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What is ADC08061?

This electronic component, produced by the manufacturer "National Semiconductor", performs the same function as "500 ns A/D Converter with S/H Function and Input Multiplexer".


ADC08061 Datasheet PDF - National Semiconductor

Part Number ADC08061
Description 500 ns A/D Converter with S/H Function and Input Multiplexer
Manufacturers National Semiconductor 
Logo National Semiconductor Logo 


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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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ADC08061 equivalent
AC Electrical Characteristics (Continued)
The following specifications
face limits apply for TA =
apply for V+
TJ = TMIN to
= 5V, tr =
TMAX; all
tf = 10 ns,
other limits
VTRAE=F+T=J
=5V2,5V˚CR.EF−
=
0V
unless
otherwise
specified.
Bold-
Symbol
Parameter
Condition
Typical
(Note 7)
Limits
(Note 8)
Units
(Limit)
tRDW
tCONV
tCRD
tACCO
RD Width
WR -RD Mode Conversion Time
(tWR + tRD + tACC1)
RD Mode Conversion Time
Access Time (Delay from Falling
Edge of RD to Output Valid)
Mode Pin to GND; (Figure 5)
Mode Pin to V+; (Figure 2)
Mode Pin to GND; (Figure 1)
CL 100 pF
Mode Pin to GND; (Figure 1)
200
400
500
655
640
250 ns (min)
400 ns (max)
560 ns (max)
900 ns (max)
900 ns (max)
tACC1
Access Time (Delay from
Falling Edge
of RD to Output Valid)
CL 10 pF
CL = 100 pF
Mode Pin to V+, tRD tINTL
(Figure 2)
45
50
110 ns (max)
tACC2
t0H
Access Time (Delay from
Falling Edge
of RD to Output Valid)
TRI-STATE® Control (Delay from
Rising Edge of RD to HI-Z State)
CL 10 pF
CL = 100 pF
tRD > tINTL; (Figures 3, 4)
RL = 3 k, CL = 10 pF
25
30
30
55 ns (max)
60 ns (max)
t1H TRI-STATE Control (Delay from
RL = 3 k, CL = 10 pF
30
60 ns (max)
Rising Edge of RD to HI-Z State)
tINTL
tINTH
Delay from Rising Edge of
WR to Falling Edge of INT
Delay from Rising Edge of
RD to Rising Edge of INT
(Figures 3, 4)
Mode Pin = V+, CL = 50 pF
CL = 50 pF; (Figures 1, 2, 3, 4)
2b, and 4 )
520
50
690 ns (max)
95 ns (max)
tINTH
Delay from Rising Edge of
CL = 50 pF; (Figure 4)
45
95 ns (max)
WR to Rising Edge of INT
tRDY Delay from CS to RDY
tID Delay from INT to Output Valid
tRI Delay from RD to INT
Mode Pin = 0V, CL = 50 pF,
RL = 3 k(Figure 1)
RL = 3 k, CL = 100 pF;
(Figure 4)
Mode Pin = V+, tRD tINTL;
(Figure 3)
25
0
60
45 ns (max)
15 ns (max)
115 ns (max)
tN Time between End of RD
and Start of New Conversion
(Figures 1, 2, 3, 4, 5)
50 50 ns (min)
tAH
tAS
tCSS
tCSH
CVIN
COUT
CIN
Channel Address Hold Time
Channel Address Setup Time
CS Setup Time
CS Hold Time
Analog Input Capacitance
Logic Output Capacitance
Logic Input Capacitance
(Figures 1, 2, 3, 4, 5)
(Figures 1, 2, 3, 4, 5)
(Figures 1, 2, 3, 4, 5)
(Figures 1, 2, 3, 4, 5)
10 60 ns (min)
0 0 ns (max)
0 0 ns (max)
0 0 ns (min)
25 pF
5 pF
5 pF
DC Electrical Characteristics
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)
VIH
Logic “1” Input Voltage
V+ = 5.5V
Mode Pin
3.5 V (min)
ADC08062
CS, WR, RD, A0 Pins
2.2 V (min)
ADC08061
CS, WR, RD Pins
2.0 V (min)
5 www.national.com


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Part NumberDescriptionMFRS
ADC0806The function is 8-Bit/ 20 MSPS to 60 MSPS/ 1.3 mW/MSPS A/D Converter. National SemiconductorNational Semiconductor
ADC0806The function is 500 ns A/D Converter with S/H Function and Input Multiplexer. National SemiconductorNational Semiconductor
ADC08060The function is 8-Bit/ 20 MSPS to 60 MSPS/ 1.3 mW/MSPS A/D Converter. National SemiconductorNational Semiconductor

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