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ADC08062BIN の電気的特性と機能

ADC08062BINのメーカーはNational Semiconductorです、この部品の機能は「500 ns A/D Converter with S/H Function and Input Multiplexer」です。


製品の詳細 ( Datasheet PDF )

部品番号 ADC08062BIN
部品説明 500 ns A/D Converter with S/H Function and Input Multiplexer
メーカ National Semiconductor
ロゴ National Semiconductor ロゴ 




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ADC08062BIN Datasheet, ADC08062BIN PDF,ピン配置, 機能
June 1999
ADC08061/ADC08062
500 ns A/D Converter with S/H Function and Input
Multiplexer
General Description
Using a patented multi-step A/D conversion technique, the
8-bit ADC08061 and ADC08062 CMOS ADCs offer 500 ns
(typ) conversion time, internal sample-and-hold (S/H), and
dissipate only 125 mW of power. The ADC08062 has a
two-channel multiplexer. The ADC08061/2 family performs
an 8-bit conversion using a 2-bit voltage estimator that gen-
erates the 2 MSBs and two low-resolution (3-bit) flashes that
generate the 6 LSBs.
Input track-and-hold circuitry eliminates the need for an ex-
ternal sample-and-hold. The ADC08061/2 family performs
accurate conversions of full-scale input signals that have a
frequency range of DC to 300 kHz (full-power bandwidth)
without need of an external S/H.
The digital interface has been designed to ease connection
to microprocessors and allows the parts to be I/O or memory
mapped.
Key Specifications
n Resolution
n Conversion Time
n Full Power Bandwidth
n Throughput rate
n Power Dissipation
n Total Unadjusted Error
8 bits
560 ns max (WR-RD Mode)
300 kHz
1.5 MHz
100 mW max
±12 LSB and ±1 LSB
Features
n 1 or 2 input channels
n No external clock required
n Analog input voltage range from GND to V+
n Overflow output available for cascading (ADC08061)
n ADC08061 pin-compatible with the industry standard
ADC0820
Applications
n Mobile telecommunications
n Hard disk drives
n Instrumentation
n High-speed data acquisition systems
Block Diagram
* ADC08061
** ADC08062
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS011086
DS011086-1
www.national.com

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ADC08062BIN pdf, ピン配列
Pin Description (Continued)
A0 This logic input is used to select one of the
ADC08062’s input multiplexer channels. A chan-
nel is selected as shown in the table below.
ADC08062
Channel
A0
0 VIN1
1 VIN2
V+ Positive power supply voltage input. Nominal operating
supply voltage is +5V. The supply pin should be by-
passed with a 10 µF bead tantalum in parallel with a 0.1
ceramic capacitor. Lead length should be as short as
possible.
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3Pages


ADC08062BIN 電子部品, 半導体
DC Electrical Characteristics (Continued)
The following specifications apply
all other limits TA = TJ = 25˚C.
for
V+
=
5V
unless
otherwise
specified.
Boldface
limits
apply
for
TA
=
TJ
=
TMIN
to
TMAX;
Symbol
Parameter
Conditions
Typical
(Note 7)
Limits
(Note 8)
Units
(Limit)
VIL
Logic “0” Input Voltage
V+ = 4.5V
Mode Pin
1.5 V (max)
ADC08062
CS, WR, RD, A0 Pins
0.7 V (max)
ADC08061
CS, WR, RD Pins
0.8 V (max)
IIH
Logic “1” Input Current
VIH = 5V
CS, RD, A0 Pins
0.005
1 µA (max)
WR Pin
0.1 3 µA (max)
Mode Pin
50 200 µA (max)
IIL
Logic “0” Input Current
VIL = 0V
CS, RD, WR, A0 Pins
−0.005
µA (max)
Mode Pin
−2
VOH
Logic “1” Output Voltage
V+ = 4.75V
IOUT = −360 µA
DB0–DB7, OFL, INT
2.4 V (min)
IOUT = −10 µA
DB0–DB7, OFL, INT
4.5 V (min)
VOL
Logic “0” Output Voltage
V+ = 4.75V
IOUT = 1.6 mA
DB0–DB7, OFL, INT, RDY
0.4 V (max)
IO
TRI-STATE Output Current
VOUT = 5.0V
DB0–DB7, RDY
0.1 3 µA (max)
VOUT = 0V
DB0–DB7, RDY
−0.1
−3 µA (max)
ISOURCE
Output Source Current
VOUT = 0V
DB0–DB7, OFL, INT
−26 −6 mA (min)
ISINK
Output Sink Current
VOUT = 5V
DB0–DB7, OFL, INT, RDY
24
7 mA (min)
IC Supply Current
CS = WR = RD = 0
11.5
20 mA (max)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified operating ratings. Operating Ratings indicate conditions for which the device is functional, but do not guarantee performance limits.
For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some per-
formance characteristics may degrade when the device is not operated under the listed test conditions.
Note 2: All voltages are measured with respect to the GND pin, unless otherwise specified.
Note 3: When the input voltage (VIN) at any pin exceeds the power supply voltage (VIN < GND or VIN > V+), the absolute value of the current at that pin should be
limited to 5 mA or less. The 20 mA package input current specification limits the number of pins that can exceed the power supply boundaries with a 5 mA current
limit to four.
Note 4: The power dissipation of this device under normal operation should never exceed 875 mW (Quiescent Power Dissipation + the loads on the digital outputs).
Caution should be taken not to exceed absolute maximum power rating when the device is operating in a severe fault condition (e.g., when any input or output ex-
ceeds the power supply). The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX (maximum junction temperature), θJA
(package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJMAX
− TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. The table below details TJMAX and θJA for the various packages and versions
of the ADC08061/2.
Part Number
ADC08061/2BIN
ADC08061/2CIWM
TJMAX
105
105
θJA
51
85
Note 5: See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices.
Note 6: Human body model, 100 pF discharged through a 1.5 kresistor.
Note 7: Typicals are at 25˚C and represent most likely parametric norm.
www.national.com
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部品番号部品説明メーカ
ADC08062BIN

500 ns A/D Converter with S/H Function and Input Multiplexer

National Semiconductor
National Semiconductor


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