参数资料
| 型号： | MCP4921-E/MC |
| 厂商： | Microchip Technology |
| 文件页数： | 18/22页 |
| 文件大小： | 0K |
| 描述： | DAC 12BIT SGL W/SPI 8DFN |
| 标准包装： | 150 |
| 设置时间： | 4.5µs |
| 位数： | 12 |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN（2x3） |
| 包装： | 管件 |
| 输出数目和类型： | 1 电压，单极；1 电压，双极 |
| 采样率（每秒）： | * |
| 产品目录页面： | 673 (CN2011-ZH PDF) |
MCP4901/4911/4921
DS22248A-page 4
2010 Microchip Technology Inc.
Offset Error
VOS
—
±0.02
1
% of
FSR
Code = 0x000h
Offset Error Temperature
Coefficient
VOS/°C
—
0.16
—
ppm/°C
-45°C to 25°C
—
-0.44
—
ppm/°C
+25°C to 85°C
Gain Error
gE
—
-0.10
1
% of
FSR
Code = 0xFFFh, not including
offset error
Gain Error Temperature
Coefficient
G/°C
—
-3
—
ppm/°C
Input Amplifier (VREF Input)
Input Range – Buffered
Mode
VREF
0.040
—
VDD –
0.040
V
Code = 2048
VREF = 0.2 Vp-p, f = 100 Hz and
1kHz
Input Range – Unbuffered
Mode
VREF
0—
VDD
V
Input Impedance
RVREF
—165
—
k
Unbuffered Mode
Input Capacitance –
Unbuffered Mode
CVREF
—7
—
pF
Multiplier Mode
-3 dB Bandwidth
fVREF
—450
—
kHz
VREF = 2.5V ±0.2Vp-p,
Unbuffered, G = 1
fVREF
—400
—
kHz
VREF = 2.5V ±0.2 Vp-p,
Unbuffered, G = 2
Multiplier Mode –
Total Harmonic Distortion
THDVREF
—-73
—
dB
VREF = 2.5V ±0.2Vp-p,
Frequency = 1 kHz
Output Amplifier
Output Swing
VOUT
—
0.01 to
VDD –
0.04
—
V
Accuracy is better than 1 LSb for
VOUT = 10 mV to (VDD – 40 mV)
Phase Margin
m
—
66
—
Degrees
Slew Rate
SR
—
0.55
—
V/s
Short Circuit Current
ISC
—15
24
mA
Settling Time
tsettling
—
4.5
—
s
Within 1/2 LSB of final value from
1/4 to 3/4 full-scale range
Dynamic Performance (Note 2)
DAC-to-DAC Crosstalk
—
10
—
nV-s
Major Code Transition
Glitch
—
45
—
nV-s
1 LSB change around major carry
(0111...1111 to 1000...0000)
Digital Feedthrough
—
10
—
nV-s
Analog Crosstalk
—
10
—
nV-s
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, VDD = 5V, VSS = 0V, VREF = 2.048V, Output Buffer Gain
(G) = 2x, RL = 5 k to GND, CL = 100 pF TA = -40 to +85°C. Typical values are at +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1:
Guaranteed monotonic by design over all codes.
2:
This parameter is ensured by design, and not 100% tested.
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