max1239keee Maxim Integrated Products, max1239keee Datasheet
max1239keee
Available stocks
Related parts for max1239keee
max1239keee Summary of contents
Page 1
... MAX1238EEE 12 4.096 MAX1239EEE 12 2.048 AutoShutdown is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. o High-Speed I 400kHz Fast Mode 1.7MHz High-Speed Mode o Single-Supply 2 ...
Page 2
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD AIN0–AIN11, REF to GND ............-0.3V to the lower of (V SDA, SCL to GND.....................................................-0.3V to +6V Maximum ...
Page 3
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs ELECTRICAL CHARACTERISTICS (continued 2.7V to 3.6V (MAX1237/MAX1239 4.096V (MAX1236/MAX1238 0.1µF, f REF T = +25°C, see Tables 1–5 for programming notation.) ...
Page 4
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs ELECTRICAL CHARACTERISTICS (continued 2.7V to 3.6V (MAX1237/MAX1239 4.096V (MAX1236/MAX1238 0.1µF, f REF T = +25°C, see Tables 1–5 for programming notation.) ...
Page 5
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs TIMING CHARACTERISTICS (Figure 1) (continued 2.7V to 3.6V (MAX1237/MAX1239 4.096V (MAX1236/MAX1238 0.1µF, f REF T = +25°C, see Tables 1–5 for ...
Page 6
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs TIMING CHARACTERISTICS (Figure 1) (continued 2.7V to 3.6V (MAX1237/MAX1239 4.096V (MAX1236/MAX1238 0.1µF, f REF T = +25°C, see Tables 1–5 for ...
Page 7
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs (V = 3.3V (MAX1237/MAX1239 ended, unipolar +25°C, unless otherwise noted.) A AVERAGE SUPPLY CURRENT vs. CONVERSION RATE (EXTERNAL CLOCK) 800 A) INTERNAL ...
Page 8
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs PIN MAX1236 MAX1238 MAX1237 MAX1239 — 4–8 — 16, 15 — — ...
Page 9
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs SDA SCL V DD GND AIN0 AIN1 AIN2 AIN3 AIN4 AIN5 AIN6 AIN7 AIN8 AIN9 AIN10 AIN11/REF Figure 2. MAX1238/MAX1239 Simplified Functional Diagram ...
Page 10
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs signal. At the end of the acquisition interval, the T/H switches move to the hold position retaining the charge stable sample of the ...
Page 11
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs swing from (GND - 0.3V ing damage to the device. For accurate conversions, the inputs must not go more than 50mV below GND or ...
Page 12
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs A bus master initiates communication with a slave device by issuing a START condition followed by a slave address. When idle, the MAX1236–MAX1239 continu- ously wait for ...
Page 13
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs Configuration/Setup Bytes (Write Cycle) A write cycle begins with the bus master issuing a START condition followed by seven address bits (Figure 7) and a write bit ...
Page 14
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs Table 2. Configuration Byte Format BIT 7 BIT 6 BIT 5 (MSB) REG SCAN1 SCAN0 BIT NAME 7 REG Register bit 1 = setup byte (see Table ...
Page 15
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs Table 4. Channel Selection in Differential Mode (SGL/DIF = CS3 CS2 CS1 CS0 AIN0 ...
Page 16
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs MASTER TO SLAVE SLAVE TO MASTER A. SINGLE CONVERSION WITH INTERNAL CLOCK SLAVE ADDRESS R A CLOCK STRETCH RESULT 4 MSBs ...
Page 17
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs Table 5. Scanning Configuration SCAN1 SCAN0 Scans up from AIN0 to the input selected by CS3–CS0. When CS3–CS0 exceeds 11, the scanning stops AIN11. ...
Page 18
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs Table 6. Reference Voltage and AIN_/REF Format SEL2 SEL1 SEL0 REFERENCE VOLTAGE ...
Page 19
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs OUTPUT CODE V REF AIN- 011...111 2 011...110 ZS = AIN- -V REF - AIN- 000...010 2 V 000...001 REF 1 LSB ...
Page 20
... MAX1238KEEE QSOP *R S MAX1238LEEE QSOP SDA SCL MAX1238MEEE QSOP *R S MAX1239EEE MAX1239KEEE R P MAX1239LEEE MAX1239MEEE - QSOP R P *Future product—contact factory for availability. MAX1236/MAX1237 TRANSISTORS COUNT: 11,362 MAX1238/MAX1239 TRANSISTORS COUNT: 12,956 ...
Page 21
Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages ÿ ...
Page 22
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 22 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products ...