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MCP3302 Datasheet(PDF) 3 Page - Microchip Technology |
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MCP3302 Datasheet(HTML) 3 Page - Microchip Technology |
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3 / 46 page  © 2008 Microchip Technology Inc. DS21697E-page 3 MCP3302/04 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † VDD...................................................................................7.0V All inputs and outputs w.r.t. VSS ............... -0.3V to VDD +0.3V Storage temperature .....................................-65°C to +150°C Ambient temp. with power applied ................-65°C to +125°C Maximum Junction Temperature .................................. 150°C ESD protection on all pins (HBM) .....................................> 4kV † Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5V, VSS = 0V, and VREF = 5V. Full differential input configuration (Figure 1-5) with fixed common mode voltage of 2.5V. All parameters apply over temperature with TA = -40°C to +85°C (Note 7). Conversion speed (FSAMPLE) is 100 ksps with FCLK = 21*FSAMPLE Parameter Symbol Min Typ Max Units Conditions Conversion Rate Maximum Sampling Frequency FSAMPLE — — 100 ksps Note 8 — — 50 ksps VDD = VREF = 2.7V, VCM =1.35V Conversion Time TCONV 13 CLK periods Acquisition Time TACQ 1.5 CLK periods DC Accuracy Resolution 12 data bits + sign bits Integral Nonlinearity INL — ±0.5 ±1 LSB MCP3302/04-B — ±1 ±2 LSB MCP3302/04-C Differential Nonlinearity DNL — ±0.5 ±1 LSB Monotonic over temperature Positive Gain Error -3 -0.75 +2 LSB Negative Gain Error -3 -0.5 +2 LSB Offset Error -3 +3 +6 LSB Dynamic Performance Total Harmonic Distortion THD — -91 — dB Note 3 Signal-to-Noise and Distortion SINAD — 78 — dB Note 3 Spurious Free Dynamic Range SFDR — 92 — dB Note 3 Common Mode Rejection CMRR — 79 — dB Note 6 Channel to Channel Crosstalk CT — > -110 — dB Note 6 Power Supply Rejection PSR — 74 — dB Note 4 Reference Inpu t Voltage Range 0.4 — VDD V Note 2 Current Drain — 100 150 µA — 0.001 3 µA CS = VDD = 5V Note 1: This specification is established by characterization and not 100% tested. 2: See characterization graphs that relate converter performance to VREF level. 3: VIN = 0.1V to 4.9V @ 1 kHz. 4: VDD =5VP-P ±500 mV @ 1 kHz, see test circuit Figure 1-4. 5: Maximum clock frequency specification must be met. 6: VREF = 400 mV, VIN = 0.1V to 4.9V @ 1 kHz 7: TSSOP devices are only specified at 25°C and +85°C. 8: For slow sample rates, see Section 5.2 “Driving the Analog Input” for limitations on clock frequency. |
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