参数资料
型号: LTC1857CG#PBF
厂商: Linear Technology
文件页数: 15/20页
文件大小: 0K
描述: IC ADC 8CH 12BIT 100KSPS 28-SSOP
标准包装: 47
系列: SoftSpan™
位数: 12
采样率(每秒): 100k
数据接口: MICROWIRE?,串行,SPI?
转换器数目: 1
功率耗散(最大): 40mW
电压电源: 模拟和数字
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
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
产品目录页面: 1347 (CN2011-ZH PDF)
LTC1857/LTC1858/LTC1859
4
185789fa
DYNAMIC ACCURACY
SYMBOL PARAMETER
CONDITIONS
LTC1857
LTC1858
LTC1859
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
S/(N + D) Signal-to-(Noise + Distortion) Ratio 1kHz Input Signal
74
83
87
dB
THD
Total Harmonic Distortion
1kHz Input Signal,
First Five Harmonics
–101
dB
Peak Harmonic or Spurious Noise
1kHz Input Signal
–103
dB
Channel-to-Channel Isolation
1kHz Input Signal
–120
dB
–3dB Input Bandwidth
1
MHz
Aperture Delay
–70
ns
Aperture Jitter
60
ps
Transient Response
Full-Scale Step
(Note 9)
444
μs
Overvoltage Recovery
(Note 13)
150
ns
The
l denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. MUXOUT connected to ADC inputs. (Notes 5, 12)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF Output Voltage
IOUT = 0
l
2.475
2.5
2.525
V
VREF Output Temperature Coefcient
IOUT = 0
±10
ppm/°C
VREF Output Impedance
–0.1mA ≤ IOUT ≤ 0.1mA
8
VREFCOMP Output Voltage
IOUT = 0
4.096
V
INTERNAL REFERENCE CHARACTERISTICS The l denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. (Note 5)
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. (Note 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
VDD = 5.25V
l
2.4
V
VIL
Low Level Input Voltage
VDD = 4.75V
l
0.8
V
IIN
Digital Input Current
VIN = 0V to VDD
l
±10
μA
CIN
Digital Input Capacitance
5pF
VOH
High Level Output Voltage
VDD = 4.75V, IO = –10μA, OVDD = VDD
VDD = 4.75V, IO = –200μA, OVDD = VDD
l
4
4.74
V
VOL
Low Level Output Voltage
VDD = 4.75V, IO = 160μA, OVDD = VDD
VDD = 4.75V, IO = 1.6mA, OVDD = VDD
l
0.05
0.10
0.4
V
IOZ
Hi-Z Output Leakage
VOUT = 0V to VDD, RD = High
l
±10
μA
COZ
Hi-Z Output Capacitance
RD = High
15
pF
ISOURCE
Output Source Current
VOUT = 0V
–10
mA
ISINK
Output Sink Current
VOUT = VDD
10
mA
POWER REQUIREMENTS The l denotes the specications which apply over the full operating temperature
range, otherwise specications are at TA = 25°C. (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Positive Supply Voltage
(Notes 9 and 10)
4.75
5
5.25
V
Positive Supply Current
Nap Mode
Sleep Mode
CONVST = 0V or 5V
l
8
5.5
8
13
8
15
mA
μA
Power Dissipation
Nap Mode
Sleep Mode
CONVST = 0V or 5V
40
27.5
40
mW
μW
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