MC145053 Motorola, MC145053 Datasheet
MC145053
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MC145053 Summary of contents
Page 1
... The converter operates from a single power supply with no external trimming required. Reference voltages down to 4.0 V are accommodated. The MC145053 has an internal clock oscillator to operate the dynamic A/D conversion sequence and an end-of-conversion (EOC) output. 5 Analog Input Channels with Internal Sample-and-Hold Operating Temperature Range: – ...
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... I DD Maximum Power Supply Current I ref Maximum Static Analog Reference Current (V ref ) I Al Maximum Analog Mux Input Leakage Current between all deselected inputs and any selected input (AN0 – AN4) MC145053 2 Value Unit guard against damage due to high static – 0 6.0 V voltages or electric fields. However, pre ...
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... SCLK = 2.1 MHz Maximum Sample Rate Rate at which analog inputs may be sampled; SCLK = 2.1 MHz MOTOROLA WIRELESS SEMICONDUCTOR SOLUTIONS DEVICE DATA Definition and Test Conditions Guaranteed Limit Unit 10 Bits 1 LSB 1 LSB 1 LSB 1 LSB 1/2 LSB 1-1/2 LSB SCLK cycles 6 SCLK cycles 49 s 20.4 ks/s MC145053 3 ...
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... Maximum Three-State Output Capacitance NOTES: 1. After the 10th SCLK falling edge ( 2 V), at least 1 SCLK rising edge ( 2 V) must occur within 18 edge may be received immediately after an active transition on the EOC pin. MC145053 4 Parameter (10-bit xfer) Min (11- to 16-bit xfer) Min ...
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... NOTE: D out is driven only when CS is active (low). 2.0 V SCLK t h EOC 0 2.18 k DEVICE UNDER TEST 2 PZH , t PZL t PHZ , t PLZ 90% 2.4 V 0.4 V 10% Figure 2. t TLH 2 2.4 V 0.4 V VALID MSB Figure 4. 10TH CLOCK 0 PHL 2 THL Figure TEST POINT 2.18 k EOC Figure 8. Test Circuit MC145053 5 ...
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... PIN DESCRIPTIONS DIGITAL INPUTS AND OUTPUT The various serial bit-stream formats for the MC145053 are illustrated in the timing diagrams of Figures 9 through 14. Table 1 assists in selection of the appropriate diagram. Note that the ADC accepts 16 clocks which makes it SPI (Serial Peripheral Interface) compatible. Table 1. Timing Diagram Selection No ...
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... V ref – ref and V AG must be as noise-free as possible to avoid degradation of the A/D conversion. Ideally, V ref and V AG should be single-point con- nected to the voltage supply driving the system’s transduc- ers. Use of a 0.22 F bypass capacitor across these pins is strongly urged. 1 LSB. MC145053 7 ...
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... EOC SHIFT IN NEW MUX ADDRESS, SIMULTANEOUSLY SHIFT OUT PREVIOUS CONVERSION VALUE INITIALIZE Figure 10. Timing for 10-Clock Transfer Not Using CS NOTES: 1. D9, D8, D7, D6, D5 the result of the previous A/D conversion. 2. A3, A2, A1 the mux address for the next A/D conversion. MC145053 ...
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... MOTOROLA WIRELESS SEMICONDUCTOR SOLUTIONS DEVICE DATA MC145053 9 ...
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... MC145053 10 MOTOROLA WIRELESS SEMICONDUCTOR SOLUTIONS DEVICE DATA ...
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... DESCRIPTION This example application of the MC145053 ADC interfaces four analog signals to a microprocessor. Figure 15 illustrates how the MC145053 is used as a cost- effective means to simplify this type of circuit design. Utilizing one ADC, four analog inputs are interfaced to a CMOS or NMOS microprocessor with a serial peripheral interface (SPI) port. Processors with National Semiconductor’ ...
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... L $FF40 $FF80 $FFC0 + ref V DD 0.22 F AN0 AN1 ANALOG MC145053 SENSORS, ADC ETC. AN2 AN3 AN4 Figure 15. Example Application MOTOROLA WIRELESS SEMICONDUCTOR Output Code Conversion Result With Offset Removed Value $0000 Zero ...
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... MC68HC05C3 4160 — Yes MC68HC05C4 — Yes MC68HSC05C4 4160 8K — Yes MC68HSC05C8 — Yes MC68HCL05C4 4160 — Yes MC68HCL05C8 8K — Yes MC68HC05C8 7700 — 4160 — MC68HC805C4 — — — MC68HC000 DO NOT CONNECT NOT CONNECT AT IC Device Device MC145053 13 ...
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... SEATING PLANE MC145053 14 PACKAGE DIMENSIONS PLASTIC DIP P SUFFIX CASE 646-06 NOTES: 1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 4. ROUNDED CORNERS OPTIONAL MOTOROLA WIRELESS SEMICONDUCTOR AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION ...
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... MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 0.337 0.344 8.55 8.75 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.016 0.049 0.40 1.25 1.27 BSC 0.050 BSC G J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 5.80 6.20 0.228 0.244 R 0.25 0.50 0.010 0.019 Mfax is a trademark of Motorola, Inc. MC145053 MC145053/D 15 ...