ZHCUB80C August 2004 – July 2023 PGA309
位编号 | D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 |
位名 | 0WD | GO2 | GO1 | GO0 | GI3 | GI2 | GI1 | GI0 | RFB | RFB | RFB | OS4 | OS3 | OS2 | OS1 | OS0 |
POR 值 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
位说明:
OWD:单线制禁用(仅在启用 VOUT 时有效,当 PRG 连接到 VOUT 时使用)
1 = 禁用
0 = 启用
GO[2:0]:输出放大器增益选择,1/7 加内部反馈禁用
GI[3:0]:前端 PGA 增益选择,1/8,输入多路复用器控制
GI[3] = 输入多路复用器控制
GI[2:0] = 增益选择
RFB:保留出厂位:设置为零以确保正常运行
OS[4:0]:前端 PGA 上的粗略失调电压调整,4 位 + 符号
1LSB = (VREF)(0.85E − 3)
GO2 [14] | GO1 [13] | GO0 [12] | 输出放大器增益 |
---|---|---|---|
0 | 0 | 0 | 2 |
0 | 0 | 1 | 2.4 |
0 | 1 | 0 | 3 |
0 | 1 | 1 | 3.6 |
1 | 0 | 0 | 4.5 |
1 | 0 | 1 | 6 |
1 | 1 | 0 | 9 |
1 | 1 | 1 | 禁用内部反馈 |
GI2 GAIN SEL2 [10] | GI1 GAIN SEL1 [9] | GI0 GAIN SEL0 [8] | 前端 PGA 增益 |
---|---|---|---|
0 | 0 | 0 | 4 |
0 | 0 | 1 | 8 |
0 | 1 | 0 | 16 |
0 | 1 | 1 | 23.27 |
1 | 0 | 0 | 32 |
1 | 0 | 1 | 42.67 |
1 | 1 | 0 | 64 |
1 | 1 | 1 | 128 |
GI3 MUX CNTL | 输入多路复用器状态(1) |
---|---|
0 | VIN1 = VINP,VIN2 = VINN |
1 | VIN1 = VINN,VIN2 = VINP |
OS4 [4] | OS3 [3] | OS2 [2] | OS1 [1] | OS0 [0] | 粗略失调电压 (mV) | 粗略失调电压 |
---|---|---|---|---|---|---|
1 | 1 | 1 | 1 | 1 | -59.5 | −14 (VREF)(0.85E − 3) |
1 | 1 | 1 | 1 | 0 | -55.25 | −13 (VREF)(0.85E − 3) |
1 | 1 | 1 | 0 | 1 | -51 | −12 (VREF)(0.85E − 3) |
1 | 1 | 1 | 0 | 0 | -46.75 | −11 (VREF)(0.85E − 3) |
1 | 1 | 0 | 1 | 1 | -42.5 | −10 (VREF)(0.85E − 3) |
1 | 1 | 0 | 1 | 0 | -38.25 | −9 (VREF)(0.85E − 3) |
1 | 1 | 0 | 0 | 1 | -34 | −8 (VREF)(0.85E − 3) |
1 | 1 | 0 | 0 | 0 | -29.75 | −7 (VREF)(0.85E − 3) |
1 | 0 | 1 | 1 | 1 | -29.75 | −7 (VREF)(0.85E − 3) |
1 | 0 | 1 | 1 | 0 | -25.5 | −6 (VREF)(0.85E − 3) |
1 | 0 | 1 | 0 | 1 | -21.25 | −5 (VREF)(0.85E − 3) |
1 | 0 | 1 | 0 | 0 | -17 | −4 (VREF)(0.85E − 3) |
1 | 0 | 1 | 0 | 1 | -12.75 | −3 (VREF)(0.85E − 3) |
1 | 0 | 0 | 1 | 0 | -8.5 | −2 (VREF)(0.85E − 3) |
1 | 0 | 0 | 0 | 1 | -4.25 | −1 (VREF)(0.85E − 3) |
1 | 0 | 0 | 0 | 0 | 0 | 0VREF |
0 | 0 | 0 | 0 | 0 | 0 | 0VREF |
0 | 0 | 0 | 0 | 1 | +4.25 | +1 (VREF)(0.85E − 3) |
0 | 0 | 0 | 1 | 0 | +8.5 | +2 (VREF)(0.85E − 3) |
0 | 0 | 0 | 1 | 1 | +12.75 | +3 (VREF)(0.85E − 3) |
0 | 0 | 1 | 0 | 0 | +17 | +4 (VREF)(0.85E − 3) |
0 | 0 | 1 | 0 | 1 | +21.25 | +5 (VREF)(0.85E − 3) |
0 | 0 | 1 | 1 | 0 | +25.5 | +6 (VREF)(0.85E − 3) |
0 | 0 | 1 | 1 | 1 | +29.75 | +7 (VREF)(0.85E − 3) |
0 | 1 | 0 | 0 | 0 | +29.75 | +7 (VREF)(0.85E − 3) |
0 | 1 | 0 | 0 | 1 | +34 | +8 (VREF)(0.85E − 3) |
0 | 1 | 0 | 1 | 0 | +38.25 | +9 (VREF)(0.85E − 3) |
0 | 1 | 0 | 1 | 1 | +42.5 | +10 (VREF)(0.85E − 3) |
0 | 1 | 1 | 0 | 0 | +46.75 | +11 (VREF)(0.85E − 3) |
0 | 1 | 1 | 0 | 1 | +51 | +12 (VREF)(0.85E − 3) |
0 | 1 | 1 | 1 | 0 | +55.25 | +13 (VREF)(0.85E − 3) |
0 | 1 | 1 | 1 | 1 | +59.5 | +14 (VREF)(0.85E − 3) |