2 (PGA = 0)
2.7V ≤ VDD ≤ 5.5V, REFCOMP ≤ VDD
0 – REFCOMP
0 – REFCOMP/2
± REFCOMP/2
±REFCOMP/4
V
IIN
Analog Input Leakage Current
l
±1
μA
CIN
Analog Input Capacitance
Between Conversions (Gain = 1)
Between Conversions (Gain = 2)
During Conversions
15
25
5
pF
tACQ
Sample-and-Hold Acquisition Time
50
150
ns
tS(MUX)
Multiplexer Settling Time (Includes tACQ)
50
150
ns
tAP
Sample-and-Hold Aperture Delay Time
VDD = 5V
– 0.5
ns
tjitter
Sample-and-Hold Aperture Delay Time Jitter
VDD = 5V
2
psRMS
CMRR
Analog Input Common Mode Rejection Ratio
60
dB
ANALOG INPUT The l denotes the specications which apply over the full operating temperature range, otherwise
specications are at TA = 25°C. (Notes 5)
DYNAMIC ACCURACY T
A = 25°C. (Notes 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
S/(N + D)
Signal-to-Noise Plus Distortion Ratio
40kHz Input Signal
72.5
dB
THD
Total Harmonic Distortion
40kHz Input Signal, First 5 Harmonics
–80
dB
SFDR
Spurious Free Dynamic Range
40kHz Input Signal
–85
dB
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