LPC47M192 datasheet(222/228 Pages) SMSC

222 / 228 page

SMSC DS – LPC47M192

Page 222

Rev. 03/30/05

DATASHEET

15 APPENDIX B – ADC VOLTAGE CONVERSION

Table 78

− Analog-to-Digital Conversions for Hardware Monitoring Block

Input Voltage

A/D Output

12 VIN

5 VIN

VCC/3.3 VIN

2.5 VIN

1.8 VIN

1.5 VIN

VCCPIN

Decimal

Binary

<0.062

<0.026

<0.0172

<0.013

<0.009

<0.008

<0.012

0000 0000

0.062–0.125

0.026–0.052

0.017–0.034

0.013–0.026

0.009-0.019

0.008-0.016

0.012–0.023

0000 0001

0.125–0.188

0.052–0.078

0.034–0.052

0.026–0.039

0.019-0.028

0.016-0.023

0.023–0.035

0000 0010

0.188–0.250

0.078–0.104

0.052–0.069

0.039–0.052

0.028-0.038

0.023-0.031

0.035–0.047

0000 0011

0.250–0.313

0.104–0.130

0.069–0.086

0.052–0.065

0.038-0.047

0.031-0.039

0.047–0.058

0000 0100

0.313–0.375

0.130–0.156

0.086–0.103

0.065–0.078

0.047-0.056

0.039-0.047

0.058–0.070

0000 0101

0.375–0.438

0.156–0.182

0.103–0.120

0.078–0.091

0.056-0.066

0.047-0.055

0.070–0.082

0000 0110

0.438–0.500

0.182–0.208

0.120–0.138

0.091–0.104

0.066-0.075

0.055-0.063

0.082–0.093

0000 0111

0.500–0.563

0.208–0.234

0.138–0.155

0.104–0.117

0.075-0.084

0.063-0.070

0.093–0.105

0000 1000

…

4.000–4.063

1.666–1.692

1.100–1.117

0.833–0.846

0.600-0.609

0.500-0.508

0.749–0.761

64 (1/4 Scale) 0100 0000

…

8.000–8.063

3.330–3.560

2.200–2.217

1.667–1.680

1.200-1.209

1.000-1.008

1.499–1.511

128 (1/2 Scale) 1000 0000

…

12.000–12.063

5.000–5.026

3.300–3.317

2.500–2.513

1.800-1.809

1.500-1.508

2.249–2.261

192 (3/4 Scale) 1100 0000

…

15.312–15.375

6.380–6.406

4.210–4.230

3.190–3.203

2.297-2.306

1.914-1.922

2.869–2.881

245

1111 0101

15.375–15.437

6.406–6.432

4.230–4.245

3.203–3.216

2.306-2.316

1.922-1.930

2.881–2.893

246

1111 0110

15.437–15.500

6.432–6.458

4.245–4.263

3.216–3.229

2.316-2.325

1.930-1.938

2.893–2.905

247

1111 0111

15.500–15.563

6.458–6.484

4.263–4.280

3.229–3.242

2.325-2.334

1.938-1.945

2.905–2.916

248

1111 1000

15.625–15.625

6.484–6.510

4.280–4.300

3.242–3.255

2.334-2.344

1.945-1.953

2.916–2.928

249

1111 1001

15.625–15.688

6.510–6.536

4.300–4.314

3.255–3.268

2.344-2.353

1.953-1.961

2.928–2.940

250

1111 1010

15.688–15.750

6.536–6.562

4.314–4.330

3.268–3.281

2.353-2.363

1.961-1.969

2.940–2.951

251

1111 1011

15.750–15.812

6.562–6.588

4.331–4.348

3.281–3.294

2.363-2.372

1.969-1.977

2.951–2.964

252

1111 1100

15.812–15.875

6.588–6.615

4.348–4.366

3.294–3.307

2.372-2.381

1.977-1.984

2.964–2.975

253

1111 1101

15.875–15.938

6.615–6.640

4.366–4.383

3.307–3.320

2.381-2.391

1.984-1.992

2.975–2.987

254

1111 1110

>15.938

>6.640

>4.383

>3.320

>2.391

>1.992

>2.988

255

1111 1111

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