ZHCSEU3E 数据表 | 德州仪器 TI.com.cn

ZHCSEU3E July 2014 – June 2022 ADC3221 , ADC3222 , ADC3223 , ADC3224

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

RGZ|48
- MPQF123F

散热焊盘机械数据 (封装 | 引脚)

RGZ|48
- QFND131R

订购信息

6.8 AC Performance: ADC3221

At maximum sampling rate, 50% clock duty cycle, AVDD = DVDD = 1.8 V, and –1-dBFS differential input. Typical values are specified at an ambient temperature of 25°C. Minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C (unless otherwise noted).

PARAMETER		TEST CONDITIONS	ADC3221 (f_S = 25 MSPS)						UNIT
			DITHER ON			DITHER OFF
			MIN	TYP	MAX	MIN	TYP	MAX
DYNAMIC AC CHARACTERISTICS
SNR	Signal-to-noise ratio (from 1-MHz offset)	f_IN = 10 MHz		70.9			71.2		dBFS
		f_IN = 20 MHz	68.5	70.8			71.1
		f_IN = 70 MHz		70.6			70.9
		f_IN = 100 MHz		70.3			70.6
		f_IN = 170 MHz		69.7			69.9
		f_IN = 230 MHz		68.8			69
	Signal-to-noise ratio (full Nyquist band)	f_IN = 10 MHz		70.2			70.6		dBFS
		f_IN = 20 MHz		70.2			70.5
		f_IN = 70 MHz		69.9			70.2
		f_IN = 100 MHz		69.6			69.9
		f_IN = 170 MHz		69.2			69.3
		f_IN = 230 MHz		68.2			68.4
NSD⁽¹⁾	Noise spectral density (averaged across Nyquist zone)	f_IN = 10 MHz		–141.9			–142.2		dBFS/Hz
		f_IN = 20 MHz		–141.8	–139.5		–142.1
		f_IN = 70 MHz		–141.6			–141.9
		f_IN = 100 MHz		–141.3			–141.6
		f_IN = 170 MHz		–140.7			–140.9
		f_IN = 230 MHz		–139.8			–140.0
SINAD⁽¹⁾	Signal-to-noise and distortion ratio	f_IN = 10 MHz		70.9			71.1		dBFS
		f_IN = 20 MHz	68.1	70.8			71
		f_IN = 70 MHz		70.6			70.7
		f_IN = 100 MHz		70.2			70.3
		f_IN = 170 MHz		69.6			69.6
		f_IN = 230 MHz		68.5			68.5
ENOB⁽¹⁾	Effective number of bits	f_IN = 10 MHz		11.5			11.5		Bits
		f_IN = 20 MHz	11	11.5			11.5
		f_IN = 70 MHz		11.4			11.5
		f_IN = 100 MHz		11.4			11.4
		f_IN = 170 MHz		11.3			11.3
		f_IN = 230 MHz		11.1			11.1
SFDR	Spurious-free dynamic range	f_IN = 10 MHz		96			88		dBc
		f_IN = 20 MHz	82	93			89
		f_IN = 70 MHz		93			87
		f_IN = 100 MHz		85			82
		f_IN = 170 MHz		86			83
		f_IN = 230 MHz		81			80
HD2	Second-order harmonic distortion	f_IN = 10 MHz		106			97		dBc
		f_IN = 20 MHz	82	102			95
		f_IN = 70 MHz		101			95
		f_IN = 100 MHz		95			93
		f_IN = 170 MHz		88			87
		f_IN = 230 MHz		81			81
HD3	Third-order harmonic distortion	f_IN = 10 MHz		96			88		dBc
		f_IN = 20 MHz	82	93			92
		f_IN = 70 MHz		93			87
		f_IN = 100 MHz		85			82
		f_IN = 170 MHz		87			83
		f_IN = 230 MHz		82			80
Non HD2, HD3	Spurious-free dynamic range (excluding HD2, HD3)	f_IN = 10 MHz		99			92		dBc
		f_IN = 20 MHz	87	101			91
		f_IN = 70 MHz		99			93
		f_IN = 100 MHz		98			92
		f_IN = 170 MHz		99			92
		f_IN = 230 MHz		97			93
THD	Total harmonic distortion	f_IN = 10 MHz		94			85		dBc
		f_IN = 20 MHz	80	92			85
		f_IN = 70 MHz		91			85
		f_IN = 100 MHz		86			82
		f_IN = 170 MHz		84			81
		f_IN = 230 MHz		78			77
IMD3	Two-tone, third-order intermodulation distortion	f_IN1 = 45 MHz, f_IN2 = 50 MHz		–95			–94		dBFS
IMD3	Two-tone, third-order intermodulation distortion	f_IN1 = 185 MHz, f_IN2 = 190 MHz		–90			–89		dBFS

(1) Reported from a 1-MHz offset.