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参数资料
| 型号： | ADS7825UB/1KE4 |
| 厂商： | Texas Instruments |
| 文件页数： | 12/21页 |
| 文件大小： | 0K |
| 描述： | IC 16BIT 4-CHAN MUX ADC 28-SOIC |
| 产品培训模块： | Data Converter Basics |
| 标准包装： | 1,000 |
| 位数： | 16 |
| 采样率（每秒）： | 40k |
| 数据接口： | 串行，并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 50mW |
| 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： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个单端，双极 |
2
ADS7825
SPECIFICATIONS
ELECTRICAL
At TA = –40°C to +85°C, fS = 40kHz, VS1 = VS2 = VS = +5V ±5%, using external reference, CONTC = 0V, unless otherwise specified.
ADS7825P, U
ADS7825PB, UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
RESOLUTION
16
T(1)
Bits
ANALOG INPUT
Voltage Range
±10V
T
V
Impedance
Channel On or Off
45.7
T
k
Capacitance
35
T
pF
THROUGHPUT SPEED
Conversion Time
20
T
s
Acquisition Time
5
T
s
Multiplexer Settling Time
Includes Acquisition
5
T
s
Complete Cycle (Acquire and Convert)
25
T
s
Complete Cycle (Acquire and Convert)
CONTC = +5V
40
T
s
Throughput Rate
40
T
kHz
DC ACCURACY
Integral Linearity Error
±3
±2
LSB(2)
No Missing Codes
15
16
Transition Noise(3)
0.8
T
LSB
Full Scale Error(4)
Internal Reference
±0.5
±0.25
%
Full Scale Error Drift
Internal Reference
±7
±5
ppm/
°C
Full Scale Error(4)
±0.5
±0.25
%
Full Scale Error Drift
±2
T
ppm/
°C
Bipolar Zero Error
±10
T
mV
Bipolar Zero Error Drift
±2
T
ppm/
°C
Channel-to-Channel Mismatch
±0.1
%
Power Supply Sensitivity
+4.75 < VS < +5.25
±8
T
LSB
AC ACCURACY
Spurious-Free Dynamic Range(5)
fIN = 1kHz
90
T
dB
Total Harmonic Distortion
fIN = 1kHz
–90
T
dB
Signal-to-(Noise+Distortion)
fIN = 1kHz
83
86
dB
Signal-to-Noise
fIN = 1kHz
83
86
dB
Channel Separation(6)
fIN = 1kHz
100
120
TT
dB
–3dB Bandwidth
2
T
MHz
Useable Bandwidth(7)
90
T
kHz
SAMPLING DYNAMICS
Aperture Delay
40
T
ns
Transient Response(8)
FS Step
5
T
s
Overvoltage Recovery(9)
1
T
s
REFERENCE
Internal Reference Voltage
2.48
2.5
2.52
TT
T
V
Internal Reference Source Current
1
T
A
(Must use external buffer)
External Reference Voltage Range
2.3
2.5
2.7
TT
T
V
for Specified Linearity
External Reference Current Drain
VREF = +2.5V
100
T
A
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.8
TT
V
VIH
+2.4
VS +0.3V
TT
V
IIL
±10
T
A
IIH
±10
T
A
DIGITAL OUTPUTS
Data Format
Parallel in two bytes; Serial
T
Data Coding
Binary Two's Complement
T
VOL
ISINK = 1.6mA
+0.4
T
V
VOH
ISOURCE = 500A+4
T
V
Leakage Current
High-Z State, VOUT = 0V to VS
±5
T
A
Output Capacitance
High-Z State
15
T
pF
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| ADS7825UBE4 | 功能描述:模数转换器 - ADC 4 Channel 16-Bit Sampling CMOS RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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