TLC4545 用于桥传感器的 18 位模数转换器

The TLC4541 and TLC4545 are a family of high performance, 16-bit, low power, miniature CMOS analog-to-digital converters (ADCs). These devices operate from a single 5-V supply. Devices are available with single, dual, or single pseudo-differential inputs. All of these devices have a chip select (CS)\, serial clock (SCLK), and serial data output (SDO) that provides a direct 3-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a DSP, a frame sync signal (FS) is used to indicate the start of a serial data frame on either pin 1 (CS)\ or pin 7 (FS) for the TLC4541. The TLC4545 ADC connects to the DSP via pin 1 only (CS)\.

The TLC4541 and TLC4545 are designed to operate with low power consumption.

	TLC2551	TLC2552	TLC2555	TLC3541	TLC3545	TLC4541	TLC4545	TLV2541	TLV2542	TLV2545
Resolution(Bits)	12	12	12	14	14	16	16	12	12	12
Sample Rate (max)	400kSPS	400kSPS	400kSPS	200kSPS	200kSPS	200kSPS	200kSPS	200kSPS	200kSPS	200kSPS
Architecture	SAR	SAR	SAR	SAR	SAR	SAR	SAR	SAR	SAR	SAR
Power Consumption(Typ)(mW)	15	15	15	17.5	17.5	17.5	17.5	2.8	2.8	2.8
SINAD(dB)	72	72	72	81.5	81.5	84.5	84.5	72	72	72
SNR(dB)				82	82	85	85
SFDR(dB)	84	84	84	95	95	95	95	84	84	84
DNL(Max)(+/-LSB)	1	1	1	1	1	2	2	1	1	1
INL(Max)(+/-LSB)	1	1	1	1	1	2.5	2.5	1	1	1
No Missing Codes(Bits)	12	12	12	14	14	16	16	12	12	12
No. of Supplies	1	1	1	1	1	1	1	1	1	1
Analog Voltage AV/DD(Min)(V)	4.5	4.5	4.5	4.5	4.5	4.5	4.5	2.7	2.7	2.7
Analog Voltage AV/DD(Max)(V)	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Logic Voltage DV/DD(Min)(V)	4.5	4.5	4.5	4.5	4.5	4.5	4.5	2.7	2.7	2.7
Logic Voltage DV/DD(Max)(V)	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Input Configuration Range	Vref	Vref	Vref	Vref	Vref	Vref	Vref	Vref	Vref	+5.5V(Vref=VDD)
Reference Mode	Ext	Ext	Ext	Ext	Ext	Ext	Ext	Ext	Ext	Ext
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	8MSOP, 8SOIC	8MSOP, 8SOIC	8MSOP, 8SOIC	8MSOP, 8SOIC	8MSOP, 8SOIC	8MSOP, 8SOIC	8SOIC, 8MSOP	8MSOP, 8SOIC	8MSOP, 8SOIC	8MSOP, 8SOIC
# Input Channels	1	2	1	1	1	1	1	1	2	1
Operating Temp Range(Celsius)	0 to 70,-40 to 85	-40 to 85,0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70

TLC4545 特性

200-KSPS Sampling Rate
Built-In Conversion Clock
INL: ±2.5 LSB Max, DNL: 2 to –1 LSB Max
SINAD = 84.5 dB, SFDR = 95 dB, THD = 94 dB at 15 kHz fin, 200 KSPS
SPI/DSP-Compatible Serial Interfaces With SCLK Input up to 15 MHz
Single 5-V Supply
Rail-to-Rail Analog Input With 500 kHz BW
Two Input Options Available:
- TLC4541 – Single Channel Input
- TLC4545 – Single Channel, Pseudo-differential Input
(TLC4541) Optimized DSP Interface – Requires FS Input Only
Low Power With Auto-Power Down
- Operating Current: 3.5 mA
- Auto-Power Down Current: 5 uA
Pin Compatible 12/14/16-Bit Family in 8-Pin SOIC and MSOP Packages
APPLICATIONS
- ATE System
- Industrial Process Control
- Measurement
- Motor Control

TLC4545 芯片订购指南

器件	状态	温度(oC)	价格（美元）	封装 \| 引脚
TLC4545ID	ACTIVE	-40 to 85	8.60 \| 1ku	SOIC(D) \| 8
TLC4545IDG4	ACTIVE	-40 to 85	8.60 \| 1ku	SOIC(D) \| 8
TLC4545IDGK	ACTIVE	-40 to 85	8.60 \| 1ku	MSOP(DGK) \| 8
TLC4545IDGKG4	ACTIVE	-40 to 85	8.60 \| 1ku	MSOP(DGK) \| 8
TLC4545IDR	ACTIVE	-40 to 85	8.60 \| 1ku	SOIC(D) \| 8
TLC4545IDRG4	ACTIVE	-40 to 85	8.60 \| 1ku	SOIC(D) \| 8