MCP3423-E/UN Microchip Technology, MCP3423-E/UN Datasheet
MCP3423-E/UN
Specifications of MCP3423-E/UN
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MCP3423-E/UN Summary of contents
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... MHz) mode. 2 The I C address bits for the MCP3423 and MCP3424 are selected by using two external I tion pins (Adr0 and Adr1). The user can configure the device to one of eight available addresses by connect- ...
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... Includes Exposed Thermal Pad (EP); see Functional Block Diagram MCP3422 CH1+ CH1- CH2+ Gain = 1,2, CH2- DS22088B-page 2 The MCP3422 is available in 8-pin SOIC, DFN, and MSOP packages. The MCP3423 is available in 10-pin DFN, and MSOP packages. The MCP3424 is available in 14-pin SOIC and TSSOP packages MSOP CH1+ CH1 ...
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... Functional Block Diagram MCP3423 CH1+ CH1- CH2+ CH2- Gain = 1,2, Functional Block Diagram CH1+ CH1- CH2+ CH2- CH3+ CH3- Gain = 1,2, CH4+ CH4- © 2008 Microchip Technology Inc Voltage Reference (2.048V) V REF ΔΣ ADC PGA Converter Interface Clock Oscillator MCP3424 Voltage Reference (2 ...
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... MCP3422/3/4 NOTES: DS22088B-page 4 © 2008 Microchip Technology Inc. ...
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... Includes all errors from on-board PGA and V 7: This parameter is ensured by characterization and not 100% tested. 8: MCP3423 and MCP3424 only. 9: Addr_Float voltage is applied at address pin. 10: No voltage is applied at address pin (left “floating”). © 2008 Microchip Technology Inc. †Notice: Stresses above those listed under “Maximum Rat- ings” ...
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... INL is the difference between the endpoints line and the measured code at the center of the quantization band. 6: Includes all errors from on-board PGA and V 7: This parameter is ensured by characterization and not 100% tested. 8: MCP3423 and MCP3424 only. 9: Addr_Float voltage is applied at address pin. 10: No voltage is applied at address pin (left “floating”). DS22088B-page 6 = -40°C to +85° differential full-scale range ...
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... Storage Temperature Range Thermal Package Resistances Thermal Resistance, 8L-DFN (2x3) Thermal Resistance, 8L-MSOP Thermal Resistance, 8L-SOIC Thermal Resistance, 10L-DFN (3x3) Thermal Resistance, 10L-MSOP Thermal Resistance, 14L-SOIC Thermal Resistance, 14L-TSSOP © 2008 Microchip Technology Inc -40°C to +125° Sym Min Typ Max ...
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... MCP3422/3/4 NOTES: DS22088B-page 8 © 2008 Microchip Technology Inc. ...
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... Temperature ( C) FIGURE 2-2: INL vs. Temperature PGA = 8 5 PGA = -10 PGA = 2 -15 -20 -60 -40 - 100 120 140 Temperature (°C) FIGURE 2-3: Offset Error vs. Temperature. © 2008 Microchip Technology Inc. = +5.0V 0V, CHn+ = CHn +25° PGA = 5.5 -100 -75 FIGURE 2-4: Voltage. 2 PGA = 1 1.5 PGA = ...
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... V = 2.7V DD -110 -120 0.1 0.1 FIGURE 2-11: /2, REF 100 120 140 Temperature (°C) Oscillator Drift vs. Data Rate = 3.75 SPS 1 10 100 1000 10000 1 10 100 1k 10k Input Signal Frequency (Hz) Frequency Response. © 2008 Microchip Technology Inc. ...
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... PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE MCP3422 MCP3423 MSOP, DFN DFN MSOP SOIC — — — — — — — — — — — — — — — — — — — — ...
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... There is an internal electrical connection between the Exposed Thermal Pad (EP) and the V be connected to the same potential on the Printed Circuit Board (PCB). Sampling Switch SAMPLE (3.2 pF interface. The SDA line to the SDA pin Serial Communications” Serial Interface communication. pin; they must SS © 2008 Microchip Technology Inc. ...
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... A 0.1 µF decoupling capacitor should be mounted as close as possible to the V for additional transient immunity. © 2008 Microchip Technology Inc. MCP3422/3/4 The threshold voltage is set at 2.2V with a tolerance of approximately ±5%. If the supply voltage falls below this threshold, the device will be held in a reset condition ...
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... Self-Calibration The device performs a self-calibration of offset and gain for each conversion. This provides reliable conversion results from conversion-to-conversion over variations in temperature as well as power supply fluctuations. Ω Z (f) = 2.25 M /PGA IN 2-11) may not give enough © 2008 Microchip Technology Inc. ...
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... Where Resolution, which is programmed in the Configuration Register. © 2008 Microchip Technology Inc. Table 4-1 shows the LSB size of each conversion rate setting. The measured unknown input voltage is obtained by multiplying the output codes with LSB. See the following section for the input voltage calculation using the output codes ...
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... LSB(15.625μV)/PGA = - 15.625 (μV)for PGA = 1 1 -(0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+2 LSB(15.625μV)/PGA = - 31.25 (μV)for PGA = -(2 +0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0) x LSB(15.625μV)/PGA = - 2.048 (V) for PGA = -(2 +0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0) x LSB(15.625μV)/PGA = - 2.048 (V) for PGA = 1 © 2008 Microchip Technology Inc. LSB • ----------- - PGA LSB • ----------- - PGA See Table 4-1 1’s complement + ...
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... RDY bit = 1 means the conversion result is not updated since the last reading. A new conversion is under processing and the RDY bit will be cleared when the new conversion result is ready. © 2008 Microchip Technology Inc. 5.1.2 ONE-SHOT CONVERSION MODE (O/C BIT = Once the One-Shot Conversion (single conversion) ...
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... Select Channel Select Channel 3 (MCP3424 only, treated as “00” by the MCP3422/MCP3423 Select Channel 4 (MCP3424 only, treated as “01” by the MCP3422/MCP3423) bit 4 O/C: Conversion Mode Bit 1 = Continuous Conversion Mode (Default). The device performs data conversions continuously One-Shot Conversion Mode. The device performs a single conversion and enters a low power standby mode until it receives another write or read command ...
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... The I C address bits (A2, A1, A0 bits) for the MCP3423 and MCP3424 are user configurable and determined by the logic status of the two external address selection pins on the user’s application board (Adr0 and Adr1 pins). The Master must know the Adr0 and Adr1 pin conditions before sending read or write command ...
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... DEVICE ADDRESS BITS (A2, A1, A0) AND ADDRESS SELECTION PINS ( AND MCP3423 MCP3424 The MCP3423 and MCP3424 have two external device address pins (Adr1, Adr0). These pins can be set to a logic high (or tied low (or tied left floating (not connected to anything, or tied to V /2), These combinations of logic level using the DD two pins allow eight possible addresses ...
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... TABLE 5-3: ADDRESS BITS VS. ADDRESS SELECTION PINS FOR (MCP3423 AND MCP3424 ONLY) (NOTE Device Logic Status of Address Address Bits Selection Pins Adr0 Pin 0 (Addr_Low (Addr_Low (Addr_Low (Addr_High (Addr_High (Addr_High Float Float Float Note 1: Float: (a) Leave pin without connecting to anything (left floating), or (b) apply Addr_Float voltage ...
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... Master may read the configuration byte to check the RDY bit condition.The Master may continuously send clock (SCL) to repeatedly read the configuration byte (to check the RDY bit status). Figures 5-4 and 5-5 show the timing diagrams of the reading. Digital Output Codes © 2008 Microchip Technology Inc. ...
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... FIGURE 5-4: Timing Diagram For Reading From The MCP3422/3/4 With 18-Bit Mode. © 2008 Microchip Technology Inc. MCP3422/3/4 DS22088B-page 23 ...
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... MCP3422/3/4 FIGURE 5-5: Timing Diagram For Reading From The MCP3422/3/4 With 12-Bit to 16-Bit Modes. DS22088B-page 24 © 2008 Microchip Technology Inc. ...
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... The I C specification defines the following bus protocol: • Data transfer may be initiated only when the bus MCP3423 is not busy • During data transfer, the data line must remain stable whenever the clock line is HIGH. Changes in the data line while the clock line is HIGH will be ...
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... SDA line to allow the Master (microcontrol- ler) to generate a STOP or repeated START condition. The non-acknowledgement (NAK) is issued by provid- ing the SDA line to “HIGH” during the 9th clock pulse. is (D) (D) ADDRESS OR DATA ACKNOWLEDGE ALLOWED VALID TO CHANGE 2 C Serial Bus. (C) (A) STOP CONDITION © 2008 Microchip Technology Inc. ...
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... If this parameter is too short, it can create an unintended Start or Stop condition to other devices on the bus line. If this parameter is too long, Clock Low time (T 4: For Data Input: If this parameter is too long, the Data Input Setup (T For Data Output: This parameter is characterized, and tested indirectly by testing T © 2008 Microchip Technology Inc. = -40 to +85° Min Typ ...
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... MHz b SCL ns From 400 pF 1.7 MHz b SCL 100 pF 3.4 MHz b SCL 400 pF 1.7 MHz b SCL 100 pF 3.4 MHz b SCL 400 pF 1.7 MHz b SCL ns After this period, the first clock pulse is generated HD:DAT ) can be affected. LOW parameter. AA © 2008 Microchip Technology Inc. ...
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... SCL SU:STA T LOW T SDA HD:STA FIGURE 5- Bus Timing Data. © 2008 Microchip Technology Inc. T HIGH T SU:DAT T HD:DAT T AA MCP3422/3 SU:STO T BUF 0.7V DD 0.3V DD DS22088B-page 29 ...
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... MCP3422/3/4 NOTES: DS22088B-page 30 © 2008 Microchip Technology Inc. ...
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... Microchip Technology Inc. 2 6.1 ADDRESS SELECTION PINS ( MCP3423 The user can tie the Adr0 and Adr1 pins left floating. See more details in Section 5.3.2 “Device Address Bits (A2, A1, A0) and Address Selection Pins (MCP3423 and MCP3424)”. Input 1 CH1+ Signal 1 2 CH1- 3 Input CH2+ ...
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... Differential Input Signal Connection: Excitation 8 9 Stop Bit (b) Single-ended Input Signal Connection: R/W Excitation MCP342x Response Sensor FIGURE 6-4: Single-Ended Input Connections. Sensor CHn+ Input Signal CHn- MCP342x R 1 CHn+ Input Signal R 2 CHn- MCP342x Differential and © 2008 Microchip Technology Inc. ...
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... FIGURE 6-5: Battery Voltage and Charging/Discharging Current Measurement. © 2008 Microchip Technology Inc. value. The voltage drops across the sensor is waste. Therefore, the current measurement often prefers to use a current sensor with smaller resistance value, which, in turn, requires high resolution ADC device. ...
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... Where: 1 LSB = Isothermal Block MCP9800 SDA SCL MCP9800 SDA SCL μ = 15.625 V/PGA = 1.953125μV for PGA = 8 μ • μ V/°C = 320 V/°C μ 320 V/°C = ------------------------ - = 20.48 Codes/°C μ 15.625 V 15.625 µV with 18 bit configuration © 2008 Microchip Technology Inc. ...
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... The pressure is measured by using NPP 301 (manufactured by GE NovaSensor), and temperature is measured by a thermistor. The pressure sensor output is 20 mV/V. This gives 100 (sensor excitation volt- of full scale output for V DD © 2008 Microchip Technology Inc. ⎞ ⎟ ----------------------- - ⎟ 15.625μV ⎠ ...
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... The thermistor sensor is simple to use and widely used for the temperature measurement applications. It has both linear and non-linear responses over temperature range used to adjust the linear region of interest 1 for measurement. DS22088B-page 36 ⎞ ⎟ 100 mV ⎟ ⎠ PGA ) forms a 2 © 2008 Microchip Technology Inc. ...
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... MCP3422/3/4 Evaluation Boards The Evaluation Boards for MCP3422/3/4 devices are available from Microchip Technology Inc. The boards work with Microchip’s PICkit™ Serial Analyzer. The user can simply connect any sensing voltage to the input test pads of the board and read conversion codes using the easy-to-use PICkit™ ...
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... MCP3422/3/4 NOTES: DS22088B-page 38 © 2008 Microchip Technology Inc. ...
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... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2008 Microchip Technology Inc. MCP3422/3/4 Example: AGM 835 ...
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... MCP3422/3/4 Package Marking Information (Continued) 10-Lead DFN (3x3) (MCP3423 XXXX 2 9 XYWW 3 8 NNN 10-Lead MSOP (MCP3423) XXXXXX YWWNNN 14-Lead SOIC (150 mil) (MCP3424) XXXXXXXXXXX XXXXXXXXXXX YYWWNNN 14-Lead TSSOP (4.4 mm) (MCP3424) XXXXXXXX YYWW NNN DS22088B-page 40 Example 3423 2 9 0835 3 8 256 ...
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... D N NOTE TOP VIEW A3 © 2008 Microchip Technology Inc EXPOSED PAD BOTTOM VIEW A NOTE 2 A1 MCP3422/3 NOTE DS22088B-page 41 ...
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... MCP3422/3/4 DS22088B-page 42 © 2008 Microchip Technology Inc. ...
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... D N NOTE © 2008 Microchip Technology Inc MCP3422/3/4 φ L DS22088B-page 43 ...
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... MCP3422/3/4 N NOTE DS22088B-page φ α c β © 2008 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP3422/3/4 DS22088B-page 45 ...
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... MCP3422/3 NOTE TOP VIEW A3 DS22088B-page EXPOSED PAD BOTTOM VIEW A A1 NOTE NOTE © 2008 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP3422/3/4 DS22088B-page 47 ...
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... MCP3422/3 NOTE DS22088B-page φ © 2008 Microchip Technology Inc. ...
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... N NOTE © 2008 Microchip Technology Inc φ MCP3422/3/4 h α c β DS22088B-page 49 ...
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... MCP3422/3 NOTE DS22088B-page © 2008 Microchip Technology Inc. φ L ...
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... Added new package marking information and package outline drawings for MCP3422 and MCP3423 devices. 3. Added MCP3422 and MCP3423 devices to Product Identification System page. Revision A (June 2008) • Original Release of this Document. © 2008 Microchip Technology Inc. MCP3422/3/4 ...
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... MCP3422/3/4 NOTES: DS22088B-page 52 © 2008 Microchip Technology Inc. ...
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... Microchip Technology Inc. Examples: X /XX Package MCP3422 a) MCP3422A0-E/MC: 2-Channel ADC, b) MCP3422A0T-E/MC: Tape and Reel, c) MCP3422A0-E/MS: 2-Channel ADC, d) MCP3422A0T-E/MS: Tape and Reel, e) MCP3422A0-E/SN: 2-Channel ADC, f) MCP3422A0T-E/SN: Tape and Reel, MCP3423 a) MCP3423-E/MF: b) MCP3423T-E/MF MCP3423-E/UN MCP3423T-E/UN MCP3424 MCP3424-E/SL MCP3424T-E/SL: c) MCP3424-E/ST: d) MCP3424T-E/ST: MCP3422/3/4 . ...
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... MCP3422/3/4 NOTES: DS22088B-page 54 © 2008 Microchip Technology Inc. ...
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... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...