AXM0F243 datasheet(17/53 Pages) ONSEMI

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AXM0F243

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Table 17. CSD AND IDAC SPECIFICATIONS

Parameter

Details / Conditions

Units

Max

Typ

Min

Description

IDAC2CRT2

Output current of IDAC2 (7 bits) in medium

range

–

LSB = 300−nA typ.

IDAC2CRT3

Output current of IDAC2 (7 bits) in high range

275

–

330

LSB = 2.4−mA typ.

IDAC2CRT12

Output current of IDAC2 (7 bits) in low range, 2X

mode

–

10.5

LSB = 75−nA typ.

IDAC2CRT22

Output current of IDAC2(7 bits) in medium

range, 2X mode

–

LSB = 600−nA typ.

IDAC2CRT32

Output current of IDAC2(7 bits) in high range,

2X mode

540

–

660

LSB = 4.8−mA typ.

IDAC3CRT13

Output current of IDAC in 8−bit mode in low

range

–

10.5

LSB = 37.5−nA typ.

IDAC3CRT23

Output current of IDAC in 8−bit mode in medium

range

–

LSB = 300−nA typ.

IDAC3CRT33

Output current of IDAC in 8−bit mode in high

range

540

–

660

LSB = 2.4−mA typ.

IDACOFFSET

All zeroes input

–

LSB

Polarity set by Source or

Sink. Offset is 2 LSBs for

37.5 nA/LSB mode

IDACGAIN

Full−scale error less offset

–

±10

IDACMISMATCH1 Mismatch between IDAC1 and IDAC2 in Low

mode

–

9.2

LSB

LSB = 37.5−nA typ.

IDACMISMATCH2 Mismatch between IDAC1 and IDAC2 in Medi-

um mode

–

5.6

LSB

LSB = 300−nA typ.

IDACMISMATCH3 Mismatch between IDAC1 and IDAC2 in High

mode

–

6.8

LSB

LSB = 2.4−mA typ.

IDACSET8

Settling time to 0.5 LSB for 8−bit IDAC

–

Full−scale transition. No

external load.

IDACSET7

Settling time to 0.5 LSB for 7−bit IDAC

–

Full−scale transition. No

external load.

CMOD

External modulator capacitor.

–

2.2

–

5−V rating, X7R or NP0

cap.

Table 18. 10−BIT CSD ADC SPECIFICATIONS

Parameter

Description

Min

Typ

Max

Units

Details/ Conditions

A_RES

Resolution

–

bits

Auto−zeroing is required

every millisecond

A_CHNLS_S

Number of channels − single ended

–

Defined by AMUX Bus.

A−MONO

Monotonicity

–

Yes

A_GAINERR

Gain error

–

±2

In VREF (2.4 V) mode with

VDDD bypass capacitance

of 10 mF

A_OFFSET

Input offset voltage

–

In VREF (2.4 V) mode with

VDDD bypass capacitance

of 10 mF

A_ISAR

Current consumption

–

0.25

A_VINS

Input voltage range − single ended

VSSA

–

VDDD

A_INRES

Input resistance

–

2.2

–

A_INCAP

Input capacitance

–

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