米6体育平台手机版

PRODUCTION DATA.

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
E_I	Integral linearity error (INL) for differential input	With external voltage reference (ADC12VRSEL = 0x2, 0x3, 0x4, 0x14, 0x15), 1.2 V ≤ (V_R+ – V_R–) ≤ AV_CC			±1.8	LSB
E_I	Integral linearity error (INL) for single-ended inputs				±2.2	LSB
E_D	Differential linearity error (DNL)	With external voltage reference (ADC12VRSEL = 0x2, 0x3, 0x4, 0x14, 0x15)	–0.99		+1.0	LSB
E_O	Offset error ⁽¹⁾⁽²⁾	ADC12VRSEL = 0x1 without TLV calibration, TLV calibration data can be used to improve the parameter ⁽³⁾		±0.5	±1.5	mV
E_G	Gain error	With internal voltage reference VREF = 2.5 V (ADC12VRSEL = 0x1, 0x7, 0x9, 0xB, or 0xD)		±0.2%	±1.7%
		With internal voltage reference VREF = 1.2 V (ADC12VRSEL = 0x1, 0x7, 0x9, 0xB, or 0xD)		±0.2%	±2.5%
		With external voltage reference without internal buffer (ADC12VRSEL = 0x2 or 0x4) without TLV calibration, V_R+ = 2.5 V, V_R– = AVSS		±1	±3	LSB
		With external voltage reference with internal buffer (ADC12VRSEL = 0x3), V_R+ = 2.5 V, V_R– = AVSS		±2	±27	LSB
E_T	Total unadjusted error	With internal voltage reference VREF = 2.5 V (ADC12VRSEL = 0x1, 0x7, 0x9, 0xB, or 0xD)		±0.2%	±1.8%
		With internal voltage reference VREF = 1.2 V (ADC12VRSEL = 0x1, 0x7, 0x9, 0xB, or 0xD)		±0.2%	±2.6%
		With external voltage reference without internal buffer (ADC12VRSEL = 0x2 or 0x4) without TLV calibration, V_R+ = 2.5 V, V_R– = AVSS		±1	±5	LSB
		With external voltage reference with internal buffer (ADC12VRSEL = 0x3), V_R+ = 2.5 V, V_R– = AVSS		±1	±28	LSB

(1) Offset is measured as the input voltage (at which ADC output transitions from 0 to 1) minus 0.5 LSB.

(2) Offset increases as I_R drop increases when V_R– is AVSS.

Table 5-26 lists the dynamic performance characteristics when using an external reference.