ADS-117 Datel, Inc., ADS-117 Datasheet - Page 5

• Manufacturer Part Number: ADS-117
• Description: 2mhz, Low-power ADC: 12-bit
• Manufacturer: Datel, Inc.

®
UNIPOLAR
+FS – 1 LSB
+7/8 FS
+3/4 FS
+1/2 FS
+1/4 FS
+1/8 FS
+1 LSB
SCALE
0
–100
–110
–120
–130
–140
–10
–20
–30
–40
–50
–60
–70
–80
–90
INPUT RANGE
0
®
0
0 to +10V
+9.9976
+8.7500
+7.5000
+5.0000
+2.5000
+1.2500
+0.0024
0.0000
0.1
(fs = 2MHz, fin = 980kHz, Vin = –0.5dB, 4,096-point FFT)
MSB LSB
1111 1111 1111
1110 0000 0000
1100 0000 0000
1000 0000 0000
0100 0000 0000
0010 0000 0000
0000 0000 0001
0000 0000 0000
0.2
STRAIGHT BIN.
OFF. BINARY
Figure 5. FFT Analysis of ADS-117
OUTPUT CODING
0.3
Table 3. Output Coding
0.4
Frequency (MHz)
5
MSB
0000 0000 0000
0001 1111 1111
0011 1111 1111
0111 1111 1111
1011 1111 1111
1101 1111 1111
1111 1111 1110
1111 1111 1111
COMP. BINARY
0.5
COMP. OFF. BIN.
0.6
LSB
0.7
INPUT RANGE
+4.9976
+3.7500
+2.5000
–2.5000
–3.7500
–4.9976
–5.0000
0.8
0.0000
±5V
0.9
+FS –1 LSB
–FS+1LSB
1.0
BIPOLAR
+3/4FS
+1/2FS
–1/2FS
–3/4FS
SCALE
–FS
0
ADS-117