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ADC12DL040

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SNAS250D – FEBRUARY 2005 – REVISED APRIL 2013

Converter Electrical Characteristics

(1) (2) (3)

Typical

Limits

Units

Symbol

Parameter

Conditions

(4)

(4)

(Limits)

STATIC CONVERTER CHARACTERISTICS

Resolution with No Missing Codes

12

Bits (min)

INL

±0.8

± 2.6

LSB (max)

DNL

Differential Non Linearity

±0.3

+0.96, -0.9

LSB (max)

PGE

Positive Gain Error

±0.2

+2.5, -3.3

%FS (max)

NGE

Negative Gain Error

±0.2

±3.6

%FS (max)

TC GE

Gain Error Tempco

5

ppm/°C

0.1

±0.8

%FS (max)

Offset Error Tempco

3

ppm/°C

Under Range Output Code

0

0

Over Range Output Code

4095

4095

REFERENCE AND ANALOG INPUT CHARACTERISTICS

0.5

V (min)

Common Mode Input Voltage

1.5

2.0

V (max)

Reference Output Voltage

Output load = 1 mA

1.5

V

(CLK LOW)

8

pF

(CLK HIGH)

7

pF

0.8

V (min)

1.00

1.2

V (max)

Reference Input Resistance

1

M

Ω (min)

DYNAMIC CONVERTER CHARACTERISTICS

FPBW

Full Power Bandwidth

0 dBFS Input, Output at

−3 dB

250

MHz

69

dB

SNR

Signal-to-Noise Ratio

69

67.5

dB (min)

68.5

66.5

dB

(1)

current is limited per Note 4 under Absolute Maximum Ratings. However, errors in the A/D conversion can occur if the input goes above

conversions.

(2)

(3)

(4)

Quality Level).

(5)

Integral Non Linearity is defined as the deviation of the analog value, expressed in LSBs, from the straight line that passes through

positive and negative full-scale.

(6)

Optimum performance will be obtained by keeping the reference input in the 0.8V to 1.2V range. The LM4051CIM3-ADJ (SOT-23

package) is recommended for external reference applications.

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