ST92141 datasheet(171/179 Pages) STMICROELECTRONICS

171 / 179 page

171/179

ST92141 - ELECTRICAL CHARACTERISTICS

A/D ANALOG SPECIFICATIONS

(VDD = 5V, TA = 25°C, fINTCLK = 25MHz, unless otherwise specified)

Note:

(1) “1LSBideal” has a value of AVDD/256

(2) Including sample time

(3) This is the internal series resistance before the sampling capacitor

(4) This is a typical expected value, but not a tested production parameter.

If V(i) is the value of the i-th transition level (0

≤ i ≤ 254), the performance of the A/D converter has been evaluated as follows:

OFFSET ERROR= deviation between the actual V(0) and the ideal V(0) (=1/2 LSB)

GAIN ERROR= deviation between the actual V(254) and the ideal V(254) - V(0) (ideal V(254)=AV DD-3/2 LSB)

DNL ERROR= max {[V(i) - V(i-1)]/LSB - 1}

INL ERROR= max {[V(i) - V(0)]/LSB - i}

ABS. ACCURACY= overall max conversion error

(5) Simulated value.

(6) The specified values are guaranteed only if an overload condition occurs on a maximum of 2 non-selected analog input pins and the

absolute sum of input overload currents on all analog input pins does not exceed

±10 mA.

Parameter

Typical

Minimum

Maximum

Units (1)

Notes

Conversion time

138

INTCLK

(2)(6)

Sample time

INTCLK

(6)

Power-up time

µs

(6)

Resolution

bits

Monotonicity

GUARANTEED

No missing codes

GUARANTEED

Zero input reading

Hex

(6)

Full scale reading

Hex

(6)

Offset error

LSBs

(1)(4)(6)

Gain error

LSBs

(4)(6)

Diff. Non Linearity error (DNL)

LSBs

(4)(6)

Int. Non Linearity error (INL)

LSBs

(4)(6)

Absolute Accuracy

LSBs

(4)(6)

Input Resistance

2.7

Ω

(3)(5)(6)

Hold Capacitance

1.4

(5)(6)

Input Leakage

±1

µA

(6)

ST92141 数据表(PDF) 171 Page - STMicroelectronics

ST92141 数据表(HTML) 171 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

ST92141 数据表(PDF) 171 Page - STMicroelectronics

ST92141 数据表(HTML) 171 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载