データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

LM12L458 データシート(PDF) 4 Page - Texas Instruments

部品番号 LM12L458
部品情報  12-Bit Sign Data Acquisition System with Self-Calibration
Download  38 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

LM12L458 データシート(HTML) 4 Page - Texas Instruments

  LM12L458 Datasheet HTML 1Page - Texas Instruments LM12L458 Datasheet HTML 2Page - Texas Instruments LM12L458 Datasheet HTML 3Page - Texas Instruments LM12L458 Datasheet HTML 4Page - Texas Instruments LM12L458 Datasheet HTML 5Page - Texas Instruments LM12L458 Datasheet HTML 6Page - Texas Instruments LM12L458 Datasheet HTML 7Page - Texas Instruments LM12L458 Datasheet HTML 8Page - Texas Instruments LM12L458 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 38 page
background image
LM12L458
SNAS085B – JULY 1999 – REVISED MARCH 2013
www.ti.com
Converter Characteristics
The following specifications apply for VA+ = VD+ = +3.3V, VREF+ = +2.5V, VREF− = 0V, 12-bit + sign conversion mode, fCLK =
6.0 MHz, RS = 25Ω, source impedance for VREF+ and VREF− ≤ 25Ω, fully-differential input with fixed 1.25V common-mode
voltage, and minimum acquisition time unless otherwise specified. Boldface limits apply for TA = TJ = TMIN to TMAX; all other
limits TA = TJ = 25°C
(1) (2) (3) (4)
Symbol
Parameter
Conditions
Typical(5)
Limits(6)
Units
ILE
Integral Linearity Error
After Auto-Cal(7)(8)
±1/2
±1
LSB (max)
TUE
Total Unadjusted Error
After Auto-Cal(7)
±1
LSB
Resolution with No Missing Codes
After Auto-Cal(7)
13
Bits (max)
DNL
Differential Non-Linearity
After Auto-Cal
±1
LSB (max)
Zero Error
After Auto-Cal(9) (8)
±1/4
±1
LSB (max)
Positive Full-Scale Error
After Auto-Cal (7)(8)
±1/2
±3
LSB (max)
Negative Full-Scale Error
After Auto-Cal (7)(8)
±1/2
±3
LSB (max)
DC Common Mode Error
See(10)
±2
±4
LSB (max)
8-Bit + Sign and “Watchdog” Mode Integral
ILE
See(7)
±1/2
LSB (max)
Linearity Error
8-Bit + Sign and “Watchdog” Mode Total
TUE
After Auto-Zero
±1/2
±3/4
LSB (max)
Unadjusted Error
8-Bit + Sign and “Watchdog” Mode
9
Bits (max)
Resolution with No Missing Codes
8-Bit + Sign and “Watchdog” Mode
DNL
±1
LSB (max)
Differential Non-Linearity
8-Bit + Sign and “Watchdog” Mode Zero
After Auto-Zero
±1/2
LSB (max)
Error
8-Bit + Sign and “Watchdog” Full-Scale
±1/2
LSB (max)
Error
8-Bit + Sign and “Watchdog” Mode DC
±1/8
LSB
Common Mode Error
Multiplexer Channel-to-Channel Matching
±0.05
LSB
GND
V (min)
VIN+
Non-Inverting Input Range
VA+
V (max)
GND
V (min)
VIN−
Inverting Input Range
VA+
V (max)
−VA
+
V (min)
VIN+ − VIN−
Differential Input Voltage Range
VA+
V (max)
GND
V (min)
Common Mode Input Voltage Range
VA+
V (max)
(1)
Two on-chip diodes are tied to each analog input through a series resistor, as shown below. Input voltage magnitude up to 5V above
VA+ or 5V below GND will not damage the LM12L458. However, errors in the A/D conversion can occur if these diodes are forward
biased by more than 100 mV. As an example, if VA+ is 3.0 VDC, full-scale input voltage must be =3.1 VDC to ensure accurate
conversions. See Figure 3
(2)
VA+ and VD+ must be connected together to the same power supply voltage and bypassed with separate capacitors at each V
+ pin to
assure conversion/comparison accuracy.
(3)
Accuracy is ensured when operating at fCLK = 6 MHz.
(4)
With the test condition for VREF = VREF+ - VREF-given as +2.5V, the 12-bit LSB is 305 µV and the 8-bit/“Watchdog” LSB is 4.88 mV.
(5)
Typical figures are at TA = 25°C and represent most likely parametric norm.
(6)
Limits are specified to AOQL (Average Output Quality Level).
(7)
Positive integral linearity error is defined as the deviation of the analog value, expressed in LSBs, from the straight line that passes
through positive full-scale and zero. For negative integral linearity error the straight line passes through negative full-scale and zero.
(See Figure 10 and Figure 11).
(8)
The LM12L458's self-calibration technique ensures linearity and offset errors as specified, but noise inherent in the self-calibration
process will result in a repeatability uncertainty of ±0.10 LSB.
(9)
Zero error is a measure of the deviation from the mid-scale voltage (a code of zero), expressed in LSB. It is the worst-case value of the
code transitions between -1 to 0 and 0 to +1 (see Figure 12).
(10) The DC common-mode error is measured with both inputs shorted together and driven from 0V to +2.5V. The measured value is
referred to the resulting output value when the inputs are driven with a 1.25V signal.
4
Submit Documentation Feedback
Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM12L458


同様の部品番号 - LM12L458

メーカー部品番号データシート部品情報
logo
National Semiconductor ...
LM12L458 NSC-LM12L458 Datasheet
695Kb / 36P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12L458 NSC-LM12L458 Datasheet
884Kb / 29P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12L458CIV NSC-LM12L458CIV Datasheet
695Kb / 36P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12L458CIV NSC-LM12L458CIV Datasheet
884Kb / 29P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12L458 NSC-LM12L458_06 Datasheet
884Kb / 29P
   12-Bit Sign Data Acquisition System with Self-Calibration
More results

同様の説明 - LM12L458

メーカー部品番号データシート部品情報
logo
National Semiconductor ...
LM12454 NSC-LM12454 Datasheet
991Kb / 43P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12454 NSC-LM12454_06 Datasheet
1Mb / 36P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12L458 NSC-LM12L458 Datasheet
695Kb / 36P
   12-Bit Sign Data Acquisition System with Self-Calibration
LM12L458 NSC-LM12L458_06 Datasheet
884Kb / 29P
   12-Bit Sign Data Acquisition System with Self-Calibration
logo
Texas Instruments
LM12454 TI1-LM12454_14 Datasheet
1Mb / 45P
[Old version datasheet]   LM12454/LM12458/LM12H458 12-Bit Sign Data Acquisition System with Self-Calibration
LM12454 TI1-LM12454 Datasheet
1Mb / 43P
[Old version datasheet]   12-Bit Sign Data Acquisition System
logo
National Semiconductor ...
LM12434 NSC-LM12434 Datasheet
1Mb / 80P
   Sign Data Acquisition System with Serial I/O and Self-Calibration
logo
Micro Linear Corporatio...
ML2200 MICRO-LINEAR-ML2200 Datasheet
1Mb / 28P
   12-Bit Plus Sign Data Acquisition Peripheral
logo
Sipex Corporation
SP8121 SIPEX-SP8121 Datasheet
168Kb / 13P
   Monolithic, 12-Bit Data Acquisition System
SP8481 SIPEX-SP8481 Datasheet
208Kb / 12P
   Monolithic, 12-Bit Data Acquisition System
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com