参数资料
型号: SX8723CWLTDT
厂商: Semtech
文件页数: 45/67页
文件大小: 0K
描述: IC DAS ADC 16BIT I2C/SRL
标准包装: 1
系列: ZoomingADC™
类型: 数据采集系统(DAS)
输入类型: 差分
输出类型: 数字
接口: I²C
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
供应商设备封装: 12-MLPD-EP(4x4)
包装: 标准包装
其它名称: SX8723CWLTDTDKR
www.semtech.com/products/
Page 5
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8723C
ZoomingADC for sensing data acquisition
Revision 1.01
January 2011
Semtech
2 Operating Conditions
Unless otherwise specified: VREF,ADC = VBATT, VIN = 0V, Over-sampling frequency fS = 250 kHz, PGA3 on with Gain = 1,
PGA1&PGA2 off, offsets GDOff2 = GDOff3 = 0. Power operation: normal (IbAmpAdc[1:0] = IbAmpPga[1:0] = '01').
For resolution n = 12 bits: OSR = 32 and NELCONV = 4.
For resolution n = 16 bits: OSR = 256 and NELCONV = 2.
Bandgap chopped at NELCONV rate. If VBATT < 4.2V, Charge Pump is forced on. If VBATT > 4.2V, Charge Pump is forced off.
.
Table 2.
Operating conditions limits
Parameter
Symbol
Comment/Condition
Min
Typ
Max
Unit
Power supply
VBATT
2.4
5.5
V
Operating temperature
TOP
-40
125
°C
Table 3.
Electrical Characteristics
Parameter
Symbol
Comment/Condition
Min
Typ
Max
Unit
CURRENT CONSUMPTION1
Active current, 5.5V
IOP55
16 b @ 250 Sample/s
ADC, fs = 125 kHz
250
350
μA
16 b @ 1kSample/s
PGA3 + ADC, fs = 500 kHz
700
900
16 b + gain 1000 @ 1kSample/s
PGA3,2,1 + ADC, fs = 500 kHz
1000
1350
Active current, 3.3V
IOP33
16 b @ 250 Sample/s
ADC, fs = 125 kHz
150
μA
16 b @ 1 kSample/s
PGA3 + ADC, fs = 500 kHz
300
16 b + gain 1000 @ 1kSample/s
PGA3,2,1 + ADC, fs = 500 kHz
850
Sleep current
ISLEEP
@25°C
75
nA
up to 85°C
100
@125°C
150
200
TIME BASE
Max ADC Over-Sampling frequency
fSmax
@25°C
425
500
575
kHz
ADC Over-Sampling frequency drift
fST
0.15
% / °C
DIGITAL I/O
Input logic high
VIH
0.7
VBATT
Input logic low
VIL
0.3
VBATT
Output logic high
VOH
IOH < 4 mA
VBATT-0.4
V
Output logic low
VOL
IOL < 4 mA
0.4
V
SCL and SDA I/O
Input logic high
VIH
0.7
VBATT
Not
Recommended
for
New
Designs
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