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参数资料
型号： LM12458CIVX
厂商： NATIONAL SEMICONDUCTOR CORP
元件分类： 模拟信号调理
英文描述： SPECIALTY ANALOG CIRCUIT, PQCC44
封装： PLASTIC, LCC-44
文件页数： 32/36页
文件大小： 1195K
代理商： LM12458CIVX
Converter Characteristics (Notes 6, 7, 8, 9) (Continued)
The following specifications apply to the LM12454, LM12458, and LM12H458 for V
A+=VD+ = 5V, VREF+ = 5V, VREF = 0V,
12-bit + sign conversion mode, f
CLK = 8.0 MHz (LM12H458) or fCLK = 5.0 MHz (LM12454/8), RS =25
, source impedance for
V
REF+ and VREF
≤ 25, fully-differential input with fixed 2.5V common-mode voltage, and minimum acquisition time unless
otherwise specified. Boldface limits apply for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = 25C.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
DNL
8-Bit + Sign and “Watchdog” Mode
Differential Non-Linearity
±3/4
LSB (max)
8-Bit + Sign and “Watchdog” Mode
Zero Error
After Auto-Zero
±1/2
LSB (max)
8-Bit + Sign and “Watchdog” Full-Scale
Error
±1/2
LSB (max)
8-Bit + Sign and “Watchdog” Mode
DC Common Mode Error
±1/8
LSB
Multiplexer Channel-to-Channel
Matching
±0.05
LSB
V
IN+
Non-Inverting Input Range
GND
V
A+
V (min)
V (max)
V
IN
Inverting Input Range
GND
V
A+
V (min)
V (max)
V
IN+ VIN
Differential Input Voltage Range
V
A
+
V
A+
V (min)
V (max)
Common Mode Input Voltage Range
GND
V
A+
V (min)
V (max)
PSS
Power Supply
Sensitivity (Note
15)
Zero Error
V
A+=VD+=5V ±10%
±0.2
±1.75
LSB (max)
Full-Scale Error
V
REF+ = 4.5V, VREF = GND
±0.4
±2
LSB (max)
Linearity Error
±0.2
LSB
C
REF
V
REF+/VREF Input Capacitance
85
pF
C
IN
Selected Multiplexer Channel Input
Capacitance
75
pF
Converter AC Characteristics (Notes 6, 7, 8, 9)
The following specifications apply to the LM12454, LM12458, and LM12H458 for V
A+=VD+ = 5V, VREF+ = 5V, VREF = 0V,
12-bit + sign conversion mode, f
CLK = 8.0 MHz (LM12H458) or fCLK = 5.0 MHz (LM12454/8), RS =25
, source impedance for
V
REF+ and VREF
≤ 25, fully-differential input with fixed 2.5V common-mode voltage, and minimum acquisition time unless
otherwise specified. Boldface limits apply for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = 25C.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits (Note 11)
Units
Clock Duty Cycle
50
40
60
%
% (min)
% (max)
t
C
Conversion Time
13-Bit Resolution, Sequencer
State S5 (Figure 15)
44 (t
CLK)
44 (t
CLK)+50ns
(max)
9-Bit Resolution, Sequencer State
S5 (Figure 15)
21 (t
CLK)
21 (t
CLK)+50ns
(max)
t
A
Acquisition Time
Sequencer State S7 (Figure 15)
Built-in minimum for 13-Bits
9(t
CLK)
9(t
CLK)+50ns
(max)
Built-in minimum for 9-Bits and
“Watchdog” mode
2(t
CLK)
2(t
CLK)+50ns
(max)
t
Z
Auto-Zero Time
Sequencer State S2 (Figure 15)76 (t
CLK)
76 (t
CLK)+50ns
(max)
t
CAL
Full Calibration Time
Sequencer State S2 (Figure 15)
4944 (t
CLK)
4944 (t
CLK)+50ns
(max)
Throughput Rate (Note 18)
89
88
kHz (min)
LM12H458
142
140
kHz (min)
LM12454/LM12458/LM12H458
www.national.com
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相关代理商/技术参数
参数描述
LM12458CIVX/NOPB 功能描述:模数转换器 - ADC 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
LM12458CMEL/883 制造商:未知厂家 制造商全称:未知厂家 功能描述:Single-Ended Data Acquisition System
LM12458MEL/883 制造商:未知厂家 制造商全称:未知厂家 功能描述:Single-Ended Data Acquisition System
LM12458MW/883 制造商:未知厂家 制造商全称:未知厂家 功能描述:Single-Ended Data Acquisition System
LM1246 制造商:NSC 制造商全称:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
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