MAX11056ECB+T Maxim Integrated, MAX11056ECB+T Datasheet - Page 15

• Manufacturer Part Number: MAX11056ECB+T
• Description: Analog to Digital Converters - ADC 14Bit 8Ch Simult Sampling
• Manufacturer: Maxim Integrated

Specifications of MAX11056ECB+T

• Rohs: yes
• Number Of Channels: 8
• Architecture: SAR
• Conversion Rate: 250 KSPs
• Resolution: 14 bit
• Input Type: Single-Ended
• Snr: 92.3 dB
• Interface Type: Parallel
• Operating Supply Voltage: 2.7 V to 5.25 V, 4.75 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Power Dissipation: 3478 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 8
• Voltage Reference: 4.096 V

The MAX11044/MAX11045/MAX11046 and MAX11054/
MAX11055/MAX11056 are fast, low-power ADCs that
combine 4, 6, or 8 independent ADC channels in a sin-
gle IC. Each channel includes simultaneously sampling
independent T/H circuitry that preserves relative phase
information between inputs making the MAX11044/
MAX11045/MAX11046 and MAX11054/MAX11055/
MAX11056 ideal for motor control and power monitor-
ing. The MAX11044/MAX11045/MAX11046 and
MAX11054/MAX11055/MAX11056 are available with
±5V input ranges that feature ±20mA overrange, fault-
tolerant inputs. The MAX11044/MAX11045/MAX11046
Maxim Integrated
27, 33, 40, 48,
31, 34, 47, 50
MAX11054
(TQFP-EP)
54
37
39
42
44
41
—
—
—
—
61
62
63
64
—
27, 33, 40, 48,
MAX11055
(TQFP-EP)
31, 50
Detailed Description
PIN
54
34
37
39
42
41
44
47
61
62
63
64
—
—
—
27, 33, 40, 48,
MAX11056
(TQFP-EP)
54
31
34
37
39
41
42
44
47
50
61
62
63
64
—
—
Simultaneous-Sampling ADCs
MAX11044/MAX11045/MAX11046/
MAX11054/MAX11055/MAX11056
4-/6-/8-Channel, 16-/14-Bit,
NAME
REFIO
DB13
RDC
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
WR
I.C.
CS
RD
EP
and MAX11054/MAX11055/MAX11056 operate with a
single 4.75V to 5.25V supply. A separate 2.7V to 5.25V
supply for digital circuitry makes the devices compatible
with low-voltage processors.
The MAX11044/MAX11045/MAX11046 and MAX11054/
MAX11055/MAX11056 perform conversions for all chan-
nels in parallel by activating independent ADCs. Results
are available through a high-speed, 20MHz, parallel
data bus after a conversion time of 3µs following the end
of a sample. The data bus is bidirectional and allows for
easy programming of the configuration register. The
MAX11044/MAX11045/MAX11046 and MAX11054/
MAX11055/MAX11056 feature a reference buffer, which
Refer ence Buffer D ecoup l i ng . C onnect al l RD C outp uts
tog ether . Byp ass to AG N D w i th at l east an 80µF total
cap aci tance. S ee the Layout, Gr ound i ng , and Byp assi ng
secti on.
Channel 0 Analog Input
Channel 1 Analog Input
Channel 2 Analog Input
Channel 3 Analog Input
External Reference Input/Internal Reference Output.
Place a 0.1µF capacitor from REFIO to AGND.
Channel 4 Analog Input
Channel 5 Analog Input
Channel 6 Analog Input
Channel 7 Analog Input
Active-Low Write Input. Drive WR low to write to the
ADC. Configuration registers are loaded on the rising
edge of WR.
Active-Low Chip-Select Input. Drive CS low when
reading from or writing to the ADC.
Acti ve- Low Read Inp ut. D r i ve RD l ow to r ead fr om the
AD C . E ach r i si ng ed g e of RD ad vances the channel
outp ut on the d ata b us.
14-Bit Parallel Data Bus Digital Output Bit 13
Internally Connected. Connect to AGND.
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.
Pin Description (continued)
FUNCTION
15