GENERAL DESCRIPTION The ML2281 family are 8-Bit successive approximation A/D Converters with Serial I/O and configurable input Multiplexers with up to 8 input channels. All errors of the sample-and-hold, incorporated on the ML2281 family are accounted for in the analog-to-digital Converters accuracy specification.
FEATURES ■ Conversion time: 6µs ■ Total unadjusted error: ±1/2LSB or ±1LSB ■ Sample-and-hold: 375ns acquisition ■ 2, 4 or 8-input Multiplexer Options ■ 0 to 5V analog input range with single 5V power supply ■ Operates ratiometrically or with up to 5V voltage reference ■ No zero or full-scale adjust required ■ ML2281 capable of digitizing a 5V, 40kHz sine wave ■ Low power: 12.5mW MAX ■ Superior pin compatible replacement for ADC0831, ADC0832, ADC0834, and ADC0838 ■ Analog input protection: 25mA (min) per input ■ Now in 8-Pin SOIC Package (ML2281, ML2282)
Description WM0834 and WM0838 are 8-Bit analogue to digital Converters (ADC) with configurable 4-input and 8-input Multiplexers respectively and a Serial I/O interface. Assignment of the Multiplexer inputs is configured before each conversion via the Serial data input to give single-ended or differential operation for the selected inputs. A mixture of input configurations can be used in the same application. WM0838 also has a pseudo-differential configuration where all 8 inputs can be refered to a common input at an arbitrary voltage.
Features • Functionally Equivalent to National Semiconductor ADC0834 and ADC0838 without the Internal Zener Regulator Network • 4-input (WM0834) or 8-input (WM0838) MUX Options • Reference input operates ratiometrically or with a fixed reference • Input range 0 to Vcc with Vcc Reference • 5V and 3.3V variants • Total Unadjusted Error: ± 1 LSB • 8-Bit resolution • Low Power • 32 µs conversion time at fclock = 250 kHz • Serial I/O interface • WM0834 packages: 14 pin SO & DIP WM0838 packages: 20 pin wide-body SO & DIP
Applications • Embedding with remote sensors • Equipment health monitoring • Automotive • Industrial control
The ML2252 and ML2259 combine an 8-Bit A/D converter, 2- or 8-channel analog Multiplexer, and a
microprocessor compatible 8-Bit parallel interface and control logic in a single monolithic CMOS device.
■Conversion time (fCLK= 1.46MHz); 6.6µs
■Total unadjusted error; ±1/2LSB or ±1LSB
■No missing codes
■Sample and hold; 390ns acquisition
■Capable of digitizing a 5V, 50kHz sinewave
■2- or 8-channel input Multiplexer
■0V to 5V analog input range with single 5V power supply
■Operates ratiometrically or with up to 5V voltage reference
■No zero or full scale adjust required
■Analog input protection; 25mA per input min
■Continuous conversion mode
■Low power dissipation; 15mW max
■TTL and CMOS compatible digital inputs and outputs
GENERAL DESCRIPTION The ML2280 and ML2283 are 8-Bit successive approximation A/D Converters with Serial I/O and configurable input Multiplexers with up to 4 input channels. All errors of the sample-and-hold incorporated on the ML2280 and ML2283 are accounted for in the analog-to-digital Converters accuracy specification.
FEATURES ■ Conversion time: 6µs ■ ML2280 capable of digitizing a 5V, 40kHz sine wave ■ Total unadjusted error with external reference: ±1/2LSB or ±1LSB ■ Sample-and-hold: 375ns acquisition ■ 0 to 5V analog input range with single 5V power supply ■ 2.5V reference provides 0 to 5V analog input range ■ No zero- or full-scale adjust required ■ Low power: 12.5mW MAX ■ Analog input protection: 25mA (min) per input ■ Differential analog voltage inputs (ML2280) ■ Programmable Multiplexer with differential or single ended analog inputs (ML2283) ■ 0.3" width 8- or 14-pin DIP, or 8-Pin SOIC (ML2280) ■ Superior pin-compatible replacement for ADC0833
General Description The 74F673A contains a 16-bit Serial-in, Serial-out shift register and a 16-bit Parallel-Out storage register. A single pin serves either as an input for Serial entry or as a 3-STATE Serial output. In the Serial-Out mode, the data recirculates in the shift register.
Features ■ Serial-to-parallel converter ■ 16-bit Serial I/O shift register ■ 16-bit parallel-out storage register ■ Recirculating Serial shifting ■ Recirculating parallel transfer ■ Common Serial data I/O pin ■ Slim 24 lead package
DESCRIPTION The LTC®1390 is a high performance CMOS 8-to-1 analog Multiplexer. It features a 3-wire digital interface with a bidirectional data retransmission feature, allowing it to be wired in series with a Serial A/D converter while using only one Serial port. The interface also allows several LTC1390s to be wired in series or parallel, increasing the number of MUX channels available using only a single digital port. All the above features are also valid when LTC1390 operates as a deMultiplexer such as with a D/A converter.
FEATURES ■ 3-Wire Serial Digital Interface ■ Data Retransmission Allows Series Connection with Serial A/D Converters ■ Single 3V to ±5V Supply Operation ■ Analog Inputs May Extend to Supply Rails ■ Low Charge Injection ■ Low RON: 75Ω Max ■ Low Leakage: ±5nA Max ■ Guaranteed Break-Before-Make ■ TTL/CMOS Compatible for All Digital Inputs ■ Cascadable to Allow Additional Channels ■ Can Be Used as a DeMultiplexer
APPLICATIONS ■ Data Acquisition Systems ■ Communication Systems ■ Signal Multiplexing/Demultiplexing
Digital-to-Analog Converters with Serial Interface CMOS LSI
The MC144110 and MC144111 are low-cost 6-bit D/A Converters with Serial interface ports to provide communication with CMOSmicroprocessors and microcomputers. The MC144110 contains six static D/A Converters; the MC144111 contains four Converters. Due to a unique feature of these DACs, the user is permitted easy scaling of the analog outputs of a system. Over a 5 to 15 V supply range, these DACs may be directly interfaced to CMOS MPUs operating at 5 V.
ï Direct R-2R Network Outputs
ï Buffered Emitter-Follower Outputs
ï Serial Data Input
ï Digital Data Output Facilitates Cascading
ï Direct Interface to CMOS µP
ï Wide Operating Voltage Range: 4.5 to 15 V
ï Wide Operating Temperature Range: 0 to 85°C
ï Software Information is Contained in Document M68HC11RM/AD
Digital-to-Analog Converters with Serial Interface CMOS LSI
The MC144110 and MC144111 are low–cost 6–bit D/A Converters with Serial interfaceports to provide communication with CMOS microprocessors and microcomputers.The MC144110 contains six static D/A Converters; the MC144111 contains four Converters.
Due to a unique feature of these DACs, the user is permitted easy scaling of the analog outputs of a system. Over a 5 to15 V supply range, these DACs may be directly interfaced to CMOS MPUs operating at 5 V.
• Direct R–2R Network Outputs
• Buffered Emitter–Follower Outputs
• Serial Data Input
• Digital Data Output Facilitates Cascading
• Direct Interface to CMOS µP
• Wide Operating Voltage Range: 4.5 to 15 V
• Wide Operating Temperature Range: 0 to 85°C
• Software Information is Contained in Document M68HC11RM/AD
The 74F676 contains 16 flip-flops with provision for synchronous parallel or Serial entry and Serial output. When the mode (M) input is High, information present on the parallel data (D0–D15) inputs is entered on the falling edge of the clock pulse (CP) input signal. When M is Low, data is shifted out of the most significant bit position while information present on the Serial (SI) input shifts into the least significant bit position. A High signal on the chip select (CS) input prevents both parallel and Serial operations.
• 16-bit parallel-to-Serial conversion
• 16-bit Serial-in, Serial-out
• Chip select control
• Power supply current 48mA typical
• Shift frequency 110MHz tyical
• Available in 300mil-wide 24-pin Slim DIP package