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ZHCSF09A May 2016 – October 2024 FDC2112-Q1 , FDC2114-Q1 , FDC2212-Q1 , FDC2214-Q1

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

RGH|16
- MPQF182B

散热焊盘机械数据 (封装 | 引脚)

RGH|16
- QFND440A

订购信息

5.5 Electrical Characteristics

Unless otherwise specified, all limits ensured for T_A = 25°C, VDD = 3.3V⁽¹⁾

PARAMETER		TEST CONDITIONS⁽²⁾	MIN⁽³⁾	TYP⁽⁴⁾	MAX⁽³⁾	UNIT
POWER
V_DD	Supply voltage	T_A = –40°C to 125°C	2.7		3.6	V
I_DD	Supply current (not including sensor current)⁽⁵⁾	CLKIN = 10MHz⁽⁶⁾		2.1		mA
I_DDSL	Sleep mode supply current⁽⁵⁾			35	60	µA
I_SD	Shutdown mode supply current⁽⁵⁾			0.2	1	µA
CAPACITIVE SENSOR
C_SENSORMAX	Maximum sensor capacitance	1-mH inductor, 10kHz oscillation		250		nF
C_IN	Sensor pin parasitic capacitance			4		pF
N_BITS	Number of bits	FDC2112, FDC2114 RCOUNT ≥ 0x0400			12	bits
N_BITS	Number of bits	FDC2212, FDC2214 RCOUNT = 0xFFFF			28	bits
f_CS	Maximum channel sample rate	FDC2112, FDC2114 single active channel continuous conversion, SCL = 400kHz			13.3	kSPS
f_CS	Maximum channel sample rate	FDC2212, FDC2214 single active channel continuous conversion, SCL= 400kHz			4.08	kSPS
EXCITATION
f_SENSOR	Sensor excitation frequency	T_A = –40°C to 125°C	0.01		10	MHz
V_SENSORMIN	Minimum sensor oscillation amplitude (pk)⁽⁷⁾			1.2		V
V_SENSORMAX	Maximum sensor oscillation amplitude (pk)			1.8		V
I_SENSORMAX	Sensor maximum current drive	HIGH_CURRENT_DRV = b0 DRIVE_CURRENT_CH0 = 0xF800		1.5		mA
I_SENSORMAX	Sensor maximum current drive	HIGH_CURRENT_DRV = b1 DRIVE_CURRENT_CH0 = 0xF800 Channel 0 only		6		mA
CONTROLLER CLOCK
f_CLKIN	External controller clock input frequency (CLKIN)	T_A = –40°C to 125°C	2		40	MHz
CLKIN_{DUTY_MIN}	External controller clock minimum acceptable duty cycle (CLKIN)			40%
CLKIN_{DUTY_MAX}	External controller clock maximum acceptable duty cycle (CLKIN)			60%
V_{CLKIN_LO}	CLKIN low voltage threshold				0.3V_DD	V
V_{CLKIN_HI}	CLKIN high voltage threshold		0.7 × V_DD			V
f_INTCLK	Internal controller clock frequency range		35	43.4	55	MHz
T_{Cf_int_μ}	Internal controller clock temperature coefficient mean			–13		ppm/°C

(1) Electrical Characteristics values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that T_J = T_A. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self-heating where T_J > T_A. Absolute Maximum Ratings indicate junction temperature limits beyond which the device can be permanently degraded, either mechanically or electrically.

(2) Register values are represented as either binary (b is the prefix to the digits), or hexadecimal (0x is the prefix to the digits). Decimal values have no prefix.

(3) Limits are specified by testing, design, or statistical analysis at 25°C. Limits over the operating temperature range are ensured through correlations using statistical quality control (SQC) method.

(4) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values can vary over time and also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material.

(5) I²C read/write communication and pullup resistors current through SCL, SDA not included.

(6) Sensor capacitor: 1 layer, 20.9 × 13.9mm, Bourns CMH322522-180KL sensor inductor with L=18µH and 33pF 1% COG/NP0 Target: Grounded aluminum plate (176 × 123mm), Channel = Channel 0 (continuous mode) CLKIN = 40MHz, CHx_FIN_SEL = b10, CHx_FREF_DIVIDER = b00 0000 0001 CH0_RCOUNT = 0xFFFF, SETTLECOUNT_CH0 = 0x0100, DRIVE_CURRENT_CH0 = 0x7800.

(7) Lower V_SENSORMIN oscillation amplitudes can be used, but will result in lower SNR.