ADC08062 Datasheet | National Semiconductor

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 m W 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 generates 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 external sample-and-hold. The ADC08061/2 family performs accurate conversions of full-scale input signals that have a frequency range of DC to 300 k Hz (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 n n n n n Resolution Conversion Time Full Power Bandwidth Throughput rate Power Dissipation Total Unadjusted Error 8 bits 560 ns max (WR-RD Mode) 300 k Hz 1.5 MHz 100 m W max ± 1⁄2 LSB and ± 1 LSB Features n n n n n 1 or 2 input channels No external clock required Analog input voltage range from GND to V+ Overflow output available for cascading (ADC08061) ADC08061 pin-patible with the industry standard ADC0820 Applications n n n n Mobile telemunications Hard disk drives Instrumentation High-speed data acquisition systems Block Diagram DS011086-1 - ADC08061 - - ADC08062 TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS011086 .national. Connection Diagrams DS011086-15 DS011086-14 Dual-In-Line and Wide-Body Small-Outline Packages N20A or M20B Dual-In-Line and Wide-Body Small-Outline Packages N20A or M20B Ordering Information Industrial (- 40˚C ≤ TA ≤ 85˚C) ADC08061BIN, ADC08062BIN ADC08061CIWM, ADC08062CIWM Package N20A M20B Pin Description These are analog inputs. The input range is GND- 50 m V ≤ VINPUT ≤ V+ + 50 m V. The ADC08061 has a single input (VIN) and...