MAX11046 datasheet(4/19 Pages) MAXIM

4 / 19 page

4-/6-/8-Channel, 16-Bit,

Simultaneous-Sampling ADCs

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ELECTRICAL CHARACTERISTICS (continued)

(AVDD = +4.75V to +5.25V, DVDD = +2.70V to +5.25V, VAGNDS = VAGND = VDGND = 0V, VREFIO = internal reference, CRDC = 4 x

33µF, CREFIO = 0.1µF, CAVDD = 4 x 0.1µF || 10µF, CDVDD = 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise

noted, fSAMPLE = 250ksps. TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

MAX11046, DVDD = 3.3V (Note 9)

7.3

MAX11045, DVDD = 3.3V (Note 9)

6.3

Digital Supply Current

IDVDD

MAX11044, DVDD = 3.3V (Note 9)

5.5

IDVDD

Shutdown Current

IAVDD

µA

Power-Supply Rejection Ratio

PSRR

VAVDD = 4.9V to 5.1V (Note 10)

±3

LSB

TIMING CHARACTERISTICS (Note 9)

CONVST Rise to EOC

tCON

Conversion time (Note 11)

µs

Acquisition Time

tACQ

1000

µs

CS Rise to CONVST Rise

Sample quiet time (Note 11)

500

CONVST Rise to EOC Rise

140

EOC Fall to CONVST Fall

CONVST mode B0 = 0 only (Note 12)

CONVST Low Time

CONVST mode B0 = 1 only

CS Fall to WR Fall

0ns

WR Low Time

CS Rise to WR Rise

0ns

Input Data Setup Time

Input Data Hold Time

1ns

CS Fall to RD Fall

0ns

RD Low Time

RD Rise to CS Rise

t10

0ns

RD High Time

t11

RD Fall to Data Valid

t12

RD Rise to Data Hold Time

t13

(Note 12)

Note 1:

See the

Definitions section at the end of the data sheet.

Note 2:

INL is guaranteed at AVDD = 5.25V, for +25°C < TA < +85°C. See the Input Range and Protection section and Typical

Operating Characteristics.

Note 3:

TA = -40°C.

Note 4:

DNL at code > 8192 or < 57343 (offset binary encoded), or code > -24576 or < +24575 (two’s complement), is guaranteed

at AVDD = 5.25V, for +25°C < TA < +85°C. See the Input Range and Protection section and Typical Operating

Characteristics.

Note 5:

DNL at code ≤ 8192 or ≥ 57343 (offset binary encoded), or code ≤ -24576 or ≥ +24575 (2’s complements), is guaranteed

at AVDD = 5.25V, for +25°C < TA < +85°C. See the Input Range and Protection section and Typical Operating

Characteristics.

Note 6:

AC dynamics are guaranteed at AVDD = 5.25V, for +25°C < TA < +85°C. See the Input Range and Protection section and

Typical Operating Characteristics.

Note 7:

Tested with alternating channels modulated at full scale and ground.

Note 8:

See the

Input Range and Protection section for more details.

Note 9:

CLOAD = 30pF on DB0–DB15 and EOC. Inputs (CH0–CH7) alternate between full scale and zero scale. fCONV = 250ksps.

All data is read out.

Note 10: Defined as the change in positive full scale caused by a ±2% variation in the nominal supply voltage.

Note 11: It is recommended that RD, WR, and CS are kept high for the quiet time (tQ) and conversion time (tCON).

Note 12: Guaranteed by design.

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