参数资料
型号: LTC2499IUHF#PBF
厂商: Linear Technology
文件页数: 29/34页
文件大小: 0K
描述: IC ADC 24BIT DELTA SIG 38-QFN
标准包装: 52
位数: 24
采样率(每秒): 7.5
数据接口: I²C,串行
转换器数目: 1
功率耗散(最大): 480µW
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: 38-WFQFN 裸露焊盘
供应商设备封装: 38-QFN(5x7)
包装: 管件
输入数目和类型: 16 个单端,双极;8 个差分,双极
产品目录页面: 1348 (CN2011-ZH PDF)
配用: DC1012A-A-ND - BOARD DELTA SIGMA ADC LTC2499
LTC2499
2499fd
i2c inputs anD Digital outputs The
l
denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
analog input anD reFerence The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
l
0.7VCC
V
VIL
Low Level Input Voltage
l
0.3VCC
V
VIHA
Low Level Input Voltage for Address Pins CA0, CA1, CA2
and Pin fO
l
0.05VCC
V
VILA
High Level Input Voltage for Address Pins CA0, CA1, CA2
l
0.95VCC
V
RINH
Resistance from CA0, CA1, CA2 to VCC to Set Chip Address
Bit to 1
l
10
k
RINL
Resistance from CA0, CA1, CA2 to GND to Set Chip Address
Bit to 0
l
10
k
RINF
Resistance from CA0, CA1, CA2 to GND or VCC to Set Chip
Address Bit to Float
l
2
M
II
Digital Input Current
l
–10
10
A
VHYS
Hysteresis of Schmitt Trigger Inputs
(Note 5)
l
0.05VCC
V
VOL
Low Level Output Voltage (SDA)
I = 3mA
l
0.4
V
tOF
Output Fall Time VIH(MIN) to VIL(MAX)
Bus Load CB 10pF to
400pF (Note 14)
l
20 + 0.1CB
250
ns
IIN
Input Leakage
0.1VCC ≤ VIN ≤ VCC
l
1
A
CCAX
External Capacitative Load on Chip Address Pins (CA0, CA1,
CA2) for Valid Float
l
10
pF
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Supply Voltage
l
2.7
5.5
V
ICC
Supply Current
Conversion Current (Note 11)
Temperature Measurement (Note 11)
Sleep Mode (Note 11)
l
160
200
1
275
300
2
A
FS
Full Scale of the Differential Input (IN+ – IN)
l
0.5VREF
V
LSB
Least Significant Bit of the Output Code
l
FS/224
REF+
Absolute/Common Mode REF+ Voltage
l
0.1
VCC
V
REF
Absolute/Common Mode REFVoltage
l
GND
REF+ – 0.1V
V
VREF
Reference Voltage Range (REF+ – REF)
l
0.1
VCC
V
CS(IN+)
IN+ Sampling Capacitance
11
pF
CS(IN)
INSampling Capacitance
11
pF
CS(VREF)
VREF Sampling Capacitance
11
pF
IDC_LEAK(IN+)
IN+ DC Leakage Current
Sleep Mode, IN+ = GND
l
–10
1
10
nA
IDC_LEAK(IN–)
INDC Leakage Current
Sleep Mode, IN= GND
l
–10
1
10
nA
IDC_LEAK(REF+) REF+ DC Leakage Current
Sleep Mode, REF+ = VCC
l
–100
1
100
nA
IDC_LEAK(REF–) REFDC Leakage Current
Sleep Mode, REF= GND
l
–100
1
100
nA
tOPEN
MUX Break-Before-Make
50
ns
QIRR
MUX Off Isolation
VIN = 2VP-P DC to 1.8MHz
120
dB
power requireMents The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 3)
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