Datasheet

4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
11
Maxim Integrated
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
Pin Description (continued)
MAX11044/
MAX11044B
(TQFN-EP)
MAX11045/
MAX11045B
(TQFN-EP)
MAX11046/
MAX11046B
(TQFN-EP)
NAME FUNCTION
24, 30, 41, 47 24, 30, 41, 47 24, 30, 41, 47 AVDD
Analog Supply Input. Bypass AVDD to AGND with a
0.1μF capacitor at each AVDD input.
25, 31, 40, 46 25, 31, 40, 46 25, 31, 40, 46 AGND Analog Ground. Connect all AGND inputs together.
32 29 26 CH0 Channel 0 Analog Input
34 32 29 CH1 Channel 1 Analog Input
37 34 32 CH2 Channel 2 Analog Input
39 37 34 CH3 Channel 3 Analog Input
36 36 36 REFIO
External Reference Input/Internal Reference Output.
Place a 0.1μF capacitor from REFIO to AGND.
— 39 37 CH4 Channel 4 Analog Input
— 42 39 CH5 Channel 5 Analog Input
— — 42 CH6 Channel 6 Analog Input
— — 45 CH7 Channel 7 Analog Input
52 52 52 WR
Active-Low Write Input. Drive WR low to write to the
ADC. Configuration registers are loaded on the rising
edge of WR.
53 53 54 CS
Active-Low Chip-Select Input. Drive CS low when
reading from or writing to the ADC.
54 54 54 RD
Active-Low Read Input. Drive RD low to read from the
ADC. Each rising edge of RD advances the channel
output on the data bus.
55 55 55 DB15 16-Bit Parallel Data Bus Digital Output Bit 15
56 56 56 DB14 16-Bit Parallel Data Bus Digital Output Bit 14
26, 29, 42, 45 26, 45 — I.C. Internally Connected. Connect to AGND.
———EP
E xp osed P ad . Inter nal l y connected to AG N D . C onnect to
a l ar g e g r ound p l ane to m axi m i ze ther m al p er for m ance.
N ot i ntend ed as an el ectr i cal connecti on p oi nt.