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ADC08061CIN View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
ADC08061CIN 500 ns A/D Converter with S/H Function and Input Multiplexer National-Semiconductor
National ->Texas Instruments National-Semiconductor
ADC08061CIN Datasheet PDF : 16 Pages
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Timing Diagrams (Continued)
DS011086-10
FIGURE 5. RD Mode (Pipeline Operation) (Mode Pin is Low and tRDW must be between 200 ns and 400 ns)
Typical Performance Characteristics
tCRD vs Temperature
Linearity Error vs
Reference Voltage
Offset Error vs
Reference Voltage
Supply Current
vs Temperature
DS011086-25
Logic Threshold
vs Temperature
DS011086-26
Output Current
vs Temperature
DS011086-27
DS011086-28
Application Information
1.0 FUNCTIONAL DESCRIPTION
The ADC08061 and ADC08062 perform an 8-bit
analog-to-digital conversion using a multi-step flash tech-
nique. The first flash generates the five most significant bits
(MSBs) and the second flash generates the three least sig-
nificant bits (LSBs). Figure 6 shows the major functional
blocks of the ADC08061/2’s multi-step flash converter. It
DS011086-29
DS011086-30
consists of an over-encoded 212-bit Voltage Estimator, an in-
ternal DAC with two different voltage spans, a 3-bit half-flash
converter and a comparator multiplexer.
The resistor string near the center of the block diagram in
Figure 6 forms the internal main DAC. Each of the eight re-
sistors at the bottom of the string is equal to 1/256 of the total
string resistance. These resistors form the LSB Ladder and
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