XE8000EV120 Semtech, XE8000EV120 Datasheet - Page 7

• Manufacturer Part Number: XE8000EV120
• Description: BOARD EVAL FOR SX8722I070TRLF
• Manufacturer: Semtech
• Series: ZoomingADC™r

Specifications of XE8000EV120

• Number Of Adc's: 1
• Number Of Bits: 16
• Data Interface: I²C
• Inputs Per Adc: 7 Single or 4 Differential
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: SX8722
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: XM8000EV120; XM8000EV120

(1) With external 32.768kHz Xtal connected
(2) Without external 32.768kHz Xtal connected
1.3. ZoomingADC Specifications
Unless otherwise specified: Temperature T
2MHz, sampling frequency f
(IB_AMP_ADC[1:0] = IB_AMP_PGA[1:0] = '11'). For resolution n = 12 bits: OSR = 32 and N
bits: OSR = 512 and N
ACS - Revision 4.2
©2008 Semtech Corp.
ANALOG INPUT CHARACTERISTICS
Differential Input Voltage Range
V
Reference Voltage Range
V
PROGRAMMABLE GAIN AMPLIFIER
Total PGA Gain
PGA1 Gain
PGA2 Gain
PGA3 Gain
Gain Settings Precision (each stage)
Gain Temperature Dependance Offset
PGA2 Offset
PGA3 Offset
Offset Settings Precision
(PGA2 or PGA3)
Offset Temperature Dependance
Input Impedance PGA1
Input Impedance PGA2 ,PGA3
Output RMS Noise
ADVANCED COMMUNICATIONS & SENSING
IN
REF,ADC
= V
INP
= V
-V
PARAMETER
INN
REFP
-V
REFN
ELCONV
S
= 300 kHz, Overall PGA gain GD
= 2.
October 2008
GD
GD
GD
GD
GD
GD
TOT
1
2
3
off2
off3
A
= +25°C, V
Gain = 1, OSR = 32 (Note 1)
Gain = 100, OSR = 32
Gain = 1000, OSR = 32
See Table 15
See Table 16
Step = 1/12 V/V, See Table 47
Step = 0.2 V/V, See Table 46
Step = 1.12 V/V, See Table 48
(note 2)
PGA1 Gain = 1 (Note 3)
PGA1 Gain = 10 (Note 3)
Maximal gain = 1 (Note 3)
PGA1 (Note 4)
PGA2 (Note 5)
PGA3 (Note 6)
COMMENTS/CONDITIONS
BATT
Page 7
= +5V, GND = 0V, V
TOT
= 1, offsets GD
High gain acquisition for sensor interface
REF
-63/12
Off2
-2.42
-24.2
-2.42
1500
MIN
150
150
0.5
-3
-1
-3
1
1
= +5V, V
= GD
ELCONV
Off3
VALUE
+/- 0.5
+/- 0.5
+/- 5
TYP
+/-5
205
340
365
IN
= 0. Power operation: normal
= 0V, RC frequency f
= 4. For resolution n = 16
DATASHEET
127/12
+63/12
V
+2.42
+24.2
+2.42
MAX
1000
www.semtech.com
SX8722
BATT
10
10
+3
+1
+3
ppm / °C
ppm / °C
UNITS
V/V
V/V
V/V
V/V
V/V
V/V
mV
mV
kΩ
kΩ
kΩ
μV
μV
μV
%
RC
%
V
V
=