ADC12130_06 datasheet(6/42 Pages) NSC | Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold

6 page

Converter Electrical Characteristics (Continued)

The following specifications apply for (V

+ =V

A+=VD+ = +5V, VREF+ = +4.096V, and fully differential input with fixed 2.048V

common-mode voltage) or (V

+ =V

A+=VD+ = 3.3V, VREF+ = 2.5V and fully-differential input with fixed 1.250V common-mode

voltage), V

REF− = 0V, 12-bit + sign conversion mode, source impedance for analog inputs, VREF

− and V

REF

≤ 25Ω,f

CK =fSK =

5 MHz, and 10 (t

CK) acquisition time unless otherwise specified. Boldface limits apply for TA =TJ =TMIN to TMAX; all other

limits T

A =TJ = 25˚C. (Notes 7, 8, 9)

Symbol

Parameter

Conditions

Typical

(Note 10)

Limits

(Note 11)

Units

(Limits)

UNIPOLAR DYNAMIC CONVERTER CHARACTERISTICS

S/(N+D)

Signal-to-Noise Plus Distortion Ratio

IN = 1 kHz, VIN =5VPP,VREF

+ = 5.0V

69.4

IN = 20 kHz, VIN =5VPP,VREF

+ = 5.0V

68.3

IN = 40 kHz, VIN =5VPP,VREF+ = 5.0V

65.7

−3 dB Full Power Bandwidth

IN =5VPP, where S/(N+D) drops 3 dB

kHz

DIFFERENTIAL DYNAMIC CONVERTER CHARACTERISTICS

IN = 1 kHz, VIN = ±5V, VREF

+ = 5.0V

77.0

S/(N+D)

Signal-to-Noise Plus Distortion Ratio

IN = 20 kHz, VIN = ±5V, VREF

+ = 5.0V

73.9

IN = 40 kHz, VIN = ±5V, VREF

+ = 5.0V

67.0

−3 dB Full Power Bandwidth

IN = ±5V, where S/(N+D) drops 3 dB

kHz

REFERENCE INPUT, ANALOG INPUTS AND MULTIPLEXER CHARACTERISTICS

REF

Reference Input Capacitance

A/D

A/DIN1 and A/DIN2 Analog Input

Capacitance

A/DIN1 and A/DIN2 Analog Input

Leakage Current

IN = +5.0V or VIN =0V

±0.1

µA

CH0–CH7 and COM Input Voltage

GND − 0.05

A+) + 0.05

V (min)

V (max)

CH0–CH7 and COM Input

Capacitance

MUXOUT MUX Output Capacitance

Off Channel Leakage (Note 16)

CH0–CH7 and COM Pins

On Channel = 5V and

Off Channel = 0V

−0.01

µA

On Channel = 0V and

Off Channel = 5V

0.01

µA

On Channel Leakage (Note 16)

CH0–CH7 and COM Pins

On Channel = 5V and

Off Channel = 0V

0.01

µA

On Channel = 0V and

Off Channel = 5V

−0.01

µA

MUXOUT1 and MUXOUT2 Leakage

Current

MUXOUT = 5.0V or VMUXOUT = 0V

0.01

µA

MUX On Resistance

IN = 2.5V and

MUXOUT = 2.4V

850

1900

Ω (max)

ON Matching Channel to Channel

IN = 2.5V and

MUXOUT = 2.4V

Channel-to-Channel Crosstalk

IN =5VPP,fIN = 40 kHz

−72

MUX Bandwidth

kHz

Part Number	Components Description	Html View	Manufacturer
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